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<b_jonas> slashlearn greater//A greater than sign instructs the shell to send the output of the command to a file. Not very mnemonic, but a grater is the closest thing to a file that ASCII has.
author HackBot
date Wed, 06 Dec 2017 09:52:00 +0000
parents 6cd17a5c5808
children 42f2882255c3
line wrap: on
line source

sep="//"
[[ "$1" == ?*"$sep"* ]] || exit 1
topic="$(echo "${1%%$sep*}" | lowercase)"
stuff="${1#*$sep}"
perl -i -p -e 's/\n/ /' "wisdom/$topic"
echo "$stuff" >>"wisdom/$topic"
echo -n "Learned '$topic': "
cat "wisdom/$topic"