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  • bash code in rc.local not excuting after bootup

    - by mrTomahawk
    Does anyone know why a system would not execute the script code within rc.local on bootup? I have a post configuration bash script that I want to run after the initial install of VMware ESX (Red Hat), and for some reason it doesn't seem to execute. I have the setup to log its start of execution and even its progress so that I can see how far it gets in case it fails at some point, but even when I look at that log, I am finding that didn't even started the execution of the script code. I already checked to see that script has execution permissions (755), what else should I be looking at? Here is the first few lines of my code: #!/bin/sh echo >> /tmp/configLog "" echo >> /tmp/configLog "Entering maintenance mode"

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  • Bash Shell Hangs on ?+Tab-complete

    - by michaelmichael
    I often use tab completion in Bash when completing directories, but I find that it hangs for an unacceptable amount of time if I accidentally include a question mark in the directory. I'd like to know why and how to prevent it if possible. Here's the scenario: I start a command and use the ~ key to represent home: ls ~?Desktop/co Oops! I held down the Shift for a split-second too long. I had intended for ? to be /. But (oh no!) muscle memory has already kicked in. I've hit the Tab before I noticed the mistake. Now I'm stuck waiting for the shell to beep angrily at me. Usually a minute or two. What happened? Why did the question mark cause it to hang and eventually beep? Any way to stop it from hanging?

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  • Bash script for mysql backup - error handling

    - by Jure1873
    I'm trying to backup a bunch of MyISAM tables in a way that would allow me to rsync/rdiff the backup directory to a remote location. I've came up with a script that dumps only the recently changed tables and sets the date of the file so that rsync can pick up only the changed ones, but now I don't know how to do the error handling - I would like the script to exit with a non 0 value if there are errors. How could I do that? #/bin/bash BKPDIR="/var/backups/db-mysql" mkdir -p $BKPDIR ERRORS=0 FIELDS="TABLE_SCHEMA, TABLE_NAME, UPDATE_TIME" W_COND="UPDATE_TIME >= DATE_ADD(CURDATE(), INTERVAL -2 DAY) AND TABLE_SCHEMA<>'information_schema'" mysql --skip-column-names -e "SELECT $FIELDS FROM information_schema.tables WHERE $W_COND;" | while read db table tstamp; do echo "DB: $db: TABLE: $table: ($tstamp)" mysqldump $db $table | gzip > $BKPDIR/$db-$table.sql.gz touch -d "$tstamp" $BKPDIR/$db-$table.sql.gz done exit $ERRORS

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  • Bash Completion Problem with sudo on Ubuntu VPS

    - by gokdemir
    I have a VPS from Linode. I deployed Ubuntu 10.04 server. I added a user and put it sudoers file. when I write as a user apti <TAB> it comletes with tab to aptitude <TAB> but when I continue to aptitude upd <TAB> it didnt complete but on my desktop it works great. Even worse if I try same command with sudo sudo apti <TAB> does not work I checked .basrc and /etc/bash.basrc completion is commented out so what is wrong. By the way when I root it works

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  • Sorting downloads folder with bash script

    - by Marek
    I'm writing script for my own needs to sort Downloads folder on my mac in bash. I pass to the function parameters: source directory, destination directory and array of file extensions I want to move. My problem is that when function is in "find" line then it copies just one file with that extension but when I remove all variables and I put parameters directly then it works fine. What's going on ? function moveFaster(){ clear src=$1 dst=$2 typ=$3 if [ ! -d $dst ] then mkdir $dst fi for i in "${typ[@]}" do find $src -name "${i}" -exec mv {} ${dst} \; done }

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  • Run Bash Script Another Server

    - by psce
    I want to run command one by one, for change the names of the directories on the server. When I run script, directories renamed in server 1. But, directories are not found in server 2. What the error could be in the script? Script; #!/bin/bash mach_directory=/home/user/example erase_dir1=cache erase_dir2=tmp for i in {0..10} do user=user server=$(ssh $user@server$i hostname) ssh $user@$server find $mach_directory -type d -name $erase_dir1 ! -path "*Admin/$erase_dir1*" -print0 | while IFS= read -r -d '' file ; do mv "$file" "${file}_$(date +%d%m%Y)"; done ssh $user@$server find $mach_directory -type d -name $erase_dir2 ! -path "*Admin/$erase_dir2*" -print0 | while IFS= read -r -d '' file ; do mv "$file" "${file}_$(date +%d%m%Y)"; done done

