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• bash arrays - what is difference between ${#array_name[*]} and ${#array_name[@]}

  - by Ravi

  bash-3.00$ cat arr.bash #!/bin/bash declare -a myarray myarray[2]="two" myarray[5]="five" echo ${#myarray[*]} echo ${#myarray[@]} bash-3.00$ ./arr.bash 2 2 both are giving number of elements of array. So what is difference between the two?

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• Help with a simple incremental backup script

  - by Evan

  I'd like to run the following incomplete script weekly in as a cron job to backup my home directory to an external drive mounted as /mnt/backups #!/bin/bash # TIMEDATE=$(date +%b-%d-%Y-%k:%M) LASTBACKUP=pathToDirWithLastBackup rsync -avr --numeric-ids --link-dest=$LASTBACKUP /home/myfiles /mnt/backups/myfiles$TIMEDATE My first question is how do I correctly set LASTBACKUP to the the the directory in /backs most recently created? Secondly, I'm under the impression that using --link-desk will mean that files in previous backups will not will not copied in later backups if they still exist but will rather symbolically link back to the originally copied files? However, I don't want to retain old files forever. What would be the best way to remove all the backups before a certain date without losing files that may think linked in those backups by currents backups? Basically I'm looking to merge all the files before a certain date to a certain date if that makes more sense than the way I initially framed the question :). Can --link-dest create hard links, and if so, just deleting previous directories wouldn't actually remove linked file? Finally I'd like to add a line to my script that compresses each newly created backup folder (/mnt/backups/myfiles$TIMEDATE). Based on reading this question, I was wondering if I could just use this line gzip --rsyncable /backups/myfiles$TIMEDATE after I run rsync so that sequential rsync --link-dest executions would find already copied and compressed files? I know that's a lot, so many thanks in advance for your help!!

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• Python script won't write data when ran from cron

  - by Ruud

  When I run a python script in a terminal it runs as expected; downloads file and saves it in the desired spot. sudo python script.py I've added the python script to the root crontab, but then it runs as it is supposed to except it does not write the file. $ sudo crontab -l > * * * * * python /home/test/script.py >> /var/log/test.log 2>&1 Below is a simplified script that still has the problem: #!/usr/bin/python scheduleUrl = 'http://test.com/schedule.xml' schedule = '/var/test/schedule.xml' # Download url and save as filename def wget(url, filename): import urllib2 try: response = urllib2.urlopen(url) except Exception: import traceback logging.exception('generic exception: ' + traceback.format_exc()) else: print('writing:'+filename+';') output = open(filename,'wb') output.write(response.read()) output.close() # Download the schedule wget(scheduleUrl, schedule) I do get the message "writing:name of file;" inside the log, to which the cron entry outputs. But the actual file is nowhere to be found... The dir /var/test is chmodded to 777 and using whatever user, I am allowed to add and change files as I please.

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• Which Ecommerce Script Should I Use?

  - by Christofian

  This is a general, community wiki catch-all question to address "I need a eCommerce script that does x, y, and z..." questions. If your question was closed as a duplicate of this question and you feel that the information provided here does not provide a sufficient answer, please open a discussion on Pro Webmasters Meta. I have a list of features that I want for my website's eCommerce script - where can I find a script that includes all of them?

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• Linux script that indicates time the server was offline?

  - by RD

  Below is data taken from my dedicated server: root@namhost [~]# last root pts/0 XXX Tue May 18 09:46 still logged in root pts/0 XXX Mon May 17 08:51 - 12:18 (03:26) reboot system boot XXX Mon May 17 08:49 (1+00:59) root pts/0 XXX Sun May 16 11:50 - 13:15 (01:25) root@namhost [~]# last | grep "system boot" reboot system boot 2.6.18-164.15.1. Mon May 17 08:49 (1+01:02) reboot system boot 2.6.18-164.el5 Tue May 11 04:20 (7+05:31) reboot system boot 2.6.18-164.el5 Tue May 11 03:53 (7+05:58) reboot system boot 2.6.18-128.el5 Mon Oct 5 22:40 (-3:-50) .... I need a script that I can run on an hourly basis that will: 1. Calculate the total downtime since the first date 2. The overall downtime percentage 3. Store this data in a file at /home/bla/file.txt, in the following format: TotalDowntime=03:02:02 Average=0.01% How do I go about doing this?

