常见的一种误区,是使用pwd命令,该命令的作用是“print name of current/working directory”,这才是此命令的真实含义,当前的工作目录,这里没有任何意思说明,这个目录就是脚本存放的目录。所以,这是不对的。你可以试试 bash shell/a.sh,a.sh 内容是 pwd,你会发现,显示的是执行命令的路径 /home/june,并不是 ...
/bin/bash# Store the current directory in a variablescript_dir=$PWDecho"The script is located in:$script_dir"# Output:# The script is located in: /path/to/your/script Bash Copy In this example, we’re storing the current directory in thescript_dirvariable and then printing it. This ap...
波浪号(Home directory[tilde])。 这个和内部变量$HOME是一样的。默认表示当前用户的家目录(主目录),这个和~/效果一致,如果波浪号后面跟用户名,表示是该用户的家目录。 特殊符号(~+) 当前的工作目录(current working directory)。 这个和内置变量$PWD一样。 特殊符号(~-) 前一个工作目录(previous working direc...
这个教程给出几个如何使用类似zenity和whiptail的工具在Bash Shell 脚本中提供消息/对话框的例子。使用这些...
# 位置参数调用, 假设在终端输入 bash bash_tutorial.sh 1 2 3 echo "current script name: \$0 $0" # 当前脚本名称 echo "incoming parameters: \$1 $1 \$2 $2 \$3 $3" # 访问传入的参数 echo "the number of parameters: \$# $#" # 传入的参数数量 echo "all parameters: \$@ $@" # ...
另外,可以根据第一种方法结合使用 realpath 命令,也可获取脚本所在目录的绝对路径: 代码语言:javascript 复制 #!/usr/bin/env bashecho"The script you are running has:"echo"basename: [$(basename "$0")]"echo"dirname : [$(dirname $(realpath "$0") )]" 参考: stackoverflow question 59895...
Mycurrent locationis XYZ My home directory is XYZ My default shell is XYZ 提示:使用全局变量$USER、$PWD、$HOME和$SHELL。 练习2:编写一个 bash 脚本,声明一个名为price的变量.使用它来获取以下格式的输出: Today's price is $X Tomorrow's price is $Y ...
To execute the script, navigate to the directory where the script is saved and run the following command: ./test1.sh This will display the current user's username. Output: Current user's username: ad 6. Write a Bash script that executes a command to list all files in the current direct...
Bash's exit status is the exit status of the last command executed in the script. If no commands are executed, the exit status is 0. An attempt is first made to open the file in the current directory, and, if no file is found, then the shell searches the directories in PATH for ...
(the current directory) is part of your command search path, i.e., the script’s directory path (as discussed in Chapter 3). If these aren’t in your path, you must type ./ scriptname, which is really the same thing as typing the script’s absolute pathname (see Chapter 1. Before...