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  • How to reset .bashrc file which edited before to set PATH ANDROID sdk

    - by revan
    bash: export: `/home/entw/bin:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local /bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/bin': not a valid identifier bash: /home/entw/.bashrc: line 111: unexpected EOF while looking for matching `"' bash: /home/entw/.bashrc: line 112: syntax error: unexpected end of file entw@entwine-desktop:~$ This is the error i frequently getting in terminal, shows when opend termianl. The following commands i applied in terminal, sudo gedit $HOME/.bashrc and added some path varable like android SDK, and run the following command source ~/.bashrc got the error in terminal bash: export: `/home/entw/bin:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local /bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/bin': not a valid identifier bash: /home/entw/.bashrc: line 111: unexpected EOF while looking for matching `"' bash: /home/entw/.bashrc: line 112: syntax error: unexpected end of file entw@entwine-desktop:~$ but if i try to open agin that file shows the error file or directory not found. what do i do to set all correct ??, please any help? This forum i tried [forum]: http://forum.xda-developers.com/showthread.php?t=919425 "--point 2"

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  • Parsing the output of "uptime" with bash

    - by Keek
    I would like to save the output of the uptime command into a csv file in a Bash script. Since the uptime command has different output formats based on the time since the last reboot I came up with a pretty heavy solution based on case, but there is surely a more elegant way of doing this. uptime output: 8:58AM up 15:12, 1 user, load averages: 0.01, 0.02, 0.00 desired result: 15:12,1 user,0.00 0.02 0.00, current code: case "`uptime | wc -w | awk '{print $1}'`" in #Count the number of words in the uptime output 10) #e.g.: 8:16PM up 2:30, 1 user, load averages: 0.09, 0.05, 0.02 echo -n `uptime | awk '{ print $3 }' | awk '{gsub ( ",","" ) ; print $0 }'`","`uptime | awk '{ print $4,$5 }' | awk '{gsub ( ",","" ) ; print $0 }'`","`uptime | awk '{ print $8,$9,$10 }' | awk '{gsub ( ",","" ) ; print $0 }'`"," ;; 12) #e.g.: 1:41pm up 105 days, 21:46, 2 users, load average: 0.28, 0.28, 0.27 echo -n `uptime | awk '{ print $3,$4,$5 }' | awk '{gsub ( ",","" ) ; print $0 }'`","`uptime | awk '{ print $6,$7 }' | awk '{gsub ( ",","" ) ; print $0 }'`","`uptime | awk '{ print $10,$11,$12 }' | awk '{gsub ( ",","" ) ; print $0 }'`"," ;; 13) #e.g.: 12:55pm up 105 days, 21 hrs, 2 users, load average: 0.26, 0.26, 0.26 echo -n `uptime | awk '{ print $3,$4,$5,$6 }' | awk '{gsub ( ",","" ) ; print $0 }'`","`uptime | awk '{ print $7,$8 }' | awk '{gsub ( ",","" ) ; print $0 }'`","`uptime | awk '{ print $11,$12,$13 }' | awk '{gsub ( ",","" ) ; print $0 }'`"," ;; esac

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  • Bash mine script, please

    - by HomelyPoet
    The script, in and of its self, is fairly self-explanatory. Use if You so desire; any and all criticism wouldst be appreciated, as wouldst any suggestions for improvement. First iteration was writ upon OS X 10.5.8 Leopard, current iteration was run upon OS X 10.6.4 Snow Leopard with Safari 5.0.2 (6533.18.5). Also, any illumination as to why the first line ' if [ -f ] ' works, but ' if [ -f ~/Library/Safari/LocalStorage/*.localstorage ] ' generates an error? [yes, I am a bit of a Noob] Code: #! /bin/bash # SafariClear0.0.6 if [ -f ] then cat /dev/null > ~/Library/Safari/LocalStorage/*.localstorage rm -f ~/Library/Safari/LocalStorage/*.localstorage fi if [ -f ~/Library/Safari/LocalStorage/*.localstorage ] then echo "Oy vey!" fi cd ~/Library/Safari/ cat /dev/null > WebpageIcons.db cat /dev/null > TopSites.plist cat /dev/null > LocationPermissions.plist cat /dev/null > LastSession.plist cat /dev/null > History.plist echo "Clear" exit