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• read file in shell script

  - by moata_u

  how can i read file in shell script , then assign each line to an variable that i can use later ,,,(am thinking in way to load an default setting from file) i already try : process (){ } FILE='' read -p "Please enter name of default file : " FILE if [ ! -f $FILE ]; then echo "$FILE : does not exists " exit 1 elif [ ! -r $FILE ]; then echo "$FILE : can not read " fi exec 0<"$FILE" n=0 while read -r line do (assign each line to an variable) done

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• Bash wonkyness on Ubuntu versus RHEL

  - by d34dh0r53

  Fellow faulters, I'm playing around with a one liner that I've developed on a RHEL 5.4 box and I have it working perfectly: TOTAL_RAM=`free | grep Mem: | awk '{ print $2 }'`; \ ps axo rss,comm,pid | awk -v total_ram=$TOTAL_RAM \ '{ proc_list[$2] += $1; } END { for (proc in proc_list) \ { proc_pct = (proc_list[proc]/total_ram)*100; printf("%d\t%s\t%0.2f%\n", proc_list[proc],proc,proc_pct); }}' \ | sort -n | tail -n 10 Which outputs something like the following on my RHEL box: 3736 logmon 0.01% 4156 EvMgrC 0.01% 4692 hald 0.01% 5020 ntpd 0.02% 6252 sshd 0.02% 7784 cvd 0.02% 9224 snmpd 0.03% 13068 dsm_sa_datamgr3 0.04% 23320 dsm_om_connsvc3 0.07% 4249864 mysqld 12.90% However on my Ubuntu 9.04 slice I get this: awk: run time error: not enough arguments passed to printf("%d %s %0.2f% ") FILENAME="-" FNR=104 NR=104 33248 console-kit-dae 3.17 I think it has to be bash that is borking something, but I'm really not doing anything that should be that bash specific. The RHEL box is running: # yum info bash | grep -e Version -e Release Version : 3.2 Release : 24.el5 And the Ubuntu box: # apt-cache show bash | grep -e Version Version: 3.2-5ubuntu1 I haven't dug into this super deeply, and thought I'd ping my fellow johnnys to see if you've ever run across this before. /bow

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• Multi-select menu in bash script

  - by am2605

  I'm a bash newbie but I would like to create a script in which I'd like to allow the user to select multiple options from a list of options. Essentially what I would like is something similar to the example below: #!/bin/bash OPTIONS="Hello Quit" select opt in $OPTIONS; do if [ "$opt" = "Quit" ]; then echo done exit elif [ "$opt" = "Hello" ]; then echo Hello World else clear echo bad option fi done (sourced from http://www.faqs.org/docs/Linux-HOWTO/Bash-Prog-Intro-HOWTO.html#ss9.1) However my script would have more options, and I'd like to allow multiples to be selected. So somethig like this: 1) Option 1 2) Option 2 3) Option 3 4) Option 4 5) Done Having feedback on the ones they have selected would also be great, eg plus signs next to ones they ahve already selected. Eg if you select "1" I'd like to page to clear and reprint: 1) Option 1 + 2) Option 2 3) Option 3 4) Option 4 5) Done Then if you select "3": 1) Option 1 + 2) Option 2 3) Option 3 + 4) Option 4 5) Done Also, if they again selected (1) I'd like it to "deselect" the option: 1) Option 1 2) Option 2 3) Option 3 + 4) Option 4 5) Done And finally when Done is pressed I'd like a list of the ones that were selected to be displayed before the program exits, eg if the current state is: 1) Option 1 2) Option 2 + 3) Option 3 + 4) Option 4 + 5) Done Pressing 5 should print: Option 2, Option 3, Option 4 and the script terminate. So my question - is this possible in bash, and if so is anyone able to provide a code sample? Any advice would be much appreciated.

