Tools
sed Cheat Sheet
Print-ready cheat sheet for sed, organized for fast lookup, study, and desk-side use
Sample
What's in this cheat sheet
- Basics
- Substitution
- Addresses
- Delete & Print
- Insert & Append
- Hold Space
- Multiple Commands
- In-place Editing
- Regex
- Common Patterns
Running sed
sed 's/old/new/' file.txt # substitute first match per line
sed 's/old/new/g' file.txt # substitute all matches per line
sed -n '5p' file.txt # print only line 5
sed '3d' file.txt # delete line 3
echo "hello" | sed 's/hello/hi/' # pipe input
Command-Line Flags
-n | Suppress automatic printing; only print with `p` |
-e 'cmd' | Execute a sed command (chain multiple with `-e`) |
-f script.sed | Read commands from a file |
-i[suffix] | Edit file in-place (optional backup suffix) |
-E / -r | Use extended regular expressions |
Download the full cheat sheet for all sections, formatted for print
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