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  • Server Bash Line Wrapping Over Text & In Wrong Place

    - by Pez Cuckow
    This is quite a hard problem to explain, when connecting to one of my servers using the bash shell, under any user the line wrapping is broken and has all sorts of problems. Once of which I detail in screenshots below: Other problems I experience include nano getting very confused about which line and or letter I am on, as shown by typing the same message into nano: These problems only occur when connecting as I previously mentioned to one of my servers which runs CentOs. Do you know why this is occurring and what I can do to fix it? On other servers the message works fine! Thanks for your time, Output of requested commands: Server that doesn't work properly: Working server: Could it perhaps be the custom prompt on the non working server? In .bashrc PS1='\e[1;32m\u@\h\e[m:\e[1;34m\w\e[m$ ' Commenting this out appeared to resolve the problem. Google says line wrapping errors can occur if you don't conform to these rules use the \[ escape to begin a sequence of non-printing characters, and the \] escape to signal the end of such a sequence I am not sure where this would fit in on my prompt?

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  • Bash script dosn't open in terminal on reboot

    - by twigg
    Quick overview, I have created a script that reboots the laptop after x amount of time and x amount of cycles. I have added the script to the start-up applications and the script does seem to be running in the background but never opens a terminal Window. Am I missing something? Adding Code (this is saved in a file called countdown.sh) #!/bin/bash # check if passed.txt exists if it does, send to soak test if [ -f passed.txt ]; then echo reboot has passed $nol cycles sleep 5; echo Starting soak tests sleep 5; rm testlog.txt; rm passed.txt; phoronix-test-suite run quick-test exit 0; fi # check if file testlog.txt exists if not create it if [ ! -f testlog.txt ]; then echo >> testlog.txt; fi # read reboot file to see how many loops have been completed exec < testlog.txt nol=0 while read line do nol=`expr $nol + 1` done # start the countdown, x is time limit let x=10; while [ $x -gt 0 ]; do clear; figlet "Rebooting in..."; figlet $x; let x-=1; sleep 1; done; echo reboot success $nol >> testlog.txt; shutdown -r now; # set how many times the script should shutdown the laptop reboot_count=1 # if number of reboots matches nol's then stop the script # create a new text file called passed.txt if [ "$nol" == "$reboot_count" ]; then echo reboot passed $nol cycles >> passed.txt; fi

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  • How do I hook into Tar with BASH?

    - by orb
    Long Story Short I am working with Tar archives that contain PNG images in base64 encoding. I would like to use BASH (or whatever else works) to hook into the extraction function of Tar to decode PNG images from base64 encoding to standard PNG encoding after the files are unpacked. A simple cat $input-file | base64 -d >$output-file will successfully decode the images. Is there a way I can hook into tar -xf so that users do not have to do any (or minimal) extra work to decode the images? In the GNU Tar documentation (http://www.gnu.org/software/tar/manual/html_chapter/Backups.html#SEC97) I found that there are in fact variables reserved to hold the names of functions I desire to be hooked into various moments in Tar program execution. However, the documentation explains that these variables, along with other variables that can be set to configure Tar, are located in a file named backup-specs. Unfortunately, the path to this file is not given. Further, running sudo find / -name backup-specs tells me that this file is not present on my Ubuntu version 13.04 system. Background Information not included in the Long Story Short I have been working on a browser-based (WebGL) particle effect creation application (http://www.particleeffect.org), (https://github.com/cgrabowski/webgl-particle-effect-editor), (https://github.com/cgrabowski/webgl-particle-effect). I have began to write a client-side-only solution for saving and loading effect data as a tar archive. However, since client-side JavaScript has limited capability to process binary data, the images used as textures in the effect are saved with base64 encoding. I have been able to implement saving effect data as a Tar archive (haven't pushed that to Github yet). However, the images present in said Tar archive cannot be manipulated unless they are decoded from base64 encoding.

