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Full Discussion: check for "cannot open file"
Top Forums UNIX for Dummies Questions & Answers check for "cannot open file" Post 302108431 by ssmith001 on Monday 26th of February 2007 12:29:32 PM
Old 02-26-2007
check for "cannot open file"

I have a small script that checks to see if a file exists and that it has data in it. I also need to check if the file can be opened. I had an issue today where the file it checks could not be opened and my script did not catch it. How do I check to see if it cannot be opened?

Code:
dirname=/opt/manu/srv
f1=manumgrmdip2_7500.log
f2=manumgrmdip2_7500.pid
export HOST=`hostname`
f1size=`wc -c $dirname/manumgrmdip2_7500.log | cut -f1 -d " "`
f2size=`wc -c $dirname/manumgrmdip2_7500.pid | cut -f1 -d " "`

if [[ ! -f $dirname/$f1 || ! -f $dirname/$f2 ]] ; then
      echo "Either <$dirname/$f1> or <$dirname/$f1> does not exist" | mailx -s "Missing files on Manugistics $HOST Server (MDIP2)" user@xyz.com
else if (( $(wc -c < $dirname/$f1) != 0 )) || (( $(wc -c < $dirname/$f2) > 6 )) ; then
      echo "The size of $dirname/$f1 size = $f1size, and $dirname/$f2 = $f2size'" | mailx -s "Error with file sizes on Manugistics $HOST Server (MDIP2)" user@xyz.com < manumgrmdip2_7500.log
     fi;
fi;

 

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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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