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revised addToCrontabEveryHour

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This commit is contained in:
Martin Berghaus
2025-02-23 09:00:17 +01:00
parent f845d44eb6
commit 91816bedf8
1 changed files with 7 additions and 3 deletions
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10
core/addToCrontabEveryHour.sh
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@@ -5,14 +5,18 @@
# Folders always ends with an tailing '/'
_SCRIPT="$(readlink -f "${0}" 2> /dev/null)"
_CORE_SCRIPTS="$(dirname ${_SCRIPT:?"Missing SCRIPT"} 2> /dev/null)/"
_CIS_ROOT="$(dirname ${_CORE_SCRIPTS:?"Missing CORE_SCRIPTS"} 2> /dev/null)/"
# Note that an unprivileged user can use this script successfully,
# if no user has to be added to the host because it already exists.
function addToCrontabEveryHour() {
local _CIS_ROOT _MINUTE_VALUE _STRING
_CIS_ROOT="${0%%/core/*}/" #Removes longest matching pattern '/core/*' from the end
local _MINUTE_VALUE _STRING
! [ -z "${2##*[!0-9]*}" ] && _MINUTE_VALUE=$((${2}%60)) # if second parameter is integer then (minute-value % 60) as safe guard
_STRING="${_MINUTE_VALUE:?"Missing MINUTE_VALUE"} * * * * ${1:?"Missing first parameter COMMAND"} > /dev/null 2>&1"
readonly _CIS_ROOT _MINUTE_VALUE _STRING
readonly _MINUTE_VALUE _STRING
[ "$(id -u)" == "0" ] \
&& crontab -l | grep -qF "${_STRING:?"Missing CRON_STRING"}" \