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Full Discussion: Disabling Backslash Interpretation with "echo -E"?
Top Forums Shell Programming and Scripting Disabling Backslash Interpretation with "echo -E"? Post 302687473 by mrm5102 on Thursday 16th of August 2012 04:23:37 PM
Old 08-16-2012
Hey Guys,

EDIT:
READ THIS FIRST:
Not sure what the heck is going on but now the same thing is happening on all the machines I'm trying this on...
So now it is changing the Escape Sequences when viewing inside the text file....
SO YOU CAN IGNORE MY QUESTION BELOW... NOT SURE WHAT HAPPENED..????


I had another question if anyone knows why this is happening?

On the one server I'm testing this on, when I print stuff out to stdout that contains Bolded Text and also
redirect the execution of the script to a file it seems to change the escape sequences like this:
From this --> \033[1m for Bold to this --> ^[[1m...

The Server that, that was run on is:
OS: SLES 11.1
Shell: /bin/bash Version 3.2.51


But then testing this on another server which is:
OS: AIX 6
Shell: /usr/bin/ksh
*But I have Bash Version 3.2.16 installed on this server...


So I guess my question is, is there something that changed between those 2 version of Bash that would
cause those Escape Sequences to be replaced by different sequences?

I can include an example if I'm not making sense...


UPDATE:
I also just went and tested the exact same code on another server which is:
OS: OpenSUSE 11.4
Shell: Bash Version 4.1.10
And after testing this on this machine as well, it does the same thing of changing the Bold
Escape Sequences from "\033[1m" --to--> "^[[1m"


Thanks in Advance,
Matt

---------- Post updated at 04:23 PM ---------- Previous update was at 02:40 PM ----------

Hey Corona, sorry didn't see your reply.

I forget exactly why I had it being read into an array first... I think it was because like every other way I tried reading the file
it would not preserve whitespace (i.e. empty lines that needed to be there).

Thanks Again,
Matt
Last edited by mrm5102; 08-16-2012 at 04:04 PM..
 

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LEARN ABOUT DEBIAN

bashbug

BASHBUG(1)							      bashbug								BASHBUG(1)

NAME

       bashbug - report a bug in bash

SYNOPSIS

       bashbug [--help] [--version] [bug-report-email-addresses]

DESCRIPTION

       bashbug is a utility for reporting bugs in Bash to the maintainers.

       bashbug will start up your preferred editor with a preformatted bug report template for you to fill in. Save the file and quit the editor
       once you have completed the missing fields.  bashbug will notify you of any problems with the report and ask for confirmation before
       sending it. By default the bug report is mailed to both the GNU developers and the Debian Bash maintainers. The recipients can be changed
       by giving a comma separated list of bug-report-email-addresses.

       If you invoke bashbug by accident, just quit your editor. You will always be asked for confirmation before a bug report is sent.

OPTIONS

       --help
	      Show a brief usage message and exit.

       --version
	      Show the version of bashbug and exit.

       bug-report-email-addresses
	      Comma separated list of recipients' email addresses. By default the report is mailed to both the GNU developers and the Debian Bash
	      maintainers.

ENVIRONMENT

       DEFEDITOR
	      Editor to use for editing the bug report.

       EDITOR
	      Editor to use for editing the bug report (overridden by DEFEDITOR).

SEE ALSO

       bash(1), reportbug(1), update-alternatives(8) for preferred editor.

AUTHOR

       This manual page was written by Christer Andersson <klamm@comhem.se> for the Debian project (but may be used by others).

GNU Bash 3.1							 11 December 2007							BASHBUG(1)
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