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• Running SQL*Plus with bash causes wrong encoding

  - by Petr Mensik

  I have a problem with running SQL*Plus in the bash. Here is my code #!/bin/bash #curl http://192.168.168.165:8080/api_test/xsql/f_exp_order_1016.xsql > script.sql wget -O script.sql 192.168.168.165:8080/api_test/xsql/f_exp_order_1016.xsql set NLS_LANG=_.UTF8 sqlplus /nolog << ENDL connect login/password set sqlblanklines on start script.sql exit <<endl I download the insert statements from our intranet, put it into sql file and run it through SQL*Plus. This is working fine. My problem is that when I save the file script.sql my encoding goes wrong. All special characters(like íášc) are broken and that's causing inserting wrong characters into my DB. Encoding of that file is UTF-8, also UTF-8 is set on the XSQL page on our intranet. So I really don't know where could be a problem. And also any advices regarding to my script are welcomed, I am total newbie in Linux scripting:-)

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• bash : "set -e" and check if a user exists make script exit

  - by Dahmad Boutfounast

  i am writing a script to install a program with bash, i want to exit on error so i added "set -e" in the beginning of my script. the problem is that i have to check if a user exists inside of my script, to do this i am using "grep "^${USER}:" /etc/passwd", if the user exists, the script runs normally, but if the user doesn't exist, this command exists, and i don't want to exit on this case (i have to create the user and continue my installation). so what's the solution to make my script continue running ?? i tried to redirect the output of "grep" to a variable, but i still have the same problem :( thanks.

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• Case insensitive bash auto-complete

  - by Vitaly Polonetsky

  Is there a way to make the file/dir auto-complete in bash case insensitive? For example I would like to write: /opt/ibm/whatever/test [TAB] And bash will auto-complete it to: /opt/IBM/Whatever/TESTfile Or at least only the last part of test to TESTfile. I know that filesystems are case-sensitive, I just don't want to remember which parts are UPPER-case, I want auto-complete to fix the path for me. And if I have both TESTfile and testfile, just show me both of them like bash does today with auto-complete conflicts.

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• Bash script to keep last x number of files and delete the rest

  - by Brady

  I have this bash script which nicely backs up my database on a cron schedule: #!/bin/sh PT_MYSQLDUMPPATH=/usr/bin PT_HOMEPATH=/home/philosop PT_TOOLPATH=$PT_HOMEPATH/philosophy-tools PT_MYSQLBACKUPPATH=$PT_TOOLPATH/mysql-backups PT_MYSQLUSER=********* PT_MYSQLPASSWORD="********" PT_MYSQLDATABASE=********* PT_BACKUPDATETIME=`date +%s` PT_BACKUPFILENAME=mysqlbackup_$PT_BACKUPDATETIME.sql.gz PT_FILESTOKEEP=14 $PT_MYSQLDUMPPATH/mysqldump -u$PT_MYSQLUSER -p$PT_MYSQLPASSWORD --opt $PT_MYSQLDATABASE | gzip -c > $PT_MYSQLBACKUPPATH/$PT_BACKUPFILENAME Problem with this is that it will keep dumping the backups in the folder and not clean up old files. This is where the variable PT_FILESTOKEEP comes in. Whatever number this is set to thats the amount of backups I want to keep. All backups are time stamped so by ordering them by name DESC will give you the latest first. Can anyone please help me with the rest of the BASH script to add the clean up of files? My knowledge of BASH is lacking and I'm unable to piece together the code to do the rest.

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• Is it possible to run bash builtin from non bash script?

  - by tig

  Is it possible to run for example history -w for underlying bash shell from ruby script? Or better is it possible to run builtin command for bash shell knowing only its pid? The only way I found is to trap signal like trap "history -w" SIGUSR1 and then send signal to process, but I am not sure that it is a good practice and USR1 is not used by bash, also this way I can execute max 2 commands (USR1 and USR2). And I have to define trap before using it. I am on Mac so there is not SIGRTMIN..SIGRTMAX.

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• Unique Features of bash compared to zsh

  - by Tim

  I have been a zsh user for quite some time (before that tcsh and before that csh). I am quite happy with it, but was wondering if there are any compelling features of bash that do not exist in zsh. And conversely, are there zsh features which do not exist in bash. My current feel is that bash is better: If you are familiar with it already and don't want to learn new syntax. It is going to exist on most all *nix machines by default, whereas zsh may be an extra install. Not trying to start a religious battle here, which is why I'm just looking for features which exist in only one of the shells.

