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Shell Programming and Scripting

Ksh: Send a mail in case grep finds something

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Top Forums Shell Programming and Scripting Ksh: Send a mail in case grep finds something
# 8  
Old 09-24-2014
your problem solved...
try
Code:
var=$(grep somestring somefile) && [[ ! -z "${var}" ]] &&  echo "${var}"|mailx -s "Found something" email@mycomp.com

Courtesy : Pilnet
This User Gave Thanks to Makarand Dodmis For This Post:
Cochise
# 9  
Old 09-24-2014
Thanks, but the result from grep may have multiple lines, that will be clutched together when stored in one variable.
# 10  
Old 09-24-2014
If not too many matching lines, store them in a variable!
Code:
special=`grep somestring somefile`
if [ -n "$special" ]
then
  echo "$special" | mail ...
fi

---------- Post updated at 12:58 PM ---------- Previous update was at 12:35 PM ----------

Just seeing this is in principal the same as the previous answer.
No, the shell does not clutch anything together.
An echo $var does a reformatting, but not an echo "$var"
This User Gave Thanks to MadeInGermany For This Post:
Cochise
# 11  
Old 09-25-2014
Outch, sorry Makarand, I missed that small difference the double quotes make around the variable.
Thanks (from Germany), also to "Made in Germany" for pointing that out.

Makarand's solution can even be abbreviated, as grep gives returncode 0 if it was successful (and 1 if not):

Code:
var=$(grep somestring somefile) &&  echo "$var"|mailx -s "Found something" email@mycomp.com

Does anybody know where the limit is for the size of a variable (in ksh 88)?
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