bin-scripts/new-script at master · drewbarontini/bin-scripts · GitHub

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#!/usr/bin/env bash
# *************************************
#
#   New Script
#   -> Create an executable shell script
#
# -------------------------------------
#   Usage
# -------------------------------------
#
#  `new-script bin/script-name` - creates a new script called 'script-name'
#
# *************************************

# -------------------------------------
#   Errors
# -------------------------------------

set -o errexit
set -o nounset
set -o pipefail

# -------------------------------------
#   Error Handling
# -------------------------------------

# Exit if file already exists
[ -e "$1" ] && echo "$1 already exists" && exit

# -------------------------------------
#   Main
# -------------------------------------

if (( "$#" == 1 )); then

  echo '#!/usr/bin/env bash' >> "$1"

else

  echo "#!/usr/bin/env $2" >> "$1"

fi

chmod +x "$1"