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Top Forums Shell Programming and Scripting How to capture actual error message when a command fails to execute Post 302310732 by giannicello on Sunday 26th of April 2009 09:21:33 PM
Old 04-26-2009
It sounds like you just want to capture the value of '$?':

Code:
ls -l abc.txt >/dev/null
rc=$?
if [[ $rc -ne 0 ]]; then
  echo "Error was: $rc" >> errorlog.txt
fi

 

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elcsd.conf(5)							File Formats Manual						     elcsd.conf(5)

Name
       elcsd.conf - error logging configuration file

Description
       The  file  contains information used by the daemon to configure error logging for the system.  The system manager maintains this file.  The
       error logging daemon is dependent on the current order of the entries in the file.  Do not change the order.

       The information in the file shows any defaults and describes what you can enter.  A newline is used to delimit each entry in  the  file,  a
       null entry consists of a newline alone, and comments begin with #.
       #
       #    elcsd - errlog configuration file
       #

       {	   # delimiter DON'T remove or comment out!
       1	   # status 1-local,2-logrem,4-remlog,5-remlog+priloglocal
		   # errlog file size limit num. of blocks
       /usr/adm/syserr # errlog dir. path
		   # backup errlog dir. path
       /	   # single user errlog dir. path
       /usr/adm/syserr # log remote hosts errlog dir. path
		   # remote hostname to log to
       }	   # delimiter DON'T remove or comment out!
       #  hosts to log :S - separate file or :R - remotes file (together)
       remote1:S
       remote2:S
       #remote3:S	   # disabled
       remote4:S
	  .
	  .
	  .
       The status line of the file describes where you can log error packets, also called error messages:

	    Logs error packets locally =
		   1, the default.

	    Logs error packets from a remote system or systems to the local machine =
		   2.

	    Logs local and remote error packets locally =
		   3.

	    Logs error packets from the local system to a remote system =
		   4.

	    Logs error packets from the local system remotely and logs high
		   priority messages locally = 5.

       The  errorlog  file  size  defines  the	maximum size of an errorlog file.  If disk space is limited, you can specify the maximum number of
       blocks (512 bytes each) you want the errorlog file to be.  If you do not specify the maximum number of blocks, the system will  notify  you
       when the file system is 98% full.

       The  default  errorlog  directory path is You can direct error packets to a different directory; if you do, you must change the default for
       also. For further information, see

       If the error-logging daemon cannot write to the primary errorlog directory path, it attempts to log to the backup errorlog  directory  path
       automatically.

       The  root  directory  is  the default for the single-user errorlog directory path.  When the system makes the transition to multiuser mode,
       errors logged in single-user mode are transferred to the default errorlog directory path  You  can  direct  single-user	error  packets	to
       another directory.

       To log error packets from a remote system locally, set up an errorlog directory path on the local system.  The default is

       Errorlog  packets  from	remote systems can be logged to separate files or to one file.	S sets up a separate errorlog file for each remote
       system that logs locally.  R logs packets from the corresponding remote system to the file syserr.remotes.  The default is S.

Restrictions
       You must have superuser privileges to change the file.  However, anyone can view the file.

Files
       elcsd daemon messages

See Also
       elcsd(8), eli(8), uerf(8)
       Guide to the Error Logger System

																     elcsd.conf(5)
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