snipplets.dev/~/Bash/command_exists.sh

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2022-08-13 11:50:44 +03:00
#!/bin/bash
if ! [ -x "$(command -v git)" ]; then
echo 'Error: git is not installed.' >&2
exit 1
fi
if ! command -v crystal &> /dev/null
then
echo "<the_command> could not be found"
exit
fi