这是它为我生成的内容: Using global variable in Bahs script 你是否注意到它如何自动将我的名字添加到其中?这就是包含用户名的全局变量$USER的魔力。 你可能还注意到,我有时将"与echo一起使用,但其他时候则不使用。这是故意的。bash 中的引号有特殊含义。它们可用于处理空格和其他特殊字符。让我展示一个例子。
if["$1"='node'];thenSCRIPT_FILE=forARGin"$@"doif["${ARG}"='main.js'];thenSCRIPT_FILE='main.js'breakfidoneif[ -z"$SCRIPT_FILE"];thenexec"$@""main.js"exit0;fifiexec"$@" 这是在常见 nodejs 的 docker 镜像时经常使用的一段代码: "$@"还常常与shift命令一起使用来丢弃参数 $1#!/...
Write a Bash script that declares two variables, "firstName" and "lastName", and assign them your first name and last name, respectively. Print a message greeting yourself using variable interpolation. Code: #!/bin/bash # Shebang line: Indicates the path to the shell interpreter (in this ...
Here's how to write an interactive script with an easy tool calledDialog. It asks the user to choose between a variable number of machines (depending on the configuration file) and, of course, the password. However, if the remote user is the same for both machines (which is normal if y...
A function does not execute when declared. The function's body executes when invoked after declaration. Follow the steps below to create a bash script with various syntax options: 1. Using your favorite text editor, create a shell script calledsyntax. If you're using Vim, run the following ...
20 Bash Script Examples This guide aims to give you an understanding of shell, bash, bash scripting concepts, and syntax, along with some valuable examples. Here, you will learn bash scripting from the ground up and how to automate processes on Linux computers. We will discuss variables, ...
Variables Built-in Variables For example$HOME $PWD ..., for more info, seeenviron(7) Positional Parameters echo$para1 $para2 $para3 $para4 $0 $1 $2 $3 $4 $@ Special Parameters $? # exit status of a command, function, or the script itself ...
println(ANSI_BOLD + ANSI_GREEN + "Found environment variable named hub_org with value as: " + hub_org + ANSI_NORMAL) } } // cleanWs() checkout scm commit_hash = sh(script: 'git rev-parse --short HEAD', returnStdout: true).trim() ...
ShellCheck can make suggestions for improving the robustness of a script: rm -rf"$STEAMROOT/"*# Catastrophic rmtouch ./-l; ls *# Globs that could become optionsfind . -execsh -c'a && b {}'\;# Find -exec shell injectionprintf"Hello$name"# Variables in printf formatforfin$(ls *.tx...
这里以kevin.txt文件内容（单词由一个或多个空格字符分隔）为例进行简单说明 [root@centos6-test06 ~]...