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Full Discussion: Regarding Redirecting a command's default error message in script
Top Forums Shell Programming and Scripting Regarding Redirecting a command's default error message in script Post 302492011 by raj100 on Saturday 29th of January 2011 04:58:17 AM
Old 01-29-2011
MySQL Thank you Methyl. It worked well. This has really helped me. Thanks again.
Quote:
Originally Posted by methyl
Some changes.
Redirect both STDOUT (1) and STDERR (2).
Change the "for" into a "while" because "for" can break with a large number of arguments.
Save the value of $? immediately after executing the command.
Simplify the if test.

Code:
cat list | while read i
do
    id $i 1>/dev/null 2>/dev/null ; ERROR=$?
    if [ ${ERROR} -eq 0 ]
    then
         echo "ID $i exists"
    else
         echo "$i Does not exist" 
    fi
done

 

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LEARN ABOUT DEBIAN

checksecurity

CHECKSECURITY(8)					      System Manager's Manual						  CHECKSECURITY(8)

NAME

       checksecurity - Run a collection of simple system checks

SYNOPSIS

       checksecurity

DESCRIPTION

       The checksecurity command runs a small collection of simple system checks which are designed to catch a few common security issues.  check-
       security is run by cron in a daily basis.

CONFIGURATION

       The checksecurity.conf file defines several configuration variables: MAILTO, CHECK_DISKFREE, CHECK_PASSWD and CHECK_SETUID LOGDIR.  Each is
       described below.

       The  checksecurity program works with a collection of plugins which are located in /usr/share/checksecurity and are configured individually
       by their own configuration file.

       CHECK_PASSWD If this is set to TRUE then the check-passwd script will be invoked.  This script is designed to report upon  system  accounts
       which  have  no passwords.  CHECK_DISKFREE If this is set to TRUE then the check-diskfree script will be invoked and will allow an alert to
       be sent if there is any mounted partition is running short on disk space.  CHECK_SETUID If this is set to TRUE then the check-setuid script
       will be invoked, this will compare the setuid binaries upon the system to those that existed previously and show the differences.

FILES

       /etc/checksecurity.conf
	      checksecurity configuration file

SEE-ALSO
       See also check-diskfree(8), check-setuid(8), and check-passwd(8)

Debian Linux							  2 February 1997						  CHECKSECURITY(8)
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