On 9/8/2020 5:11 AM, Greg Wooledge wrote:
On Sun, Sep 06, 2020 at 01:18:22PM -0700, L A Walsh wrote:
as it's pure & directly viable in PS1 env. var.
PS1=`echo \!`
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Doesn't work if you don't have '!' support (I generally found
'!' more often did unwanted things, but I never used csh):
You're talking abuot csh-style history expansion (set -o histexpand),
right? That has nothing to do with the expansion of \! within PS1.
I've got histexpand disabled, and PS1='\! ' gives the number just fine.
Like this?
# t='\! '
# echo $t
\!
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As I said, doesn't work if you don't have '!' support.
