Problem
We wish to get rid of [ as well as all of the escape sequences.
sed isn’t working, and we’re getting the following error:
$ sed 's/^[//g' oldfile > newfile; mv newfile oldfile;
sed: -e expression #1, char 7: unterminated `s' command
$ sed -i '' -e 's/^[//g' somefile
sed: -e expression #1, char 7: unterminated `s' command
Asked by hasan
Solution #1
Is ansifilter what you’re looking for?
You have two options: (1) enter the physical escape room; (2) enter the figurative escape room (in bash:)
Using keyboard entry:
sed 's/Ctrl-vEsc//g'alternatively
sed 's/Ctrl-vCtrl-[//g'Alternatively, you can utilize the following character escapes:
sed 's/\x1b//g'
Alternatively, for all control characters:
sed 's/[\x01-\x1F\x7F]//g' # NOTE: zaps TAB character too!
Answered by sehe
Solution #2
The correct answer is commandlinefu, which strips ANSI colors as well as movement commands:
Answered by Tom Hale
Solution #3
For my purposes, I was able to get by with the following, but this does not contain all conceivable ANSI escapes:
sed -r s/\x1b\[[0-9;]*m?//g
This disables m instructions, but use: for all escapes (as @lethalman suggested).
sed -r s/\x1b\[[^@-~]*[@-~]//g
Also see “https://stackoverflow.com/questions/7857352/python-regex-to-match-vt100-escape-sequences”.
A table of frequent escape sequences is also included.
Answered by Luke H
Solution #4
On Ubuntu, the ansi2txt tool (part of the kbtin package) appears to be working perfectly.
Answered by soorajmr
Solution #5
I don’t have enough reputation to comment on Luke H’s answer, but I wanted to provide the regular expression that I’ve been using to remove all ASCII Escape Sequences.
sed -r 's~\x01?(\x1B\(B)?\x1B\[([0-9;]*)?[JKmsu]\x02?~~g'
Answered by AGipson
Post is based on https://stackoverflow.com/questions/6534556/how-to-remove-and-all-of-the-escape-sequences-in-a-file-using-linux-shell-sc