Linux Commands

Summary

The systemctl command is a crucial tool for managing system services and units in modern Linux systems using systemd.

Summary

The nl command numbers the lines of a file or standard input, offering control over the line numbering format and criteria.

Summary

The basename command removes the directory and suffix from file names. It's handy for extracting the essential name component of a file path.

Summary

The dd command in Linux is a versatile utility used for copying and converting data from one source to another. It excels at disk imaging, data backup, and data manipulation tasks.

Summary

The expr command evaluates expressions and prints the result to standard output. It's a versatile tool for performing arithmetic, string manipulation, and logical operations within shell scripts or on the command line.

Summary

gzip is a command-line utility used for compressing files to reduce their storage size. It uses the Lempel-Ziv coding (LZ77) algorithm. It's a quick and easy way to create compressed archives, saving disk space and bandwidth when transferring files.

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The rev command reverses each line of its input, character by character. It's a simple yet surprisingly useful tool for manipulating text.

Summary

The time command measures the execution time of a given command or program. It provides information about the real time, user CPU time, and system CPU time used during the command's execution.

Summary

The bg command in Linux is used to move a suspended (stopped) job to the background, allowing you to continue using the terminal while the job runs. This is particularly useful for long-running processes that don't require constant user interaction.

Summary

The comm command is used to compare two sorted files line by line. It displays lines unique to the first file, lines unique to the second file, and lines common to both files.