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• Execute background program in bash without job control

  - by Wu Yongzheng

  I often execute GUI programs, such as firefox and evince from shell. If I type "firefox &", firefox is considered as a bash job, so "fg" will bring it to foreground and "hang" the shell. This becomes annoying when I have some background jobs such as vim already running. What I want is to launch firefox and dis-associate it with bash. Consider the following ideal case with my imaginary runbg: $ vim foo.tex ctrl+z and vim is job 1 $ pdflatex foo $ runbg evince foo.pdf evince runs in background and I get me bash prompt back $ fg vim goes foreground Is there any way to do this using existing program? If no, I will write my own runbg.

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• Empty /var/log after running cron bash script

  - by Ortix92

  I wrote a little bash script and all of a sudden my /var/log folder is completely empty except for the log I created for the bash script. This is the script I'm running every hour with cron: #!/bin/bash STL_DIR=/path/to/some/folder/i/hid LOGFILE=/var/log/stl_upload.log now=`date` echo "----------Start of Transmission----------" 2>&1 | tee -a $LOGFILE echo "Starting transfer at $now" 2>&1 | tee -a $LOGFILE rsync -av -e ssh $STL_DIR [email protected]:/users/path/folder 2>&1 | tee -a $LOGFILE echo "----------End of transmission----------" 2>&1 | tee -a $LOGFILE printf "\n" 2>&1 | tee -a $LOGFILE I want to be clear that I'm not 100% certain this is related to the empty logs folder. So if anyone could give me a pointer as to what could be going on about the reason why my log folder is empty, that'd be great.

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• bash disable line wrap without truncation

  - by Eric Huang

  I am using a template heavy library in c++ and need to understand the template errors. Reading line wrapped template errors is a serious pain. Is there a way to disable line wrapping in bash without also truncating the output. Additionally, is there a way to do horizontal scrolling on the output. I have seen this answer, how to make bash not to wrap output?, but the output is truncated. The solution doesn't have to be bash targeted, if there is method for this using another shell, tmux, piping make output to another program, compiling from within vim, etc, I'll use it. (Except for copy-pasting into gedit)

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• Different behaviour of script locally and over ssh

  - by neorg

  I have a script on a server-A Script-A #!/bin/bash -l echo "script-A.sh" | change-environment.sh When I ssh onto server-A and execute it, it works fine. However, when I ssh user@server-A ./script-A.sh Script-A executes, but throws an undefined variable error in change-environment.sh. change-environment.sh runs in the c shell(I have no control over the script so the method I have used is about the only way I can use it), but everything else is in bash. Had found a similar question at I can run a script locally, but cannot do "ssh HOSTNAME /path/to/script.sh". However, there was no solution to the issue and it was a year old.

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• Script to email files content

  - by Tarun

  I have created a shell script that takes backups everyday and emails its execution as successfull or unsuccessfull. Now I want that it send the contents of log file it creates with the mail as well. I have seen how to send file as attachement but I want to send the contents of the file as email message and not the file. Please Help. Its code is like #Email Settings Message_Success="Database Backup generated successfully" Message_Failure="Problem occured while generating Database Backup please verify" Subject="Database Backup Status Mail" Recipients="[email protected]" #Verify Backup Created if [ -f "$Path_Mysql_Dump" ]; then echo "Database Backup Created" >> $Path_Log_File echo "$Message_Success" | mail -s "$Subject" "$Recipients" else echo "Database Backup not created please verify the process will terminate" >> $Path_Log_File echo "$Message_Failure" | mail -s "$Subject" "$Recipients" exit -1 fi

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• How do I configure Tomcat services in Ubuntu?

