title: use ed updated: 2015-10-10 11:11:24 description: A short interactive tutorial for ed. os: [macosx, linux] tags: [ed] deps: [] contributors: ["http://www.github.com/anschwa"]
How to use ed, a line oriented text editor.
ed sample.txt
sample.txt: No such file or directory
The message above warns that the sample.txt file is newly created.
a
the quick brown fox
jumped over the lazy dog
.
That was an append command, which added text to the file.
The dot on a line by itself terminated the append.
1s/f[a-z]x/dragon/
On line 1, replace the first substring matching an f followed by a lowercase alphabetic followed by x with ‘dragon’. The substitute command accepts basic regular expressions.
1,$p
the quick brown dragon jumped over the lazy dog
Print all lines from 1 to the last.
w
51
That wrote the file to disk. The ‘q’ command ends the editing session.
q