You didn't say which version of UNIX you're using and you didn't say which version of ksh you're using. If you just want to use ksh and wc (instead of awk), you can also try the following:

Code:

#!/bin/ksh
#set -xv
err_log="err_log"
err_list="err_list"
feed_cnt=$(wc -l < "$err_log")
err_tol=$(((feed_cnt + 25) / 50))
# grep -iFf "$err_list" "$err_log"
err_cnt=$(grep -iFcf "$err_list" "$err_log")
if [ "$err_cnt" -gt "$err_tol" ]
then
	echo "Errors exceed the tolerance level"
	exit 1
fi

Note that Aia's awk script looks for exact (case sensitive) full line matches; the code above looks for case insensitive matches where the complete contents of any line from err_list appears anywhere on a line in err_log.

If you want the behavior of the script above, but want to use awk instead, the changes to Aia's awk script to get that behavior are minor.

Since you didn't give us any sample data, I tried to match the options you gave to grep. But, I assumed you were looking for fixed strings rather than having a list of basic regular expressions in err_list.

If we guessed wrong, give us details of your real requirements.

If you're using a 1993 or later version of ksh, we can use floating point arithmetic to compute err_tol instead of playing games with rounding using integer arithmetic.

If you have an old UNIX system with a grep that doesn't accept the -Foption, change grep -iFcf to fgrep -icf.