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@Bachsau
Last active July 18, 2020 12:04
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What would you like to do?
Bash history backup script
#!/bin/bash --login
# Make a backup of the user's Bash history
if [ -z "${HISTFILE}" ]; then
cd "${HOME}"
hfile='.bash_history'
else
cd "${HISTFILE%/*}"
hfile="${HISTFILE##*/}"
fi;
if [ -f "${hfile}" ]; then
hsize=$(stat -c '%s' "${hfile}")
bfile="${hfile}~"
elif [ -e "${hfile}" ]; then
echo "${PWD}/${hfile} is not a regular file. Aborting." >&2
exit 1
else
echo "${hfile} not found in ${PWD}. Aborting." >&2
exit 1
fi;
if [ -f "${bfile}" ]; then
bsize=$(stat -c '%s' "${bfile}")
elif [ -e "${bfile}" ]; then
echo "${PWD}/${bfile} is not a regular file. Aborting." >&2
exit 1
else
bsize=0
fi;
if [ ${bsize} -gt ${hsize} ]; then
echo "Backup is larger than current history. Aborting." >&2
exit 1
fi;
cp -fp "${hfile}" "${bfile}"
@Bachsau
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Bachsau commented Jul 17, 2020

If you value your history, call this from your personal crontab.

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