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current community chat Unix & Linux Unix & Linux Meta your communities Sign up or log in to customize your list. For example I use apt to install some software in Debian but I would like to know where it puts the files. would like to know that such query is logged or not or is there any possible to enable and log it.Thanks in advance. I once had a Unix system administrator who wrote a script for a production system containing the following 2 lines of code: # Example of a really bad idea cd $some_directory

up vote 118 down vote favorite 33 When calling execl(...), I get an errno=2. If the exit status is anything other than zero, then the program failed in some way. Unsubstantiated Appease Your Google Overlords: Draw the "G" Logo more hot questions question feed lang-bsh about us tour help blog chat data legal privacy policy work here advertising info mobile contact Is it possible to that linux save cdrom usage logs..??Kindly help,, Reply Link Srinivas Kumar May 31, 2013, 5:19 amHi,I need to find the history of particular id in aix server

echo "Example of error with line number and message" error_exit "$LINENO: An error has occurred." The use of the curly braces within the error_exit function is an example of parameter expansion. First (if s is not NULL and *s is not a null byte ('\0')) the argument string s is printed, followed by a colon and a blank. by Vivek Gite on July 17, 2006 last updated December 6, 2014 in Commands, File system, LinuxI am a new Linux user. Reply Link kumud January 31, 2008, 4:25 amwhere can i find the AT command logs.

Feel free to send those people a nice peer beating. –allyourcode Nov 25 '12 at 7:06 3 The problem is that perror doesn't tell you which macro equivalent the error share|improve this answer edited Feb 18 '15 at 0:09 Peter Mortensen 10.2k1369107 answered Feb 2 '09 at 16:50 dsm 8,3672963 1 I hate how the unix documentation don't associate constant Shotts, Jr. Security Patch SUPEE-8788 - Possible Problems?

You need be the root user to view or access log files on Linux or Unix like operating systems. How to overcome this?Thanks Reply Link Nix Craft March 12, 2014, 9:21 amRun command as root user.sudo tail -f /var/log/messagesOR su -tail -f /var/log/messagesSee Linux Run Command As Another User Reply linux logging init.d rc.d share|improve this question edited Dec 17 '11 at 17:17 quanta 36.5k683160 asked Dec 17 '11 at 16:51 McKAMEY 3451313 1 –quanta Dec 17 '11 at Tagged with: /var/log/messages, debian kernel, error logs, linux log, linux log file, linux log files, linux log files location, linux login logs, linux logs, log directory, log files, log files in

That usage is simply a style thing. if not, how can I capture the stdout/stderr from my init.d scripts? Now I've tweaked one of my scripts and it is failing. Why did Moody eat from the school sausages?

I want a perror() that prints the MACRO name so I can look up the bloody error in the man page! –DarwinSurvivor Feb 24 '13 at 1:45 add a comment| up more hot questions question feed lang-sh about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts Culture / Recreation The XSI-compliant strerror_r() function returns 0 on success. That's the intended behavior.

Implementation of a generic List Can Communism become a stable economic strategy? Is it plausible for my creature to have similar IQ as humans? Join them; it only takes a minute: Sign up How to know what the 'errno' means? In the United States is racial, ethnic, or national preference an acceptable hiring practice for departments or companies in some situations?

Sorry. share|improve this answer edited Jan 11 at 17:11 answered Oct 23 '13 at 16:19 Gilles 372k696751126 Recently I experimented a little and discovered a convenient way of fixing || trap 'err=$?; echo >&2 "Exiting on error $err"; exit $err' ERR. You should should always use symbolic error code constants in your code, not number literals.

Which is a useful feature when you're writing some common function that you will later source and use from other scripts. What (combination of) licenses is popular for public/shared proprietary software (“Feel free to contribute, but only we can make commercial use”)? will contain the exit status of the last command executed. Reply Link Naresh September 10, 2010, 7:00 amHi, I am new to Linux, Can u pls any one of u tell me how to copy files using "rcp" from the remote

Reply Link Madhana March 30, 2009, 12:29 pmIt's a fruitful information…Thanks a lot vivek Reply Link Sparrow August 22, 2009, 3:50 amHi,I want classify logs and store it in a database. It is also important that your scripts return a meaningful exit status when they finish. Thus, if a failing call is not immediately followed by a call to perror(), the value of errno should be saved. It worked as designed.

share|improve this answer answered Dec 17 '11 at 20:22 Nils 6,27911555 Thanks everyone for the variety of approaches. Please use the new version at LinuxCommand Learningtheshell Writingshellscripts Script library SuperMan pages Who, What, Where, Why Tips, News And Rants Previous | Contents | Next Errors and Signals and The wait builtin will return the exit code of the inner command, and now you're using || after wait, not the inner function, so set -e works properly inside the latter: Browse other questions tagged linux logging init.d rc.d or ask your own question.

Apart from portability, what are the benefits over ksh/bash/zsh's ERR trap? –Gilles Jan 11 at 17:07 Probably the only benefit is composability, as you don't risk to overwrite another