Bash script to execute a given command in all subdirectories of the current directory

fesd

#!/usr/bin/env bash

set -e
trap "exit" INT

USAGE="Usage:
    fesd <command>"

# show help if requested
if [ "x$1" == "x-h" ] || [ "x$1" == "x-?" ] || [ "x$1" == "x--help" ]; then
    echo "Execute command in each subdirectory of current directory."
    echo "$USAGE"
    exit 0
fi

# assert arguments supplied
if [ "x$1" == "x"  ]; then
    echo "No input, 'fesd -h' for help"
    echo "$USAGE"
    exit 1
fi

# execute commands
for DIR in $(find . -maxdepth 1 -mindepth 1 -type d -not -path '*/.*' | sed "s|^\./||" | sort); do
    echo "======== entering $DIR ========"
    (cd "$DIR" && bash -c "$*")
    echo
done