Linux Commands Reference

File/Directory

lsList directory contentsls -la

cdChange directorycd /var/www

pwdPrint current directorypwd

mkdirCreate a directorymkdir -p dir/sub

rmRemove file/directoryrm -rf dir/

cpCopy filescp -r src/ dest/

mvMove/rename filesmv old.txt new.txt

findFind filesfind . -name "*.ts"

chmodChange file permissionschmod 755 script.sh

chownChange file ownerchown user:group file

Text Processing

catPrint file contentscat file.txt

grepSearch for a patterngrep -r "TODO" src/

sedStream editorsed 's/old/new/g' file

awkPattern processingawk '{print $1}' file

headBeginning of a filehead -20 file.txt

tailEnd of a filetail -f log.txt

wcLine/word/byte countwc -l file.txt

sortSortsort -u file.txt

System

psList processesps aux

topReal-time processestop -c

killTerminate a processkill -9 PID

dfDisk usagedf -h

duDirectory sizedu -sh *

freeMemory usagefree -h

unameSystem informationuname -a

Network

curlURL requestcurl -X GET https://api.example.com

wgetDownload a filewget https://example.com/file.zip

pingCheck host responseping google.com

sshRemote accessssh user@host

scpCopy files remotelyscp file.txt user@host:~/

netstatNetwork statusnetstat -tlnp

Compression

tarArchivetar -czf file.tar.gz dir/

zipZIP compressionzip -r file.zip dir/

unzipZIP extractionunzip file.zip

gzipGzip compressiongzip file.txt

Last updated: 2026 · Free online tool

What is Linux Commands Reference?

Free online Linux commands reference that organizes the most-used commands by category such as files, processes, and networking, searchable with usage examples.

How to Use

1
Search— Search for the command you need by keyword.
2
Category— Filter by category buttons.
3
Copy— Copy the command you need.

Git CheatsheetFree online Git cheatsheet with searchable commands by category, from branching and merging to rebase, stash and reset, each showing usage and a danger level to avoid mistakes.

Frequently Asked Questions

A free online tool to browse frequently used Linux commands by category.

Yes, you can search in real-time by keyword.

No. It uses static data and works offline.

Yes, click on any item to copy it.

Yes, the responsive design works on mobile devices.