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ROOT ‹ Tutorials & Guides ‹ Tutorials for general Unix ‹ Normalizing terminal prompt (or putty prompt) after catting a binary file

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Normalizing terminal prompt (or putty prompt) after catting a binary file

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debuser

Post subject: Normalizing terminal prompt (or putty prompt) after catting a binary file | Posted: Wed Aug 04, 2010 3:44 am

Joined: Thu Aug 06, 2009 2:48 am
Posts: 105

Normalizing terminal prompt (or putty prompt) after catting a binary file

Some binaries or some command output (unexpected) can contain control sequence which can cause a terminal to interpret it as changing character set. That's why the prompt becomes unreadable and keystrokes abnormal (lines).

To fix this, there are few possible solutions:

Code:

$ echo -e '\017'

Code:

$ reset

(NOT REBOOT)
or

Code:

$ stty sane

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Fix shell terminal after cat-ing a binary or echoing some encrypted content. Daemontools /service/test/log: unable to open supervise/ok: file does not exist. Linux - Unable to login (and authentication succeeds) - File size limit exceeded. bash: Redirecting standard error to a shell variable and standard output to a file. bash: -bash: output: cannot overwrite existing file.

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debuser

Post subject: Re: Normalizing terminal prompt (or putty prompt) after catting a binary file | Posted: Wed Aug 04, 2010 5:39 pm

Joined: Thu Aug 06, 2009 2:48 am
Posts: 105

Code:

[root@server]$ cat /etc/localtime
'5´à'õ
`(äû`)Ôì`*ÄÝ`+´Î`,¤¿`-$ à-°`.
                             P/t`0duP1]®à2r{Ð3=»4R58Ýa9ûv:½C;ÛX<¦_=»:>A?@f#A
                                                                            9BFCd
                                                                                 
E⎼▒⎽␊ ⎽␊├ ├⎺ ␉▒␌┐⎽⎻▒␌␊.
[⎼⎺⎺├@┬┬┬ /┤⎽⎼/⎻⎺⎼├⎽/┌▒┼±/⎻␤⎻5-␊│├␊┼⎽␋⎺┼⎽]# ␊␌␤⎺ -␊ '\017'

[root@server]$

After echo -e '\017' the terminal prompt is fixed.

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jonnblaze

Post subject: Re: Normalizing terminal prompt (or putty prompt) after catting a binary file | Posted: Mon Jul 29, 2013 1:02 am

Joined: Mon Jul 29, 2013 12:58 am
Posts: 1

thank you very much for sharing this. its very helpful

_________________
gHost rIdEr

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3 posts • Page 1 of 1

Topics		Author	Replies	Views	Last post
Topics related to - "Normalizing terminal prompt (or putty prompt) after catting a binary file"
	Fix shell terminal after cat-ing a binary or echoing some encrypted content	admin	0	1714	Thu Mar 03, 2011 5:58 am admin
	Daemontools /service/test/log: unable to open supervise/ok: file does not exist	debuser	0	5153	Thu Nov 26, 2009 7:11 am debuser
	Linux - Unable to login (and authentication succeeds) - File size limit exceeded	debuser	3	3226	Tue Dec 06, 2011 8:24 am admin
	bash: Redirecting standard error to a shell variable and standard output to a file	debuser	0	4970	Mon Oct 31, 2011 6:54 am debuser
	bash: -bash: output: cannot overwrite existing file	debuser	0	4816	Mon Oct 31, 2011 7:03 am debuser

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