I'm trying to store a result of a command into a variable so I can display it nicely along with some text in one long not have it display the output and then newline then my text, in my csh script.
#! /bin/csh -f
if ("$1" == "-f" && $#argv == 1 ) then
grep 'su root' /var/adm/messages.[0-9] | cut -c 21-250
grep 'su root' /var/adm/messages
else if( $#argv > 0 ) then
echo "Usage : [-f]"
else
grep 'su root' /var/adm/messages.[0-9] /var/adm/messages | wc -l
printf "failed su attempts between Nov 02 and Oct 28\n"
endif
this command in the script
grep 'su root' /var/adm/messages.[0-9] /var/adm/messages | wc -l
gives me 21 when i run it, and i want 21 to be stored in a variable.
so i can just display the output of
21 failed su attempts between Nov 02 and Oct 28
and not
21
failed su attempts between Nov 02 and Oct 28
or if theres an easier way that doesn't involve variables open to that too.
You can use set and backticks (``). Something like
set count=`grep 'su root' /var/adm/messages.[0-9] /var/adm/messages | wc -l`
printf "$count failed su attempts between Nov 02 and Oct 28\n"
or
printf "%s failed su attempts between Nov 02 and Oct 28\n" "$count"
or without a variable, like
printf "%s failed su attempts between Nov 02 and Oct 28\n" \
`grep 'su root' /var/adm/messages.[0-9] /var/adm/messages | wc -l`
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