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  • Environment variables in bash_profile or bashrc?

    - by Viriato
    I have found this question [blog]: Difference between .bashrc and .bash_profile very useful but after seeing the most voted answer (very good by the way) I have further questions. Towards the end of the most voted, correct answer I see the statement as follows : Note that you may see here and there recommendations to either put environment variable definitions in ~/.bashrc or always launch login shells in terminals. Both are bad ideas. Why is it a bad idea (I am not trying to fight, I just want to understand)? If I want to set an environment variable and add it to the PATH (for example JAVA_HOME) where it would be the best place to put the export entry? in ~/.bash_profile or ~/.bashrc? If the answer to question number 2 is ~/.bash_profile, then I have two further questions: 3.1. What would you put under ~/.bashrc? only aliases? 3.2. In a non-login shell, I believe the ~/.bash_profile is not being "picked up". If the export of JAVA_HOME entry was in bash_profile would I be able to execute javac & java commands? Would it find them on the PATH? Is that the reason why some posts and forums suggest setting JAVA_HOME and alike to ~/.bashrc? Thanks in advance.

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  • Bash Completion Script Help

    - by inxilpro
    So I'm just starting to learn about bash completion scripts, and I started to work on one for a tool I use all the time. First I built the script using a set list of options: _zf_comp() { local cur prev actions COMPREPLY=() cur="${COMP_WORDS[COMP_CWORD]}" prev="${COMP_WORDS[COMP_CWORD-1]}" actions="change configure create disable enable show" COMPREPLY=($(compgen -W "${actions}" -- ${cur})) return 0 } complete -F _zf_comp zf This works fine. Next, I decided to dynamically create the list of available actions. I put together the following command: zf | grep "Providers and their actions:" -A 100 | grep -P "^\s*\033\[36m\s*zf" | awk '{gsub(/[[:space:]]*/, "", $3); print $3}' | sort | uniq | awk '{sub("\-", "\\-", $1); print $1}' | tr \\n " " | sed 's/^ *\(.*\) *$/\1/' Which basically does the following: Grabs all the text in the "zf" command after "Providers and their actions:" Grabs all the lines that start with "zf" (I had to do some fancy work here 'cause the ZF command prints in color) Grab the second piece of the command and remove any spaces from it (the spaces part is probably not needed any more) Sort the list Get rid of any duplicates Escape dashes (I added this when trying to debug the problem—probably not needed) Trim all new lines Trim all leading and ending spaces The above command produces: $ zf | grep "Providers and their actions:" -A 100 | grep -P "^\s*\033\[36m\s*zf" | awk '{gsub(/[[:space:]]*/, "", $3); print $3}' | sort | uniq | awk '{sub("\-", "\\-", $1); print $1}' | tr \\n " " | sed 's/^ *\(.*\) *$/\1/' change configure create disable enable show $ So it looks to me like it's producing the exact same string as I had in my original script. But when I do: _zf_comp() { local cur prev actions COMPREPLY=() cur="${COMP_WORDS[COMP_CWORD]}" prev="${COMP_WORDS[COMP_CWORD-1]}" actions=`zf | grep "Providers and their actions:" -A 100 | grep -P "^\s*\033\[36m\s*zf" | awk '{gsub(/[[:space:]]*/, "", $3); print $3}' | sort | uniq | awk '{sub("\-", "\\-", $1); print $1}' | tr \\n " " | sed 's/^ *\(.*\) *$/\1/'` COMPREPLY=($(compgen -W "${actions}" -- ${cur})) return 0 } complete -F _zf_comp zf My autocompletion starts acting up. First, it won't autocomplete anything with an "n" in it, and second, when it does autocomplete ("zf create" for example) it won't let me backspace over my completed command. The first issue I'm completely stumped on. The second I'm thinking might have to do with escape characters from the colored text. Any ideas? It's driving me crazy!

