expr Command in LinuxSummary
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.
gzip: Compressing Files on LinuxSummary
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.
rev Command: Reverse Lines Character by CharacterSummary
The rev command reverses each line of its input, character by character. It's a simple yet surprisingly useful tool for manipulating text.
time Command: Measuring Execution TimeSummary
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.
bg Command: Running Jobs in the BackgroundSummary
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.
comm Command in LinuxSummary
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.
curl Command in LinuxSummary
curl is a command-line tool used to transfer data with URL syntax, supporting protocols like HTTP, HTTPS, FTP, and more. It's often used for downloading files, testing APIs, and debugging web servers.
fold Command: Wrap Text to Fit a Specified WidthSummary
The fold command is a simple utility that wraps lines of text to a specified width. This is useful for displaying long lines in terminals or text editors with limited width, or for preparing text for systems with specific line length requirements.
lsof Command: List Open FilesSummary
The lsof command lists information about files opened by processes. It's invaluable for troubleshooting issues like identifying which process is locking a file or using a specific network port.
netstat: Network Statistics ToolSummary
netstat is a command-line utility for displaying network connections, routing tables, interface statistics, masquerade connections, and multicast memberships. It provides valuable insights into the network activity of a system.