では、シェルスクリプトを作成してみましょう。今回のシェルスクリプト（auto_archiving.sh）は、次のようになります。
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#!/bin/sh # zip:1 tar.gz:2 tar.bz2:3 tar.xz:4 archiving_mode="2" backup_folder="${HOME}/backup" archive_folder="${HOME}/archive" mkdir -p ${archive_folder} backup_list=$(cd ${backup_folder} && ls -p | grep /$ | tr -d /) datetime=$(date +%Y%m%d%H%M) echo "■■ Create Archive：${datetime} ■■" >> ${archive_folder}/archive.log for i in $backup_list do cd ${backup_folder} case ${archiving_mode} in 1 ) zip -r ${archive_folder}/${i}-${datetime} ${i} >> ${archive_folder}/archive.log ;; 2 ) tar czvf ${archive_folder}/${i}-${datetime}.tar.gz ${i} >> ${archive_folder}/archive.log ;; 3 ) tar cjvf ${archive_folder}/${i}-${datetime}.tar.bz2 ${i} >> ${archive_folder}/archive.log ;; 4 ) tar cJvf ${archive_folder}/${i}-${datetime}.tar.xz ${i} >> ${archive_folder}/archive.log ;; esac rm -rf ${backup_folder}/${i} cd done |