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Date: Wed, 20 Mar 2013 19:28:27 +0100
From: Eric Smith <Eric.Smith@trustfood.org>
To: Zsh Users <zsh-users@zsh.org>
Subject: truncating string in .zprofile
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User-Agent: Mutt/1.5.21 (2010-09-15)

I have the following prexec() in my profile;
preexec () { print -Pn "\033k\033\134\033k[$1]\033\134" }

This prints the command in the screen caption for that window.

What I want to do is limit this window title to n chars.

However, I cannot manipulate the `$1' in the print string.
Even if I try.
substring=$1
preexec () { print -Pn "\033k\033\134\033k[$substring]\033\134" }

then there is no value printed for $substring.

What is the solution?

Thank 
Eric Smith