So I have a question about get opts in bash. I want to get the value of the arguments if they are present but if they are not present to use a default value. So the script should take a directory and an integer but if they aren't specified then $PWD and 3 should be default values. Here is what
while getopts "hd:l:" opt; do
case $opt in
d ) directory=$OPTARG;;
l ) depth=$OPTARG;;
h ) usage
exit 0;;
\? ) usage
exit 1;;
esac
You can just provide default value before while
loop:
directory=mydir
depth=123
while getopts "hd:l:" opt; do
case $opt in
d ) directory=$OPTARG;;
l ) depth=$OPTARG;;
h ) usage
exit 0;;
*) usage
exit 1;;
esac
done
echo "<$directory> <$depth>"