[[ -e $filename ]] - which man page to refer to these options
What does this do:
Can someone please guide me what does
a) local variable do
b) -z option stands for what?
c) what other options are there (like -n, or -e, .., which man page do i refer to go through these options?
d) what does that whole line checks for and do? [[ -z $logfile ]] && logfile=$AMS_LOGFILE
thanks
Amit
Moderator's Comments:
Please wrap your commands/samples in code tags, see how I wrapped them.
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