[Tips] How to remove control characters from terminal recording (i.e. by script command)

[Aki]

Hello,

Just a tip on how to remove control characters from terminal logs (i.e. generated with the script [1] command).

The ansi2txt program is required (from the colorized-logs package [2]).

You can use the following command [3] where log.txt is the log generated by the script command (or similar commands):

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cat log.txt | ansi2txt | col -b > log-cleared.txt

Hope this helps.

--
[1] SCRIPT(1)
[2] colorized-logs
[3] Removing control chars (including console codes / colours) from script output

[CloisteredNeuron]

Thanks Aki

I was trying to save the GNOME Terminal buffer and a user suggested the script command. It works great other than the control characters. I created an awk script:

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clout.sh #Clean script output
#Create output with - script -a o1 --timing=t1
#Run with sh clout.sh o1 | less
#First search element should be ^M (hold ctrl and press V and then M)
awk '{gsub(/\033\[01\;36m|\033\[01\;32m|\033\[01\;34m|\033\[0m|\033\[01\;34m|\033\[\?2004l|\033\[\?2004h/,"")}1' $1

that removed control sequences from a single test case but ansi2txt is SO much better.

Thanks for sharing this!