/bin/bashecho"All arguments: $@" 如果你再次运行脚本: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ./arguments.sh dog cat bird 将得到以下输出: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 All arguments:dog cat bird 需要记住的另一件事是,$0用于引用脚本本身。 如果需要的话,这是创...
拥有此神技,脚本调试从此与 echo、set、test 说分手! 比如在 Bash 脚本中可能会根据传入的参数来组合出内部所调用的命令的选项和参数,我们要验证的是这些选项和参数确实如我们预期的。...如果说我们就是想知道这个命令搭配上这些选项参数是否能按我们预期的那样工作呢?很简单,那就单独在命令行里面去执行一下。如果...
echo 'Enter a number between 1 and 4:' echo 'The number you entered is:' read aNum case $aNum in 1) echo 'You have chosen 1' ;; 2) echo 'You have chosen 2' ;; 3) echo 'You have chosen 3' ;; 4) echo 'You have chosen 4' ;; *) echo 'You did not enter a number b...
echo "Parameter #10 is ${10}" fi echo "---" echo "All the command-line parameters are: "$*"" if [ $# -lt "$MINPARAMS" ] then echo echo "This script needs at least $MINPARAMS command-line arguments!" fi echo exit 0 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13....
*) echo"Internal error!"; exit1;; esac done echo"Remaining arguments:" forargdo echo'-->'"\`$arg'"; done 比如我们使用 ./test -a -b arg arg1 -c 你可以看到,命令行中多了个arg1参数,在经过getopt和set之后,命令行会变为: -a -b arg -c -- arg1 ...
bash 中有很多内置的特殊变量,使用非常方便。如下是最常见的: 大家可以实际查看一下这些特殊变量,参考如下 variables.sh 脚本: 复制 #!/bin/bashecho"Name of the script:$0"echo"Total number of arguments:$#"echo"Values of all the arguments:$@" 1. 2. 然后提供几个参数运行脚本:...
#use $@ to print out all arguments at once echo $@ ' -> echo $@' # use $# variable to print out # number of arguments passed to the bash script echo Number of arguments passed: $# ' -> echo Number of arguments passed: $#' ...
echo "Argument values:" $@ Save and close the file. Give the fileexecutablepermission with the command: chmod u+x script.sh If you run the script without passing arguments, the output is: Total Arguments: 0 All Arguments values: Instead, run the script and pass arguments with the command...
#命令 选项 参数 command [-options] [arguments] [root@db04 ~]# ls //命令 [root@db04 ~]# ls -l //命令+选项 [root@db04 ~]# ls -l /home/ //命令+选项+参数 #命令:整条shell命令的主体 #选项:用于调节命令的具体功能 #以'-'引导段个事选项(单个字符),例如”-a“ #以'--'引导长格式...
/bin/bash echo "Name of the script: $0" echo "Total number of arguments: $#" echo "Values of all the arguments: $@" You can now pass any arguments you want and run the script: Alright, this brings us to the end of this chapter. I hope you now realize how powerful and useful ...