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I have specified a variable like this in shell script,

organisation="${organisation:-'$1/'}"

I have passed $1 as "repo" while executing this script, then organisation variable is echoed as "repo/". without passing $1 it's "/", Which i don't want.

My Question is i want this variable to print null if $1 is not passed or print "repo/" if $1 is passed.

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1 Answer 1

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This will assign organization to $1/ if $1 was passed to the script and set it to empty otherwise:

[ "$1" ] && organization=$1/ || organization=

[ "$1" ] tests to see if $1 is empty or not. If it is not empty, then [ "$1" ] returns true and the command after && is executed. If it is false, the command after || is executed.

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