From: Aaron Davies <agdavi01@louisville.edu>
To: zsh-users@sunsite.dk
Subject: Execute a Command in PS1 w/o Disturbing Previous Return Value?
Date: Thu, 12 Aug 2004 23:35:26 -0400 [thread overview]
Message-ID: <D0F204E0-ECD9-11D8-83BE-000502631FBD@louisville.edu> (raw)
I'm trying to write a prompt that will do two things: include a file
frequently re-downloaded from the web, and indicate the return status
of the previous command. The problem is, if I cat out the file, it
returns 0, overwriting the return status read by the %(0?%) directive,
and guaranteeing that I will always get a prompt indicating success.
What can I do about this?
Here's the whole line. The breakdown is: current temperature, pwd, (if
last command successful, a green smiley, else a red frowny), prompt
char.
export PS1='`cat /tmp/temperature`'" %m%~ %(0?."`echo
'%{\e[1;32m%}:)%{\e[0m%}'`"."`echo \
'%{\e[1;31m%}:(%{\e[0m%}'`") %# "
(/tmp/temperature is refreshed every five minutes by a cron job, in
case you were wondering.)
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/ (_(_/|_/ (_(_) / (_ (__/_(_/|_\/ <__</_/_)_
next reply other threads:[~2004-08-13 3:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-13 3:35 Aaron Davies [this message]
2004-08-13 4:52 ` Philippe Troin
2004-08-13 17:32 ` Bart Schaefer
2004-08-14 16:07 ` Aaron Davies
2004-08-15 15:17 ` Phil!Gregory
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