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  • Probelm After Changing password in ubuntu

    - by Narendra
    Hi All, I am using ubuntu system which uses openldap for user login authentication. For changing my login password i used "$sudo passwd" and changed it. (of course the password given is same as old one). Then onwards when i trying to run "apt" command it showing command not found. and for some other programs it showing segmentation fault. Can any one tell me why I am facing issue and how to solve this.

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  • Good ways to restart all the computers in a remote cluster?

    - by vgm64
    I have a cluster that I manage and from time to time I get emails from each node (and head node) begging to be restarted after an automatic upgrade. Currently, my best solution so far is a shell script like: $> cat cluster_reboot.sh ssh [email protected] reboot ssh [email protected] reboot ssh [email protected] reboot ssh [email protected] reboot ssh [email protected] reboot ssh [email protected] reboot I end up just typing the root password six times, but it works, I guess. Is there a better way? Can I force the head node to reboot the computers for me?

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  • script to recursively check for and select dependencies

    - by rp.sullivan
    I have written a script that does this but it is one of my first scripts ever so i am sure there is a better way:) Let me know how you would go about doing this. I'm looking for a simple yet efficient way to do this. Here is some important background info: ( It might be a little confusing but hopefully by the end it will make sense. ) 1) This image shows the structure/location of the relevant dirs and files. 2) The packages.file located at ./config/default/config/packages is a space delimited file. field5 is the "package name" which i will call $a for explanations sake. field4 is the name of the dir containing the $a.dir i will call $b field1 shows if the package is selected or not, "X"(capital x) for selected and "O"(capital o as in orange) for not selected. Here is an example of what the packages.file might contain: ... X ---3------ 104.800 database gdbm 1.8.3 / base/library CROSS 0 O -1---5---- 105.000 base libiconv 1.13.1 / base/tool CROSS 0 X 01---5---- 105.000 base pkgconfig 0.25 / base/tool CROSS 0 X -1-3------ 105.000 base texinfo 4.13a / base/tool CROSS DIETLIBC 0 O -----5---- 105.000 develop duma 2_5_15 / base/development CROSS NOPARALLEL 0 O -----5---- 105.000 develop electricfence 2_4_13 / base/development CROSS 0 O -----5---- 105.000 develop gnupth 2.0.7 / extra/development CROSS NOPARALLEL FPIC-QUIRK 0 ... 3) For almost every package listed in the "packages.file" there is a corresponding ".cache file" The .cache file for package $a would be located at ./package/$b/$a/$a.cache The .cache files contain a list of dependencies for that particular package. Here is an example of one of the .cache files might look like. Note that the dependencies are field2 of lines containing "[DEP]" These dependencies are all names of packages in the "package.file" [TIMESTAMP] 1134178701 Sat Dec 10 02:38:21 2005 [BUILDTIME] 295 (9) [SIZE] 11.64 MB, 191 files [DEP] 00-dirtree [DEP] bash [DEP] binutils [DEP] bzip2 [DEP] cf [DEP] coreutils ... So with all that in mind... I'm looking for a shell script that: From within the "main dir" Looks at the ./config/default/config/packages file and finds the "selected" packages and reads the corresponding .cache Then compiles a list of dependencies that excludes the already selected packages Then selects the dependencies (by changing field1 to X) in the ./config/default/config/packages file and repeats until all the dependencies are met Note: The script will ultimately end up in the "scripts dir" and be called from the "main dir". If this is not clear let me know what need clarification. For those interested I'm playing around with T2 SDE. If you are into playing around with linux it might be worth taking a look.

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  • Prevent scp from copying local files?

    - by ashcatch
    I just read the Linux scp command issue question and it reminded me that I regularily forget to specify the colon in the host part of a scp command, and thus copying a file locally instead of copying to a remote host, e.g. I do scp foo host instead of scp foo host: But I never use scp to copy a file locally. So I wonder if there is a way to make scp fail if both (the source and destination) arguments refer to local files.

