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Mastering the chmod Command
A guide to the `chmod` command used in Linux to change file and directory access permissions. Use this tool to easily understand and apply permission settings.
Mastering the chown Command
A guide to the `chown` command in Linux used to change the owner (user) and group of files and directories. Use this tool to easily understand and apply ownership settings.
cmp: Compare two files byte by byte
The `cmp` command compares two files byte by byte, reporting the first differing location and line number. It is useful for quickly checking if simple binary or text files are identical.
column: Format text into columns
The column command reformats text into columns. It's often used to make the output of other commands more readable by presenting it in a tabular format. It supports specifying delimiters and automatically adjusting column widths.
comm: Compare common and unique lines of two sorted files
The comm command compares the contents of two sorted files and outputs lines unique to each file and lines common to both, divided into three columns. It is useful for merging or de-duplication tasks.
cp Command Guide: Copying Files and Directories
The `cp` command (copy) is used in Linux and Unix-based operating systems to copy files or directories. It is essential when creating duplicates while preserving the original files/directories. This guide will help you learn various uses of the `cp` command.
Complete Guide to the crontab Command: How to Schedule Repetitive Tasks
`crontab` is a command used in Linux/Unix systems that allows users to schedule specific commands or scripts to run periodically at specified times. It plays a crucial role in automating repetitive tasks such as system maintenance, backups, and data synchronization.
The Complete Guide to the Curl Command
`curl` is a powerful command-line tool used to transfer data using URL syntax. It can perform various network tasks such as communicating with web servers or downloading files. It supports various protocols including HTTP, HTTPS, FTP, FTPS, SCP, and SFTP.
cut Command Guide: Extracting Specific Columns from Files
The `cut` command is used to extract specific fields (columns), bytes, or characters from text files or data passed through pipes. It is particularly useful for extracting or processing necessary data from CSV files, log files, etc., and plays a crucial role in building data processing pipelines when used with `awk` or `grep`.
date Command Guide: Displaying and Setting Date and Time
The `date` command is used to display the system's current date and time, or to set them. It's utilized in various situations, such as generating timestamps in shell scripts or recording time in log files. Master the various uses of the `date` command with this guide.
dd: File Conversion and Copying
The dd command is a powerful utility used for converting and copying files. It is primarily used for low-level data manipulation such as creating disk images, backing up and restoring partitions, creating bootable USB drives, and zeroing out file contents. Extreme caution is advised as incorrect usage can lead to data loss.
Mastering the `df` Command
A guide to the `df` command, which reports disk space usage of file systems in Linux. This tool allows you to easily check the available space, total space, and usage of all mounted file systems.