  - by Karan

  I have created a Tomcat script inside the /etc/init.d directory which is #!/bin/bash # description: Tomcat Start Stop Restart # processname: tomcat # chkconfig: 234 20 80 JAVA_HOME=/usr/java/jdk1.6.0_30 export JAVA_HOME PATH=$JAVA_HOME/bin:$PATH export PATH CATALINA_HOME=/usr/tomcat/apache-tomcat-6.0.32 case $1 in start) sh $CATALINA_HOME/bin/startup.sh ;; stop) sh $CATALINA_HOME/bin/shutdown.sh ;; restart) sh $CATALINA_HOME/bin/shutdown.sh sh $CATALINA_HOME/bin/startup.sh ;; esac exit 0 After this I am trying to add this into chkconfig which is as [root@blanche init.d]# chkconfig --add tomcat [root@blanche init.d]# chkconfig --level 234 tomcat on But it is giving me the following error: [root@blanche init.d]:/etc/init.d$ chkconfig --add tomcat insserv: warning: script 'K20acpi-support' missing LSB tags and overrides insserv: warning: script 'tomcat' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'failsafe-x' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'acpid' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'dmesg' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'udevmonitor' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'ufw' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'module-init-tools' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'plymouth-splash' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'gdm' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'rsyslog' missing LSB tags and overrides insserv: warning: current start runlevel(s) (0 6) of script `wpa-ifupdown' overwrites defaults (empty). The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'hwclock' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'console-setup' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'udev' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'plymouth-log' missing LSB tags and overrides insserv: warning: current start runlevel(s) (0) of script `halt' overwrites defaults (empty). The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'mysql' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'atd' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'network-manager' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'alsa-mixer-save' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'udev-finish' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'screen-cleanup' missing LSB tags and overrides insserv: warning: script 'acpi-support' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'avahi-daemon' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'dbus' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'procps' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'irqbalance' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'plymouth-stop' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'anacron' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'plymouth' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'udevtrigger' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'hostname' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'hwclock-save' missing LSB tags and overrides insserv: warning: current start runlevel(s) (0 6) of script `networking' overwrites defaults (empty). insserv: warning: current start runlevel(s) (0 6) of script `umountfs' overwrites defaults (empty). insserv: warning: current start runlevel(s) (0 6) of script `umountnfs.sh' overwrites defaults (empty). The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'network-interface' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'network-interface-security' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'cron' missing LSB tags and overrides The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'apport' missing LSB tags and overrides insserv: warning: current start runlevel(s) (6) of script `reboot' overwrites defaults (empty). insserv: warning: current start runlevel(s) (0 6) of script `umountroot' overwrites defaults (empty). insserv: warning: current start runlevel(s) (0 6) of script `sendsigs' overwrites defaults (empty). insserv: There is a loop between service rsyslog and pulseaudio if stopped insserv: loop involving service pulseaudio at depth 3 insserv: loop involving service rsyslog at depth 2 insserv: loop involving service udev at depth 1 insserv: There is a loop between service rsyslog and pulseaudio if stopped insserv: loop involving service bluetooth at depth 2 insserv: exiting now without changing boot order! /sbin/insserv failed, exit code 1 tomcat 0:off 1:off 2:off 3:off 4:off 5:off 6:off Please suggest what to do for configuring a Tomcat server as a service.

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• how to souce a csh script in bash to set the enviroment

  - by Daniel

  We have oracle running on Solaris, and the shell is by default CSH. So the login script set the oracle_home,oracle_sid in csh also. But I don't like csh and want to use bash to do my work. So how to source the csh login script in bash? e.g, the following is what in the .cshrc file. And when use bash, I'd like use these variables. One way is to copy the variables again and use bash command, such as export ORACLE_SID=TEST. But doing so will let us to maintain two copy of the files. And when we change the database name, or upgrade the database, I need to maintian the bash login file seperately. It's nice to just use something like source .cshr in bash, but it doesn't work. setenv ORACLE_SID TEST setenv ORACLE_HOME /oracle/TEST/home/products/10204 setenv EPC_DISABLED TRUE setenv MANPATH /usr/local/man:/usr/share/man setenv EDITOR vi setenv LD_LIBRARY_PATH $ORACLE_HOME/lib:/usr/sfw/lib/64 setenv NLS_LANG AMERICAN_AMERICA.UTF8 setenv NLS_DATE_FORMAT "DD-MON-RR"

