本地搭建网站,wordpress提醒美化,搭建一个自己的网站,哪个网站ppt模板免费下载运维Shell脚本小试牛刀(一)
运维Shell脚本小试牛刀(二)
运维Shell脚本小试牛刀(三)::$(cd $(dirname $0)#xff1b; pwd)命令详解
运维Shell脚本小试牛刀(四): 多层嵌套if...elif...elif....else fi_蜗牛杨哥的博客-CSDN博客
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运维Shell脚本小试… 运维Shell脚本小试牛刀(一)
运维Shell脚本小试牛刀(二)
运维Shell脚本小试牛刀(三)::$(cd $(dirname $0) pwd)命令详解
运维Shell脚本小试牛刀(四): 多层嵌套if...elif...elif....else fi_蜗牛杨哥的博客-CSDN博客
Cenos7安装小火车程序动画
运维Shell脚本小试牛刀(五):until循环
运维Shell脚本小试牛刀(六): Shell中的函数认知 运维Shell脚本小试牛刀(七):从函数文件中调用另外一个脚本文件中函数 一: case语句使用命令行参数 如通常根据命令行参数不同执行某个服务执行不同的分叉操作:备份数据库web服务配置文件和一些其他文件到NAS存储设备等操作; [rootwww example10]# cat allInOutBackup.sh #!/bin/bash - # # # # FILE: allInOneBackup.sh # USAGE: ./allInOneBackup.sh # DESCRIPTION: # OPTIONS: ------- # REQUIREMENTS: --------- # # BUGS: ------ # NOTES: -------- # AUTHOR: ---------YangGe (TOM) ,YangGe.freedomicloud.com # ORGANIZATION: # CREATED: 2023-8-24 09:11:20 # REVISION: -------- # # # # # # case $1 in sql) echo Running mysql backup using mysqldump tools............................ # Running the backup command or script.... ;; sync) echo Running backup using rsync tools...................................... # Running backup using rsync tools. ;; snap) echo Running snapshot backup on storage................................... # Running snapshot backup command. ;; *) echo Backup utility echo Usage: basename $0 (sql|sync|snap) echo sql Run MYSQL backup utility. echo sync : Run web server backup utility. echo snap : Run snapshot backup utility... ;; esac 二: 测试分叉命令
注意: Linux下文件名时区分大小写的。同样case语句中的每个模式匹配也存在大小敏感的问题;当然如果我们想让脚本中的case语句对命令行参数的大小写不敏感,我们还是有办法解决的。一个比较简单的方法时使用如下命令开启 nocasematch选项(开启此选项后,当执行case或者[[ 条件命令时,Shell以大小写不敏感的方式匹配模式):
shopt -s nocasematch [rootwww example10]# ./allInOutBackup.sh Backup utility Usage: allInOutBackup.sh (sql|sync|snap) sql Run MYSQL backup utility. sync : Run web server backup utility. snap : Run snapshot backup utility... [rootwww example10]# ./allInOutBackup.sh mysql Backup utility Usage: allInOutBackup.sh (sql|sync|snap) sql Run MYSQL backup utility. sync : Run web server backup utility. snap : Run snapshot backup utility... [rootwww example10]# ./allInOutBackup.sh sql Running mysql backup using mysqldump tools............................ [rootwww example10]# ./allInOutBackup.sh sync Running backup using rsync tools...................................... [rootwww example10]# ./allInOutBackup.sh snap Running snapshot backup on storage................................... [rootwww example10]# ./allInOutBackup.sh SQL Backup utility Usage: allInOutBackup.sh (sql|sync|snap) sql Run MYSQL backup utility. sync : Run web server backup utility. snap : Run snapshot backup utility... 三 case使用命令行参数时忽略参数大小写 [rootwww example10]# cat allInOutBackupperlower.sh #!/bin/bash - # # # # FILE: allInOneBackup.sh # USAGE: ./allInOneBackup.sh # DESCRIPTION: # OPTIONS: ------- # REQUIREMENTS: --------- # # BUGS: ------ # NOTES: -------- # AUTHOR: ---------YangGe (TOM) ,YangGe.freedomicloud.com # ORGANIZATION: # CREATED: 2023-8-24 09:11:20 # REVISION: -------- # # # # # # # 忽略命令行参数的大小写shopt -s nocasematch case $1 in sql) echo Running mysql backup using mysqldump tools............................ # Running the backup command or script.... ;; sync) echo Running backup using rsync tools...................................... # Running backup using rsync tools. ;; snap) echo Running snapshot backup on storage................................... # Running snapshot backup command. ;; *) echo Backup utility echo Usage: basename $0 (sql|sync|snap) echo sql Run MYSQL backup utility. echo sync : Run web server backup utility. echo snap : Run snapshot backup utility... ;; esac 四: 测试输出 [rootwww example10]# ./allInOutBackupperlower.sh SQL Running mysql backup using mysqldump tools............................
