-d或–directory 直接把欲删除的目录的硬连接数据删成0,删除该目录。 -f或–force 强制删除文件或目录。 -i或–interactive 删除既有文件或目录之前先询问用户。 -r或-R或–recursive递归处理,将指定目录下的所有文件及子目录一并处理。 -v或–verbose 显示指令执行过程。 清空文件或者日志内容,比如test.log,但...
Use it with any of the two commands below: It will print out the string passed to the echo inside the script. Script #2: For Comments Comments are highly important for correct code. They are placed in code with the #(hash) that goes before the text and it gives no intervention in sc...
Ashell scriptis a file of executable commands that has been stored in a text file. When the file is run, each command is executed. Shell scripts have access to all the commands of the shell, including logic. A script can therefore test for the presence of a file or look for particular ...
Unix shell,通常被称作“命令行”,为Unix和类Unix操作系统提供了传统的用户界面。用户通过输入shell所执行的命令,引导计算机的操作。 二shell 交互式环境 Interactive environment [root@xxx ~]# #represents the command line for the admin user [root@xxx ~]$$represents the command linefor a normal user 三s...
Chapter 3. Basic bash Shell Commands IN THIS CHAPTER Checking out the bash shell Reading the manual Cruising through the filesystem Handling files and directories Viewing file contents The default … - Selection from Linux® Command Line and Shell Scr
About grep in Linux shell script Often, programmers need to find a file that contains a specific line or a specific word in that line. On Linux, this is accessible with one exact, simple but powerful grep command - grep stands for "global regular expression print". It can also find strin...
# Shebang line: Indicates the path to the shell interpreter (in this case, bash) # Script to print a multi-line message using escape sequences # Using echo command to print a multi-line message echo -e "This is Exercise-1.\n\tThis is Exercise-2.\n\t\tThis is Exercise-3." ...
When you define a function, you tell the shell to store its name and definition (i.e., the shell commands it contains) in memory. If you want to run the function later, just type in its name followed by any arguments, as if it were a shell script. You can find out what functions...
Unix shell and basic commandsGorodkin, Jan
Re: 40 Basic Linux Shell Commands « Reply #1 on: December 31, 2011, 10:09:52 AM » I would add the command df too. Quote df - report file system disk space usage I personally like df -h myself. I realize the thread is old but it is still a good one. I may think of...