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\| is GNU sed.
Standard sed is either
sed -n '/chuser \"gecos=/{s/^ *skipping: //;s/ (TESTMODE) *$//;p;}' modify.LOG | sort -u | ksh -vor
sed '/chuser \"gecos=/!d;s/^ *skipping: //;s/ (TESTMODE)...

In principle you can use any process which output are code-lines and pipe that in ksh (or any other shell i know, for that matter):

typeset -i iCnt=0

while [ $iCnt -le 10 ] ; do
print -...

Not sure if I understood your requirements correctly, but this should do the job:sed -nr '/chuser \"gecos=/ s/skipping: |\(TESTMODE\)//gp' modify.LOG | sort -u | tee /dev/tty | sh
You could use ksh...

See also answer #4

This is bad:

printf "${some_arbitrary_variable}\n"

This is how it's intended to be used:

printf "%s\n" "${some_arbitary_varible}"

Perhaps something like :

find / -type f -name '*.sh' -exec head -1 {} /dev/null \; | awk '/bash/ { print file } { file = $0 } '

If not too many matching lines, store them in a variable!

special=`grep somestring somefile`
if [ -n "$special" ]
then
echo "$special" | mail ...
fi
---------- Post updated at 12:58 PM...

your problem solved...
tryvar=$(grep somestring somefile) && [[ ! -z "${var}" ]] && echo "${var}"|mailx -s "Found something" email@mycomp.com
Courtesy : Pilnet