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• Bash-Scripting - Munin Plugin don't work

  - by FTV Admin

  i have written a munin-plugin to count the http-statuscodes of lighttpd. The script: #!/bin/bash ###################################### # Munin-Script: Lighttpd-Statuscodes # ###################################### ##Config # path to lighttpd access.log LIGHTTPD_ACCESS_LOG_PATH="/var/log/lighttpd/access.log" # rows to parse in logfile (higher value incrase time to run plugin. if value to low you may get bad counting) LOG_ROWS="200000" # #munin case $1 in autoconf) # check config AVAILABLE=`ls $LIGHTTPD_ACCESS_LOG_PATH` if [ "$AVAILABLE" = "$LIGHTTPD_ACCESS_LOG_PATH" ]; then echo "yes" else echo "No: "$AVAILABLE echo "Please check your config!" fi exit 0;; config) # graph config cat <<'EOM' graph_title Lighhtpd Statuscodes graph_vlabel http-statuscodes / min graph_category lighttpd 1xx.label 1xx 2xx.label 2xx 3xx.label 3xx 4xx.label 4xx 5xx.label 5xx EOM exit 0;; esac ## calculate AVAILABLE=`ls $LIGHTTPD_ACCESS_LOG_PATH` if [ "$AVAILABLE" = "$LIGHTTPD_ACCESS_LOG_PATH" ]; then TIME_NOW=`date` CODE_1xx="0" CODE_2xx="0" CODE_3xx="0" CODE_4xx="0" CODE_5xx="0" for i in 1 2 3 4 5; do TIME5=`date +%d/%b/%Y:%k:%M --date "$TIME_NOW -"$i"min"` CODE_1xx=$(( $CODE_1xx + `tail -n $LOG_ROWS $LIGHTTPD_ACCESS_LOG_PATH | grep "$TIME5" | grep 'HTTP/1.1" 1' | grep -c " "` )) CODE_2xx=$(( $CODE_2xx + `tail -n $LOG_ROWS $LIGHTTPD_ACCESS_LOG_PATH | grep "$TIME5" | grep 'HTTP/1.1" 2' | grep -c " "` )) CODE_3xx=$(( $CODE_3xx + `tail -n $LOG_ROWS $LIGHTTPD_ACCESS_LOG_PATH | grep "$TIME5" | grep 'HTTP/1.1" 3' | grep -c " "` )) CODE_4xx=$(( $CODE_4xx + `tail -n $LOG_ROWS $LIGHTTPD_ACCESS_LOG_PATH | grep "$TIME5" | grep 'HTTP/1.1" 4' | grep -c " "` )) CODE_5xx=$(( $CODE_5xx + `tail -n $LOG_ROWS $LIGHTTPD_ACCESS_LOG_PATH | grep "$TIME5" | grep 'HTTP/1.1" 5' | grep -c " "` )) done CODE_1xx=$(( $CODE_1xx / 5 )) CODE_2xx=$(( $CODE_2xx / 5 )) CODE_3xx=$(( $CODE_3xx / 5 )) CODE_4xx=$(( $CODE_4xx / 5 )) CODE_5xx=$(( $CODE_5xx / 5 )) echo "1xx.value "$CODE_1xx echo "2xx.value "$CODE_2xx echo "3xx.value "$CODE_3xx echo "4xx.value "$CODE_4xx echo "5xx.value "$CODE_5xx else echo "1xx.value U" echo "2xx.value U" echo "3xx.value U" echo "4xx.value U" echo "5xx.value U" fi If i run the script on local machine it runs perfectly: root@server1 /etc/munin/plugins # ll lrwxrwxrwx 1 root root 45 2011-12-19 15:23 lighttpd_statuscodes -> /usr/share/munin/plugins/lighttpd_statuscodes* root@server1 /etc/munin/plugins # ./lighttpd_statuscodes autoconf yes root@server1 /etc/munin/plugins # ./lighttpd_statuscodes config graph_title Lighhtpd Statuscodes graph_vlabel http-statuscodes / min graph_category lighttpd 1xx.label 1xx 2xx.label 2xx 3xx.label 3xx 4xx.label 4xx 5xx.label 5xx root@server1 /etc/munin/plugins #./lighttpd_statuscodes 1xx.value 0 2xx.value 5834 3xx.value 1892 4xx.value 0 5xx.value 0 But Munin shows no graph: http://s1.directupload.net/images/111219/3psgq3vb.jpg I have tested the Plugin from munin-server via telnet: root@munin-server /etc/munin/plugins/ # telnet 123.123.123.123 4949 Trying 123.123.123.123... Connected to 123.123.123.123. Escape character is '^]'. # munin node at server1.cluster1 fetch lighttpd_statuscodes 1xx.value U 2xx.value U 3xx.value U 4xx.value U 5xx.value U . Connection closed by foreign host. You can see in the script that value = U only printed, when the script can't check the lighttpd's access.log. But why can't script do it, when running via munin, and when running on local machine all is ok? Is there a bug in my bash-script? I have no Idea. Thanks for helping!

