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#!/bin/sh
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2
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help="# ARGS: number of files to keep, [email address]\n
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# usage: flush files from a folder except a number equal to argument.\n
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# It only prints a warning if scripts-utils.sh is not imported in order to be used
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# from the terminal."
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7
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# Check if scripts-utils.sh is imported.
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if [ -z "${scripts_utils}" ] ; then
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echo "Import of scripts-utils.sh required."
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. scripts-utils.sh
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fi
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13
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check_arguments "$#" 1 "$help"
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15
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# Must not be quoted to avoid problem with ((…))
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backups_number=$(ls | wc -l)
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number_of_backups_to_delete=$((backups_number - $1))
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19
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if [ "${number_of_backups_to_delete}" -gt 0 ] ; then
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ls | head "-${number_of_backups_to_delete}" | xargs rm
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else
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if [ -n "$2" ] ; then
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dir=$(pwd)
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echo "There are not enough files in $dir to Flush it. Check if backup script works fine." | mail -s "[db] $dir has a backup problem" "$2"
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fi
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fi
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