For example: echo "Hello $1" 1. Run: ./script.sh Wan 1. It printHello Wan. Example Create a empty project init-js.sh echo "Initializing JS project at $(pwd)" git init npm init -y # create package.json with all
Initializes a bare generable-script with no arguments, options nor flag. You can add them later by using the respective subgenerators or by properly modifying the .yo-rc.jsonExample:$ yo bash:init my-script.shThe output will becreate my-script.sh ...
done #结束for循环 echo"FILE EXTENSION = ${EXTENSION}"echo"SEARCH PATH = ${SEARCHPATH}"echo"DEFAULT = ${DEFAULT}"echo"Number files in SEARCH PATH with EXTENSION:"$(ls-1"${SEARCHPATH}"/*."${EXTENSION}" | wc -l) if [[ -n $1 ]]; then echo "The non option arguments are:" $@...
The output from this script is the name of the script. The$0parameter is reserved and predefined as the name of the running script and cannot be used for any other purpose. This can be handy inside a script because you don't need to pass the script its own name if it requires it. S...
We will discuss variables, conditional statements, passing command line arguments to scripts, reading user input, loops and functions, and many more. What is shell/bash scripting? What are the different shell implementations? How to create a shell script? Tips for writing the script Open and edi...
If you get nvm: command not found after running the install script, one of the following might be the reason:Since macOS 10.15, the default shell is zsh and nvm will look for .zshrc to update, none is installed by default. Create one with touch ~/.zshrc and run the install script ...
# This program will only work with bash(1) # An similar program using the tcsh(1) script language can be found # as parse.tcsh # Example input and output (from the bash prompt): # ./parse.bash -a par1 'another arg' --c-long 'wow!*\?' -cmore -b " very long " ...
bash -x ./your_script.sh 或者也可以在要调试的特定行之前添加set -x, set -x是 启用shell的一种模式,在这种模式下,所有执行的命令都将打印到终端。另一种测试脚本的方法是使用这个神奇的工具: https://www.shellcheck.net/ 只要复制并粘贴脚本到文本框,工具会给我们一些建议,可以用来改进我们的脚本。 我...
The statementTEMP=`getopt hs $*`is used to get the input arguments when the script is invoked (such as the -h for help and -s for silent mode). The statements[ -z "$X" ]andecho "The environment variable X is not set."andusageare used to test if the string is null (-z) and...
/bin/bash#用case语句和通配符判断用户输入的字符是数字、字母还是其他字符。read-p"请输入一个字符,并按Enter键确认:"KEYcase"$KEY"in[a-z]|[A-Z])#如果输入的字符(只能是1位,aD则会跳到兜底)是大写字母或者小写字母,则输出是字母echo"您输入的是 字母。";;...