GNU/Linux CLI Cheatsheet

Concatenate and write files.

Concatenate and write files in reverse.

Number lines and write files.

Write files in octal or other formats.

Transform data into printable data.

Transform data into printable data.

Transform data into printable data.

Reformat paragraph text.

Paginate or columnate files for printing.

Wrap input lines to fit in specified width.

Output the first part of files.

Output the last part of files.

Split a file into pieces.

Split a file into context-determined pieces.

Print newline, word, and byte counts.

Print checksum and block counts.

Print CRC checksum and byte counts.

Print or check BLAKE2 digests.

Print or check MD5 digests.

Print or check SHA-1 digests.

Print or check SHA-2 digests.

Sort text files.

Shuffle text files.

Uniquify files.

Compare two sorted files line by line.

Produce a permuted index of file contents.

Topological sort

Print selected parts of lines.

Merge lines of files.

Join lines on a common field.

Translate, squeeze, and/or delete characters.

Convert tabs to spaces.

Convert spaces to tabs.

List directory contents.

Briefly ls.

Verbosely ls.

Color setup for ls, etc.

Copy files.

Convert and copy a file.

Copy files and set attributes.

Move (rename) files.

Remove files or directories.

Remove files more securely.

Make a hard link via the link syscall

Make links between files.

Make directories.

Make FIFOs (named pipes).

Make block or character special files.

Print value of a symlink or canonical file name.

Remove empty directories.

Remove files via the unlink syscall

Change file owners and groups.

Change file groups.

Change access permissions.

Change file timestamps.

Report file system disk space usage.

Estimate file space usage.

Report file or file system status.

Synchronize cached writes to persistent storage.

Shrink or extend the size of a file.

Print a line of text.

Format and print data.

Print a string until interrupted.

Do nothing, unsuccessfully.

Do nothing, successfully.

Check file types and compare values.

Evaluate expressions.

Redirect output to multiple files or processes.

Strip directory and suffix from a file name.

Strip last file name component.

Check file name validity and portability.

Create temporary file or directory.

Print resolved file names.

Print working directory.

Print or change terminal characteristics.

Print environment variables.

Print file name of terminal on standard input.

Print user identity.

Print current login name.

Print effective user ID

Print group names a user is in

Print login names of users currently logged in.

Print who is currently logged in

Print or set system date and time.

Print machine hardware name.

Print the number of processors.

Print system information.

Print or set system name.

Print numeric host identifier.

Print system uptime and load.

Change SELinux context of file

Run a command in specified SELinux context

Modify the root directory

Modify environment variables.

Modify niceness.

Immunize to hangups.

Modify buffering of standard streams.

Run with time limit

Sending a signal to processes.

Delay for a specified time.

Show factors of numbers.

Reformat numbers

Print sequences of numbers