shell 1.1 for循环语句在计算机科学中,for循环(英语:for loop)是一种编程语言的迭代陈述,能够让程式码反复的执行。 它跟其他的循环,如while循环,最大的不同,是它拥有一个循环 惨绿少年 2017/12/27 3.4K0 基于网传的shell脚本,进行简单优化 bashbash 指令unixphplinux [root@localhost ~]
# 自定义列表forloopin12345doecho"loop=$loop"doneexit0deyuy/bin/my_shell >>chmodu+x for1.shdeyuy/bin/my_shell >> ./for1.shloop=1loop=2loop=3loop=4loop=5还可以通过读取文件内容生成变量列表deyuy/bin/my_shell >>vim num.txt12345 6 7 8 #!/bin/bash # Program: # This program will...
for i in {1..10} ;do userdel -r user$i ;done 3、/etc/rc.d/rc3.d目录下分别有多个以K开头和以S开头的文件;分别读取每个文件,以K开头的输出为文件加stop,以S开头的输出为文件名加start,如K34filename stop S66filename start for files in /etc/rc.d/rc3.d/[KS]* ;do if [ `basename $f...
shell脚本报错:"syntax error: unexpected end of file" 原因和解决 2019-12-25 20:38 −在windows用notepad++编辑的shell脚本,拷贝到centos执行时,报错如下: 导致报错的可能原因: 原因1:Windows的文本默认是dos格式,换行符 CR LF。Linux的文本是unix格式,换行符 LF。另外,Mac系统下文本换行符为 CR... ...
PowerShell ForEach($userin$users) {Set-ADUser$user-Department"Marketing"} 在前面的示例中,有一个名为$users的数组,其中包含 Active Directory 域服务 (AD DS) 用户对象。 ForEach 构造会为每个对象处理一次大括号之间的 Windows PowerShell 命令。 处理命令时,$user是包含数组中每个项的变量。 ...
Unix和Linux上最广泛使用的归档工具是tar命令, tar命令最开始是用来将文件写到磁带设备上归档的,然而它也能把输出写到文件里. tar function [options] object1 object2 ... tar命令选项 理解shell 一个shell 命令就是一个子进程。 命令列表就是使用括号包围起来的一组命令,它能够创建出子shell来执行这些命令。
A shell script is simply a text file containing a sequence of commands. When you run the file—or script—it executes the commands contained in the file. The term shell simply refers to the particular command-line user interface you use to communicate with the Linux kernel. Several different...
Shell Scripting - Bash Scripting Tutorial with examples for Linux/Bash/Unix 评分:3.5,满分 5 分3.5(133 个评分) 2,071 个学生 创建者Kish Sat,Vrunda Bakshi 上次更新时间:1/2016 英语 英语[自动] 您将会学到 More than 60+ programming & real world examples where shell script is used to automate...
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Ever wish that find were a built-in shell loop? Do you want your script to work on nearly any shell on any Unix-like OS?Modernish is a library for shell script programming which provides features like safer variable and command expansion, new language constructs for loop iteration, and much...