Sed is a stream editor. It reads a stream of input and writes a stream of output. This tool provides a STDIN and STDOUT for previewing transformations.

sed OPTIONS [SCRIPT] [INPUTFILE...]

options

flagdescription
-E
-r
Use extended regular expressions (see docs)
-iedit file in place
-nsuppress output

script syntax

characterdescription
.Any character
[ ]Any character contained in the brackets
[^ ]Any character not contained in the brackets
^Starting position
$Ending position
*Matches the preceding element zero or more times
\{m\}
{m}
Matches the preceding element exactly m times
\{m,\}
{m,}
Matches the preceding element at least m times
\{m,n\}
{m,n}
Matches the preceding element at least m and not more than n times
\( \)
( )
Defines a subexpression to be treated as a single element

character classes

classdescription
[:upper:]uppercase letters
[:lower:]lowercase letters
[:alpha:]upper- and lowercase letters
[:digit:]digits
[:xdigit:]hexadecimal digits
[:alnum:]digits, upper- and lowercase letters
[:punct:]punctuation characters
[:blank:]space and TAB characters only
[:space:]blank (whitespace) characters
[:cntrl:]control characters
[:graph:]graphic characters (all characters which have graphic representation)
[:print:]graphic characters and space
  • substitution
  • appending
  • filtering
  • line numbers
  • escaping characters

Seddy uses GNU sed, compiled from source to WebAssembly. Try sed --version to see what's running.

View the source code (and contribute!) on GitHub.

See my other work at malachi.dev.

❱sed