Re: escape codes in ksh \033]0;\$PWD\007\$PWD
I have not been able to figure out how to send escape codes to ksh
I saw a syntax for ksh on
http://www.steveshilling.pwp.blueyonder.co.uk/scripts/xtermtitle.txt
-
PS1='^[]0;[EMAIL PROTECTED]: ${PWD}^Gksh$ '
-
where ^[ is used instead of \033 and ^G instead of \007
but I tried 3 systems with ksh, no go, it doesn't understand escape
characters, not with \032, not with \[\e and not with ^[ to signfy beginning
of escape code... ksh just repeats them exactly like regular characters
in bash it's easy
PS1='\[\e]0;$PWD\a\]$PWD '# (in title) HOST-$PWD ... $PATH
I came up with the following... needs perl, needs xterm
but works in ksh, and bash too
PS1=$(perl -e 'printf \033]0;\$PWD\007\$PWD ')
but i just don't know how (and someone must know how) people get the escape
codes into ksh that it works from command prompt or script with a one line
solution (and without secondary help from something like c or perl code)
Oh, the purpose of this escape sequence is to synchronize the title with PS1
to be the current directory on an xterm (but the question is about escape
codes, not xterm ;-) )
-Robert
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
Re: escape codes in ksh \033]0;\$PWD\007\$PWD
On Tue, 22 Nov 2005, Robert Body wrote:
I have not been able to figure out how to send escape codes to ksh
KSH does not understand escape codes. You have to embed literal special
characters into $PS1.
I saw a syntax for ksh on
http://www.steveshilling.pwp.blueyonder.co.uk/scripts/xtermtitle.txt
-
PS1='^[]0;[EMAIL PROTECTED]: ${PWD}^Gksh$ '
-
where ^[ is used instead of \033 and ^G instead of \007
but I tried 3 systems with ksh, no go, it doesn't understand escape
characters, not with \032, not with \[\e and not with ^[ to signfy beginning
of escape code... ksh just repeats them exactly like regular characters
In bash, you can type in the following character sequence (sans the
spaces):
P S 1 = ' Ctrl-V Esc ] 0 ; $ { U S E R } @ $ { H O S T } : Space $ { P W D }
Ctrl-V Ctrl-G k s h $ Space '
To get the above prompt. Then start ksh.
in bash it's easy
PS1='\[\e]0;$PWD\a\]$PWD '# (in title) HOST-$PWD ... $PATH
I came up with the following... needs perl, needs xterm
but works in ksh, and bash too
PS1=$(perl -e 'printf \033]0;\$PWD\007\$PWD ')
Sure, that works too. You can use awk or sed instead of perl (which have
the advantage of being part of the default installation).
but i just don't know how (and someone must know how) people get the
escape codes into ksh that it works from command prompt or script with a
one line solution (and without secondary help from something like c or
perl code)
Both vi and emacs allow you to enter special characters literally. Edit
your .profile (or /etc/profile), and you're all set. The ksh-related
section of the default /etc/profile has a bug and doesn't work.
Oh, the purpose of this escape sequence is to synchronize the title with
PS1 to be the current directory on an xterm (but the question is about
escape codes, not xterm ;-) )
Again, ksh does not understand escape codes. Neither does ash. Use
literal characters.
Igor Pechtchanski
Volunteer PDKSH maintainer for Cygwin
--
http://cs.nyu.edu/~pechtcha/
|\ _,,,---,,_[EMAIL PROTECTED]
ZZZzz /,`.-'`'-. ;-;;,_[EMAIL PROTECTED]
|,4- ) )-,_. ,\ ( `'-' Igor Pechtchanski, Ph.D.
'---''(_/--' `-'\_) fL a.k.a JaguaR-R-R-r-r-r-.-.-. Meow!
If there's any real truth it's that the entire multidimensional infinity
of the Universe is almost certainly being run by a bunch of maniacs. /DA
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
Re: escape codes in ksh \033]0;\$PWD\007\$PWD
Robert Body wrote:
I have not been able to figure out how to send escape codes to ksh
I saw a syntax for ksh on
http://www.steveshilling.pwp.blueyonder.co.uk/scripts/xtermtitle.txt
-
PS1='^[]0;[EMAIL PROTECTED]: ${PWD}^Gksh$ '
I don't think ksh supports pasrsing of escape characters in environment
variables - but you'd have to ask Igor to be sure. That means you have
to insert the literal escape character.
When you do this most shells will display it as ^[ even though it's
actually just one character, which is the source of your confusion. For
example, at a bash prompt:
PS1='^[[33mYellow! $ ' ksh
(where again ^[ is not ^ and [ but control-v then escape)
But what you probably want to do is set this in the .profile or
whatever. To do that you'll have to do whatever incantation your chosen
text editor uses for inserting raw characters. I think vim uses ^V too
- but I don't know because I don't use vim.
Brian
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