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  • Refresh devices - reconnect CF card drive by script (unplug-plug equivalent)

    - by Chris
    Hello I plug a completely clean CF-card into my USB card-writer. Then I dd a mbr block of 512 bytes size to the device, which contains the partition table and the definition of one partition. Problem: While "fdisk -l /dev/sdx" correctly displays the partition, it happens that there is no device like "/dev/sdx1" after these operations (as it was not present before). Unplugging and plugging the card-writer solves the problem and makes the device(s) appear. Since I use this procedure in a script, manually unplugging and re-plugging is no option whatsoever. Is there a way to "refresh" the devices or to "unplug and re-plug" the drive by script such that /dev/sdx1 appears? Thanks for any help, Chris

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  • Passing two arguments to a command using pipes

    - by firebat
    Usually, we only need to pass one argument: echo abc | cat echo abc | cat some_file - echo abc | cat - some_file Is there a way to pass two arguments? Something like {echo abc , echo xyz} | cat cat `echo abc` `echo xyz` I could just store both results in a file first echo abc > file1 echo xyz > file2 cat file1 file2 But then I might accidentally overwrite a file, which is not ok. This is going into a non-interactive script. Basically, I need a way to pass the results of two arbitrary commands to cat without writing to a file. UPDATE: Sorry, the example masks the problem. While { echo abc ; echo xyz ; } | cat does seem to work, the output is due to the echos, not the cat. A better example would be { cut -f2 -d, file1; cut -f1 -d, file2; } | paste -d, which does not work as expected. With file1: a,b c,d file2: 1,2 3,4 Expected output is: b,1 d,3 RESOLVED: Use process substitution: cat <(command1) <(command2) Alternatively, make named pipes using mkfifo: mkfifo temp1 mkfifo temp2 command1 > temp1 & command2 > temp2 & cat temp1 temp2 Less elegant and more verbose, but works fine, as long as you make sure temp1 and temp2 don't exist before hand.

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  • How to automatically execute a shell script when logging into Ubuntu

    - by Mike Rowave
    How do I get a script to execute automatically when I log in? Not when the machine starts up, and not for all users, but only when I (or any specific user with the script) login via the GNOME UI. From reading elsewhere I thought it was .bash_profile in my home directory, but for me it has no effect. When I manually execute it in a terminal window by typing ~/.bash_profile it works, but it won't run automatically when I log in. I'm running Ubuntu 11.04. The file permission on my .bash_profile is -rwx------. No .bash_profile existed in my home directory before I created it today. I seem to remember older versions of Linux having a .profile file for each user, but that doesn't work either. How is it done? Do I need to configure something else to get the .bash_profile to work? Or does the per-user login script need to be in some other file?

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  • How do I detect if I'm in a 'full screen' bash shell or GUI terminal window?

    - by Nick T
    I have some code in my .bashrc that sets the terminal window title using the currently running command and it works great in Unity, where the terminal is in a window. However, when I'm logging in with the Ctrl + Alt + F1 terminal (whatever it's called), my prompt gets filled with garbage that is various escape sequences that set the (nonexistent) window title. How can I detect from within a bash script if I'm in one or the other?

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  • Unable to set variables in bash script in Mac OSX

    - by cohortq
    Hello! I am attempting to automate moving files from a folder to a new folder automatically every night using a bash script run from applescript on a schedule. I am attempting to write a bash script on Mac OSX, and it keeps failing. In short this is what I have (all my ECHOs are for error checking): !/bin/bash folder = "ABC" useracct = 'test' day = date "+%d" month = date "+%B" year = date "+%Y" folderToBeMoved = "/users/$useracct/Documents/Archive/Primetime.eyetv" newfoldername = "/Volumes/Media/Network/$folder/$month$day$year" ECHO "Network is $network" $network ECHO "day is $day" ECHO "Month is $month" ECHO "YEAR is $year" ECHO "source is $folderToBeMoved" ECHO "dest is $newfoldername" mkdir $newfoldername cp -R $folderToBeMoved $newfoldername if [-f $newfoldername/Primetime.eyetv]; then rm $folderToBeMoved; fi Now my first problem is that I cannot set variables at all. Even literal ones where I just make it equal some literal. All my echos come out blank. I cannot grab the day, month, or year either,it comes out blank as well. I get an error saying that -f is not found. I get an error saying there is an unexpected end of file. I made the file and did a chmod u+x scriptname.sh I'm not sure why nothing is working at all. I am very new to this bash script on OSX, and only have experience with windows vbscript. Any help would be great, thanks!