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  • With a username passed to a script, find the user's home directory

    - by Clinton Blackmore
    I am writing a script that gets called when a user logs in and check if a certain folder exists or is a broken symlink. (This is on a Mac OS X system, but the question is purely bash). It is not elegant, and it is not working, but right now it looks like this: #!/bin/bash # Often users have a messed up cache folder -- one that was redirected # but now is just a broken symlink. This script checks to see if # the cache folder is all right, and if not, deletes it # so that the system can recreate it. USERNAME=$3 if [ "$USERNAME" == "" ] ; then echo "This script must be run at login!" >&2 exit 1 fi DIR="~$USERNAME/Library/Caches" cd $DIR || rm $DIR && echo "Removed misdirected Cache folder" && exit 0 echo "Cache folder was fine." The crux of the problem is that the tilde expansion is not working as I'd like. Let us say that I have a user named george, and that his home folder is /a/path/to/georges_home. If, at a shell, I type: cd ~george it takes me to the appropriate directory. If I type: HOME_DIR=~george echo $HOME_DIR It gives me: /a/path/to/georges_home However, if I try to use a variable, it does not work: USERNAME="george" cd ~$USERNAME -bash: cd: ~george: No such file or directory I've tried using quotes and backticks, but can't figure out how to make it expand properly. How do I make this work?

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  • NIS: which mechanism hides shadow.byname for unpriviledged users?

    - by Mark Salzer
    On some Linux box (SLES 11.1) which is a NIS client I can do as root: ypcat shadow.byname and get output, i.e. some lines with the encrypted passwords, amongst other information. On the same Linux box, if I run the same command as unpriviledged user, I get No such map shadow.byname. Reason: No such map in server's domain Now I am surprised. My good old knowlege says that shadow passwords in NIS are absurd because there is no access control or authentication in the protocol and thus every (unpriviledged) user can access the shadow map and thereby obtain the encrypted passwords. Obviously we have a different picture here. Unfortunately I don't have access to the NIS server to figure out what is happening. My only guess is that the NIS master gives the map only to clients conection from a priviledged port (1024), but this is only an uneducated guess. What mechanisms are there in current NIS implementations to lead to a behavior like the above? How "secure" are they? Can the be circumvented easily? Or are shadow passwords in NIS as secure as the good old shadow files?

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  • Expanding globs in xargs

    - by Craig
    I have a directory like this mkdir test cd test touch file{0,1}.txt otherfile{0,1}.txt stuff{0,1}.txt I want to run some command such as ls on certain types of files in the directory and have the * (glob) expand to all possibilities for the filename. echo 'file otherfile' | tr ' ' '\n' | xargs -I % ls %*.txt This command does not expand the glob and tries to look for the literal 'file*.txt' How do I write a similar command that expands the globs? (I want to use xargs so the command can be run in parallel)

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  • Alternatives to native LDAP

    - by Matt
    We've implemented an LDAP to NIS solution and have begun transitioning some systems to native LDAP binding for authentication and automount maps. Unfortunately we have a very mixed environment with more than 20 *nix environments. The setup for each variant is of course unique and has required various workarounds to get full functionality. We're now at the point where we're willing to revisit the solution and possibly migrate toward something like Likewise (http://www.likewise.org), but would like to know what others are using to solve this problem.

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  • bash vs sh | What is the difference

    - by Saif Bechan
    In using i see 2 types of code #!/usr/bin/sh and #!/user/bin/bash I have Googled this and the opinions vary a lot. The explanation I have seen on most websites is that sh is older than bash, and that there is no real difference. Does someone know the difference between these and can give a practical example when to use either one of them. I highly doubt that there is no real difference, because then having to things that do the exact same thing would be just

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  • How do I keep folders synced and backed up between two macs using a Linux NAS (rsync?)

