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Full Discussion: check for "cannot open file"
Top Forums UNIX for Dummies Questions & Answers check for "cannot open file" Post 302108446 by sb008 on Monday 26th of February 2007 05:29:05 PM
Old 02-26-2007
Quote:
Originally Posted by ssmith001
I keep getting an error of "unknown test operator"

These are the conditions that need to send the email:

1) file1 or file2 do not exist
2) file1 and file2 exist but are not readable
3) if file1 size != 0
4) if file2 size > 6
Ok, I made a mistake, I was calculating the size of files before knowing if they exist and are readable.

Code:
#!/usr/bin/ksh

dirname=/opt/manu/srv
f1=manumgrmdip2_7500.log
f2=manumgrmdip2_7500.pid
export HOST=`hostname`

typset -i f1size f2size

if [ ! -r ${dirname}/${f1} -o ! -r ${dirname}/${f2} ]
then
  echo "Either <$dirname/$f1> or <$dirname/$f1> does not exist or is not readable" | mailx -s "Missing files on Manugistics $HOST Server (MDIP2)" user@xyz.com
else 
  f1size=`wc -c ${dirname}/${f1}`
  f2size=`wc -c ${dirname}/${f2}`

  if [ ${f1size} -eq 0 -o ${f2size} -gt 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 < ${f1}
  fi
fi

If you still get an error message put "set -x" at the beginning of the script so you can see exactly which statement causes the error.

Code:
#!/usr/bin/ksh

set -x

dirname=/opt/manu/srv
......

 

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BASENAME(1)						    BSD General Commands Manual 					       BASENAME(1)

NAME
basename, dirname -- return filename or directory portion of pathname SYNOPSIS
basename string [suffix] basename [-a] [-s suffix] string [...] dirname string DESCRIPTION
The basename utility deletes any prefix ending with the last slash '/' character present in string (after first stripping trailing slashes), and a suffix, if given. The suffix is not stripped if it is identical to the remaining characters in string. The resulting filename is written to the standard output. A non-existent suffix is ignored. If -a is specified, then every argument is treated as a string as if basename were invoked with just one argument. If -s is specified, then the suffix is taken as its argument, and all other arguments are treated as a string. The dirname utility deletes the filename portion, beginning with the last slash '/' character to the end of string (after first stripping trailing slashes), and writes the result to the standard output. EXAMPLES
The following line sets the shell variable FOO to /usr/bin. FOO=`dirname /usr/bin/trail` DIAGNOSTICS
The basename and dirname utilities exit 0 on success, and >0 if an error occurs. SEE ALSO
csh(1), sh(1) STANDARDS
The basename and dirname utilities are expected to be IEEE Std 1003.2 (``POSIX.2'') compatible. BSD
April 18, 1994 BSD
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