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• Comments syntax for Idoc Script

  - by kyle.hatlestad

  Maybe this is widely known and I'm late to the party, but I just ran across the syntax for making comments in Idoc Script. It's been something I've been hoping to see for a long time. And it looks like it quietly snuck into the 10gR3 release. So for comments in Idoc Script, you simply [[% surround your comments in these symbols. %]] They can be on the same line or span multiple lines. If you look in the documentation, it still mentions making comments using the syntax. Well, that's certainly not an ideal approach. You're stuffing your comment into an actual variable, it's taking up memory, and you have to watch double-quotes in your comment. A perhaps better way in the old method is to start with my comments . Still not great, but now you're not assigning something to a variable and worrying about quotes. Unfortunately, this syntax only works in places that use the Idoc format. It can't be used in Idoc files that get indexed (.hcsp & .hcsf) and use the <!--$...--> format. For those, you'll need to continue using the older methods. While on the topic, I thought I would highlight a great plug-in to Notepad++ that Arnoud Koot here at Oracle wrote for Idoc Script. It does script highlighting as well as type-ahead/auto-completion for common variables, functions, and services. For some reason, I can never seem to remember if it's DOC_INFO_LATESTRELEASE or DOC_INFO_LATEST_RELEASE, so this certainly comes in handy. I've updated his plug-in to use this new comments syntax. You can download a copy of the plug-in here which includes installation instructions.

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• Cannot cd to parent directory with cd dirname

  - by Sharjeel Sayed

  I have made a bash command which generates a one liner for restarting all Weblogic ( 8,9,10) instances on a server /usr/ucb/ps auwwx | grep weblogic | tr ' ' '\n' | grep security.policy | grep domain | awk -F'=' '{print $2}' | sed 's/weblogic.policy//' | sed 's/security\///' | sort | sed 's/^/cd /' | sed 's/$/ ; cd .. ; \/recycle_script_directory_path\/recycle/ ;' | tr '\n' ' ' To restart a Weblogic instance, the recycle ( /recycle_script_directory_path/recycle/) script needs to be initiated from within the domain directory as the recycle script pulls some application information from some .ini files in the domain directory. The following part of the script generates a line to cd to the parent directory of the app i.e. the domain directory sed 's/$/ ; cd .. ; \/recycle_script_directory\/recycle/ ;' | tr '\n' ' ' I am sure there is a better way to cd to the parent directory like cd dirname but every time i run the following cd command , it throws a "Variable syntax" error. cd $(dirname '/domain_directory_path/app_name') How do i incorporate the cd to the directory name in a better way ? Also are there any enhancements for my bash command Some info on my script 1) The following part lists out the weblogic instances running along with their full path /usr/ucb/ps auwwx | grep weblogic | tr ' ' '\n' | grep security.policy | grep domain | awk -F'=' '{print $2}' | sed 's/weblogic.policy//' | sed 's/security\///' | sort 2) The grep domain part is required since all domain names have domain as the suffix

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• In Bash, file starts with a "-"

  - by Dean J

  An application created a directory called "-123456" in my /tmp directory. In Bash, rm -rf * returns: bash: cd: -7: invalid option rm -rf "-123456" Same thing. Help?

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