    - by Hultner
    I've got two primary computers, one Mac Pro and one MacBook Pro for when I'm on the go. I've also got a Linux sever which also acts as NAS. Currently I backup the entire computers to an external drive with Time Machine which is rather useless and doesn't sync anything. What I really want to do is to keep my important files synced between both computers and my NAS (which is running RAID 5), that way I'm not backing up easily replaceable systemfiles and I've got all my important files in 3 places where two of them are running raid so at least 5 drives would have to crash at the same time before actual data loss occur. Folders I want to keep synced is basically my photo, documents, development, mamp and work folders and then I want to keep the user library folder backed up but not synced. I'm thinking that I'd have to use rsync but don't know how. Before suggesting Dropbox and similar suggestions I don't want to use them because of several reasons some of them being security (Dropbox obviously proved this), Speed (sometimes I'll sync gigabytes of data and that will be significantly faster locally and probably even through VPN as I have a Gigabit pipe), Space (space on my NAS is cheap and only practically limited by my needs), reliability (even if my internet were to go down I still need to be able to keep my files synced incase I'd need to go somewhere on the fly), price (I already have all the hardware and for the amount of gigabytes and bandwidth I'd need I doubt that there's any free or cheap service). Those are my main reason for wanting to keep it locally. I'm sorry for any spelling or grammatical mistakes that I've might have done. I'm writing this on my smartphone from a shaky train and English isn't my mother tongue. I gratefully appreciate any answers even if only partly solving my problem.

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  • What version of SCO Open Server are guys using out there and on what hardware?

    - by Gath
    I have some old applications which are running on SCO Open Server 5.0.5, and i would love to move them to SCO Open Server 5.0.7 and on modern hardware(servers), currently am running SCO on old IBM PL 300 personal computer, on 92MB Memory, one processor, and it has been serving the clients pretty well. Now i have New Modern IBM xseries Servers and i would love to migrate the same applications to those new servers. Problem is, SCO 5.0.5 is unable to detect some of the hardware components in the new servers. I read somewhere that SCO 5.0.7 is able to detect the newer hardware even the USB ports etc. Is there anyone running SCO Openserver out there, and on what hardware architecture are they running on? Gath

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  • Find and hide file extension

    - by Daveo
    I am trying to find all files that have the same filename (excluding the file extension) that occur 3 times. I also need the full path to the file. What I have currently is #get file without extension alias lse="ls -1R | sed -e 's/\.[a-zA-Z]*$//'" #print out the current dir and get files occuring 3 times lse | sed "s;^;`pwd`/;" | sort | uniq -c | grep " 3 " This runs howver pwd prints the folder I ran the command from not the path to the file. So I tried find find . -type f | sed "s#^.#$(pwd)#" | sort | uniq -c This runs but includes the file extension. When I try to add sed -e 's/\.[a-zA-Z]*$//'" I get errors as I am not sure how to combine the two sed commands and I cannot seem to pipe a second time to sed? so what I am trying to do is find . -type f | sed "s#^.#$(pwd)#" | sed -e 's/\.[a-zA-Z]*$//'"| sort | uniq -c | grep " 3 " but this does not run.

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  • Can't write to file - 'Operation not permitted' WITH sudo

    - by charliehorse55
    I am having trouble writing to a few files on an external HD. I am using it to store media files as well as my time machine backup. The drive is formatted as HFS+ Journaled, and other files on the drive can be written successfully. Additionally, the time machine backup is working perfectly. Permissions for the file: $ ls -le -@ Parks\ and\ Recreation\ -\ S01E01.avi -rw-rw-rw-@ 1 evantandersen staff 182950496 22 May 2009 Parks and Recreation - S01E01.avi com.apple.FinderInfo 32 Things I have already tried: sudo chflags -N sudo chown myusername sudo chown 666 sudo chgrp staff Checked that the file is not locked (get info in finder) Why can't I modify that file? Even with sudo I can't modify it at all.

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  • using monit to restart custom daemon

    - by Jenis Sam
    I wrote a php daemon using system daemon pear class. How do I use monit to restart it when it fails? I have the following code in my monit config file: check process merge with pidfile /var/www/merge/merge.pid group 1000 start program = "/etc/init.d/merge start" stop program = "/etc/init.d/merge stop" IF CHANGED PID then restart My goal is solely if the daemon fails (stops running because of an error), I want monit to make it start running again.

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  • Pass the output of ls to diff

    - by joachim
    I have one file that contains a list of files from a server, and a local folder that I compare to that manifest. Obviously, I do 'ls -1 listing_local' and then diff that file with listing_server. But is it possible to diff the manifest and the output of ls immediately to the diff command?

