shell脚本处理长参数的模板 一个shell模板,处理命令行参数,支持长短参数: #!/bin/bash # # FILE: kvm-clone-v2.sh # # DESCRIPTION: Clone a RHEL5.4/RHEL6 kvm guest on ubuntu14.04 host superv. # This shell is used for cloning RHEL5.4 or RHEL6.x KVM guest. # Note this shell is only test
通过shell脚本给GMP系统添加一个环境变量参数dateSwitchTimeInterval 1. insert.sh #!/bin/sh . ~/apphome/aic_export.sh #连接数据库 db2 connect to ${GMPDB} user ${GMPUSR} using ${GMPPWD} db2 set schema=$GMPSMA #从TM_INSTANCE表中获取Insert_Id值 instId=`db2 -x "select INSTANCE_ID from
https://stackoverflow.com/questions/5163144/what-are-the-special-dollar-sign-shell-variables mkdir folder && cd $_ (创建一个目录,并且立马切换到这个目录里面去.) $1, $2, $3, ... are the positional parameters. "$@" is an array-like construct of all position
shell判断一个变量是否为空方法总结 https://www.jb51.net/article/154835.htm 1.判断变量 复制代码代码如下: read -p "input a word :" wordif [ ! -n "$word" ] ;then echo "you have not input a word!"else echo "the word you input is $word"fi 2