Watch given directory for changes, then execute a command

watch-and-exec.sh

#!/bin/bash

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# ======================================

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# =============

#  We are grassroot activists for social change, we respond to the needs of grassroot organizations,
#  check out those fantastic mutual aid initiatives:

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#    - International Workers Association (https://iwa-ait.org)
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#    Poland:
#    - Anarchistyczne FAQ (http://anarchizm.info) a translation of Anarchist FAQ
#      (https://theanarchistlibrary.org/library/the-anarchist-faq-editorial-collective-an-anarchist-faq)
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PATH_TO_WATCH=$1
COMMAND_TO_EXEC=$2

while inotifywait -r -e modify $PATH_TO_WATCH; do
    echo " >> File was changed, executing callback"
    eval $COMMAND_TO_EXEC
done