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hamidreza-s/Erlang - ClearConsole.erl

Created April 12, 2014 05:25
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How to clear the Erlang shell.
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Erlang - ClearConsole.erl
%% move cursor to beginning of the line
io:format("\e[H").
%% clear the console
io:format("\e[J").
%% both
io:format("\e[H\e[J").
@laxmikantG

laxmikantG commented Oct 6, 2014

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@hamid Its not working. just says ok

@5hanth

5hanth commented Dec 22, 2014

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@laxmikantG Use the output of os:cmd("clear").
For me, io:format("\e[H\e[2J").

@magicgoose

magicgoose commented Jul 13, 2015

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after running some code later, everything that was cleared is revealed again

@StoneCypher

StoneCypher commented May 16, 2016

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this actually causes the shell to emit ansi/vt control codes, where the user's terminal may or may not choose to respond. that's why scrolling "fixes" it, is that erlang has no idea that happened, and is faithfully repainting.

you can verify by setting your interpreter to dumb tty and trying this. nothing will happen.

@sher

sher commented Oct 18, 2016

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io:format(os:cmd(clear)).

@netcastdeveloper1

netcastdeveloper1 commented Dec 19, 2018

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congrats tudrax
io:format(os:cmd(clear)) works!!!!

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