Combinations of Unix/Linux Commands That Every Developer Should Know

 

Introduction:

Unix and Linux are widely used operating systems in the world of development, and a solid understanding of the command line is crucial for any developer. Knowing the right commands can save time and make your workflow more efficient. In this article, we will examine a portion of the most useful combinations of Unix/Linux commands that every developer should know.

1. Listing Files and Directories:

The "ls" command is used to list the files and directories in a directory. You can use the "-l" option to show the documents and catalogs in a long organization, which incorporates information such as file size, permissions, and the date the file was last modified.

Combining "ls" with "grep" allows you to search for specific files within a directory. For example, "ls -l | grep 'txt'" will list all files in a directory that have the ".txt" file extension.

2.     Searching for Text in a File:

The "grep" command is used to search for text within a file or multiple files. The basic syntax is "grep 'text to search for' file". You can likewise utilize customary articulations to lookfor more specific text.

Combining "grep" with "sed" allows you to search for text and supplant it with something different. For example, "grep -rl 'old text' * | xargs sed -i 's/old text/new text/g'" will search for all instances of "old text" in all files in a directory and replace them with "new text".

3.     Compressing and Extracting Files:

The "tar" command is used to compress and extract files. The basic syntax for compressing a file is "tar -cvf file.tar file", and the basic syntax for extracting a file is "tar -xvf file.tar".

Combining "tar" with "gzip" allows you to compress and extract files in the gzip format. For example, "tar -zcvf file.tar.gz file" will compress the file, and "tar -zxvf file.tar.gz" will extract it.

4.     Viewing and Editing Files:

The "cat" command is utilized to see the items in a document,, and the "nano" command is a basic text editor that can be used to edit files.

Combining "cat" with "grep" allows you to view specific lines of a file that contain a certain text. For example, "cat file.txt | grep 'text to search for'" will display all lines in the file that contain the text "text to search for".

5.     Managing Processes:

The "ps" command is used to view the processes running on your system, and the "kill" command is used to stop a process.

Combining "ps" with "grep" allows you to view specific processes running on your system. For example, "ps aux | grep 'process name'" will display all processes that contain the text "process name".

Combining "kill" with "pgrep" allows you to easily find and stop a process by its name. For example, "kill $(pgrep -f 'process name')" will stop all processes that contain the text "process name".

6.     Managing Users and Groups

The "useradd" and "userdel" command are used to create and delete users. The "groupadd" and "groupdel" command are used to create and delete groups.

Combining "user