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  • nothing in dev folder

    - by 4321bust
    hi, i'm new to this so bear with me plz. im attempting to set up git on my mac and need to be using my dev folder. however, there seems to be nothing in my folder ("zero KB on disk") with no sub directories listed. other hidden directories are intact. i've never really gone this deep into things before so i'm not sure how/why anything would previously have been deleted. any help greatly appreciated.

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  • Executing local script/command on remote server

    - by Ian McGrath
    I have a command that I want to run on machine B from machine A. If I run the command on machine B locally, it works fine. Here is the command: for n in `find /data1/ -name 'ini*.ext'` ; do echo cp $n "`dirname $n `/` basename $n .ext`"; done From machine A, I issue this command ssh user@machineB for n in `find /data1/ -name 'ini*jsem'` ; do echo cp $n "`dirname $n `/` basename $n .jsem`"; done But I get error syntax error near unexpected token do What is wrong? I think it has something to do with double quotes, single quotes, semi colon because executing command ssh user@machineB ls works fine. So not issue of authentication or something else. Thanks

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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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  • using sed, how to change the text on line seven to read seventh?

    - by Steve
    using sed, how to change the text on line seven to read seventh? Steve Blenheim:238-923-7366:95 Latham Lane, Easton, PA 83755:11/12/56:20300 Betty Boop:245-836-8357:635 Cutesy Lane, Hollywood, CA 91464:6/23/23:14500 Igor Chevsky:385-375-8395:3567 Populus Place, Caldwell, NJ 23875:6/18/68:23400 Norma Corder:397-857-2735:74 Pine Street, Dearborn, MI 23874:3/28/45:245700 Jennifer Cowan:548-834-2348:583 Laurel Ave., Kingsville, TX 83745:10/1/35:58900 Jon DeLoach:408-253-3122:123 Park St., San Jose, CA 04086:7/25/53:85100 Karen Evich:284-758-2857:23 Edgecliff Place, Lincoln, NB 92743:7/25/53:85100 Fred Fardbarkle:674-843-1385:20 Parak Lane, Duluth, MN 23850:4/12/23:780900 Lori Gortz:327-832-5728:3465 Mirlo Street, Peabody, MA 34756:10/2/65:35200 Paco Gutierrez:835-365-1284:454 Easy Street, Decatur, IL 75732:2/28/53:123500 Ephram Hardy:293-259-5395:235 CarltonLane, Joliet, IL 73858:8/12/20:56700

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  • Log centralization, display, transport and aggregation at scale v2

    - by Eric DANNIELOU
    This is a duplicate question of Log transport and aggregation at scale and http://stackoverflow.com/questions/1737693/whats-the-best-practice-for-centralised-logging, but the answers might differ now : The softwares described in 2009 may have changed since (for example Octopussy evolved from version 0.9 to 1.0.5). Rsyslog has become the default on most linux distro. Requirements have changed (security, software configuration management, ...). I'd like to ask the following questions : How do you centralize, display and archive system logs? How would you like to do it now if you had to? Most linux distro use rsyslog nowadays, which can provide reliable log transport. But some older unices, network devices and maybe windows box still use old udp rfc-style transport. How did you manage to get reliable transport? Storing logs for a few months can represent a huge amount of disk space. How do you store them? rdbms? Compressed and encrypted text files?

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  • Postfix on Snow Leopard unable to send MIME emails, including header contents in message body