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  • Help with Cygwin bash file

    - by Mestika
    Hi, I have a bash file, which I’m trying to run in Cygwin on a Windows 7 platform, but I gives me some odd errors when doing so. The bash file works on my Linux system. The bach file looks like this: for ((r=0; r <10; r++)) netcat localhost 4444 < myfile.file & done wait but I’m getting an error for my for-loop. More precise it writes: ./tuning_test.bsh: line 1: syntax error near unexpected token `(' '/tuning_test.bsh: line 1: `?for ((r=0; r <10; r++)) I do not understand it because I was sure that I’ve a working bash file on my Linux. I even tried to find a for-loop example from a Linux-bash site and run it but with same error. I’m brand new to Cygwin and doesn’t know if it has some small quirks or some other thing I have to be aware of and I’ve tried to look through the documentation and FAQ on their homepage. Sincere Mestika

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  • Java's Scanner class: using left- and right buttons with Bash

    - by Bart K.
    I'm not too familiar with Linux/Bash, so I can't really find the right terms to search for. Take the snippet: public class Main { public static void main(String[] args) { java.util.Scanner keyboard = new java.util.Scanner(System.in); while(true) { System.out.print("$ "); String in = keyboard.nextLine(); if(in.equals("q")) break; System.out.println(" "+in); } } } If I run it on my Linux box using Bash, I can't use any of the arrow buttons (I'm only interested in the left- and right button, btw). For example, if I type "test" and then try to go back by pressing the left button, ^[[D appears instead of my cursor going back one place: $ test^[[D I've tried the newer Console class as well, but the end result is the same. On Windows' cmd.exe shell, I don't have this problem. So, the question is: is there a way to change my Java code so that I can use the arrow keys without Bash transforming them in sequences like ^[[D but actually move the cursor instead? I'm hoping that I can solve this on a "programming level". If this is not possible, then I guess I'd better try my luck on Superuser to see if there's something I need to change on my Bash console. Thanks in advance.

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  • Converting a bash script to python (small script)

    - by Mestika
    Hi, I’ve a bash script I’ve been using for a Linux environment but now I have to use it on a Windows platform and want to convert the bash script to a python script which I can run. The bash script is rather simple (I think) and I’ve tried to convert it by google by way around but can’t convert it successfully. The bash script looks like this: runs=5 queries=50 outfile=outputfile.txt date >> $outfile echo -e "\n---------------------------------" echo -e "\n----------- Normal --------------" echo -e "\n---------------------------------" echo -e "\n----------- Normal --------------" >> $outfile for ((r = 1; r < ($runs + 1); r++)) do echo -e "Run $r of $runs\n" db2 FLUSH PACKAGE CACHE DYNAMIC python reads.py -r1 -pquery1.sql -q$queries -shotelspec -k6 -a5 >> $outfile done The main command, the python read.py … etc. is another python file I’ve been given and have the arguments as you see. I know it is a lot to ask for, but it would really help me out if someone could convert this to a python script I can use or at least give me some hints and directions. Sincerely Mestika

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  • Can I do filename pattern matching in a bash script?

    - by Bob Bowden
    Can I do filename pattern matching in a bash script? "test" is a directory with the following files ... bob@bob-laptop:~/test$ ls exclude exclude1 exclude2 include1 include2 from the command line, if I want to exclude some of the files, I can do ... bob@bob-laptop:~/test$ echo !(exclude*) include1 include2 but, if I put that command in a script (named exclude) ... bob@bob-laptop:~/test$ cat exclude echo !(exclude*) when I execute it, I get an error ... bob@bob-laptop:~/test$ ./exclude ./exclude: line 1: syntax error near unexpected token (' ./exclude: line 1:echo !(exclude*)' I've tried every (I think) variation of escaping some, all or none of the special characters and I still get an error. What am I missing here? If I can't do this, would someone please be so kind as to explain why?

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