    - by devvy
    I configured postfix on snow leopard by adding the following line to /etc/hostconfig: MAILSERVER=-YES- I then configured postfix to relay through my ISP's SMTP server. I added the following two lines in their respective places within /etc/postfix/main.cf: myhostname = 1and1.com relayhost = shawmail.vc.shawcable.net I then have a simple PHP mail function wrapper as follows: send_email("[email protected]", "[email protected]", "Test Email", "<p>This is a simple HTML email</p>"); echo "Done"; function send_email($from,$to,$subject,$message){ $header="From: <".$from."> "; $header.= 'MIME-Version: 1.0' . " "; $header.= 'Content-type: text/html; charset=iso-8859-1' . " "; $send_mail=mail($to,$subject,$message,$header); if(!$send_mail){ echo "ERROR"; } } With this, I am receiving an e-mail that appears to be improperly formatted. The message header is showing up in the body of the e-mail. The raw message content is as follows: Return-Path: <[email protected]> Delivery-Date: Tue, 27 Apr 2010 18:12:48 -0400 Received: from idcmail-mo2no.shaw.ca (idcmail-mo2no.shaw.ca [64.59.134.9]) by mx.perfora.net (node=mxus2) with ESMTP (Nemesis) id 0M4XlU-1NCtC81GVY-00z5UN for [email protected]; Tue, 27 Apr 2010 18:12:48 -0400 Message-Id: <[email protected]> Received: from pd6ml3no-ssvc.prod.shaw.ca ([10.0.153.149]) by pd6mo1no-svcs.prod.shaw.ca with ESMTP; 27 Apr 2010 16:12:47 -0600 X-Cloudmark-SP-Filtered: true X-Cloudmark-SP-Result: v=1.0 c=1 a=VphdPIyG4kEA:10 a=hATtCjKilyj9ZF5m5A62ag==:17 a=mC_jT1gcAAAA:8 a=QLyc3QejAAAA:8 a=DGW4GvdtALggLTu6w9AA:9 a=KbDtEDGyCi7QHcNhDYYwsF92SU8A:4 a=uch7kV7NfGgA:10 a=5ZEL1eDBWGAA:10 Received: from unknown (HELO 1and1.com) ([24.84.196.104]) by pd6ml3no-dmz.prod.shaw.ca with ESMTP; 27 Apr 2010 16:12:48 -0600 Received: by 1and1.com (Postfix, from userid 70) id BB08D14ECFC; Tue, 27 Apr 2010 15:12:47 -0700 (PDT) To: [email protected] Subject: Test Email X-PHP-Originating-Script: 501:test.php Date: Tue, 27 Apr 2010 18:12:48 -0400 X-UI-Junk: AutoMaybeJunk +30 (SPA); V01:LYI2BGRt:7TwGx5jxe8cylj5nOTae9JQXYqoWvG2w4ZSfwYCXmHCH/5vVNCE fRD7wNNM86txwLDTO522ZNxyNHhvJUK9d2buMQuAUCMoea2jJHaDdtRgkGxNSkO2 v6svm0LsZikLMqRErHtBCYEWIgxp2bl0W3oA3nIbtfp3li0kta27g/ZjoXcgz5Sw B8lEqWBqKWMSta1mCM+XD/RbWVsjr+LqTKg== Envelope-To: [email protected] From: <[email protected]> MIME-Version: 1.0 Content-type: text/html; charset=iso-8859-1 Message-Id: <[email protected]> Date: Tue, 27 Apr 2010 15:12:47 -0700 (PDT) <p>This is a simple HTML email</p> And here are the contents of my /var/log/mail.log file after sending the email: Apr 27 15:29:01 User-iMac postfix/qmgr[705]: 74B1514EDDF: removed Apr 27 15:29:30 User-iMac postfix/pickup[704]: 25FBC14EDF0: uid=70 from=<_www> Apr 27 15:29:30 User-iMac postfix/master[758]: fatal: open lock file pid/master.pid: unable to set exclusive lock: Resource temporarily unavailable Apr 27 15:29:30 User-iMac postfix/cleanup[745]: 25FBC14EDF0: message-id=<[email protected]> Apr 27 15:29:30 User-iMac postfix/qmgr[705]: 25FBC14EDF0: from=<[email protected]>, size=423, nrcpt=1 (queue active) Apr 27 15:29:30 User-iMac postfix/smtp[747]: 25FBC14EDF0: to=<[email protected]>, relay=shawmail.vc.shawcable.net[64.59.128.135]:25, delay=0.21, delays=0.01/0/0.1/0.1, dsn=2.0.0, status=sent (250 ok: Message 25784419 accepted) Apr 27 15:29:30 User-iMac postfix/qmgr[705]: 25FBC14EDF0: removed Two other people in the office have followed the exact same process and are running the exact same script, version of snow leopard, php, etc. and everything is working fine for them. I've even copied their config files to my machine, restarted postfix, restarted apache, all to no avail. Does anyone know what steps I could take to resolve the issue? This is boggling my mind... Thanks

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