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Two-line prompt using Korn

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# 1  
Old 10-23-2013
Two-line prompt using Korn
I'm attempting to set up a two-line prompt using Korn.

This is what I've set up in .kshrc

Code:
PS1='$(print -n "`logname`@`hostname`:";if [[ "${PWD#$HOME}" != "$PWD" ]] then; print -n "~${PWD#$HOME}"; else; print -n "$PWD";fi;print "\n$ ")'

And in .profile,
Code:
ENV="$HOME/.kshrc"; export ENV

The hosts that in use are either running RHEL kernel 2.6.8-xx with ksh88 or 2.6.9-xx with ksh93
This works perfectly for most hosts and I get the desired output:

Code:
userx@hosty:~
$ 
userx@hosty:~
$ cd Documents/
userx@hosty:~/Documents
$

But on some hosts I get this error when I login:

Code:
-ksh: syntax error: `;' unexpected
$(print -n "`logname`@`hostname`:";if [[ "${PWD#$HOME}" 1074 "$PWD" ]] then; pr
int -n "~${PWD#$HOME}"; else; print -n "$PWD";fi;print "\n$ ")

I also noticed that != changes to a number (1074 in this example) and increases by 1 if I hit Enter.

I'm using the same syntax on all hosts and cannot figure out this error.
My guess is the difference in the ksh version.

Please help me figure out what I'm doing wrong.
Also, is there a way to force ksh to behave consistently across older versions?
# 2  
Old 10-23-2013
Get the version of ksh you are usingecho $KSH_VERSIONand change all print statements to echo and see if that'd help...
This User Gave Thanks to shamrock For This Post:
capnpepper
# 3  
Old 10-23-2013
Quote:
Originally Posted by capnpepper
I'm attempting to set up a two-line prompt using Korn.

This is what I've set up in .kshrc

Code:
PS1='$(print -n "`logname`@`hostname`:";if [[ "${PWD#$HOME}" != "$PWD" ]] then; print -n "~${PWD#$HOME}"; else; print -n "$PWD";fi;print "\n$ ")'

And in .profile,
Code:
ENV="$HOME/.kshrc"; export ENV

The hosts that in use are either running RHEL kernel 2.6.8-xx with ksh88 or 2.6.9-xx with ksh93
This works perfectly for most hosts and I get the desired output:

Code:
userx@hosty:~
$ 
userx@hosty:~
$ cd Documents/
userx@hosty:~/Documents
$

But on some hosts I get this error when I login:

Code:
-ksh: syntax error: `;' unexpected
$(print -n "`logname`@`hostname`:";if [[ "${PWD#$HOME}" 1074 "$PWD" ]] then; pr
int -n "~${PWD#$HOME}"; else; print -n "$PWD";fi;print "\n$ ")

I also noticed that != changes to a number (1074 in this example) and increases by 1 if I hit Enter.

I'm using the same syntax on all hosts and cannot figure out this error.
My guess is the difference in the ksh version.

Please help me figure out what I'm doing wrong.
Also, is there a way to force ksh to behave consistently across older versions?
Did you also notice the line break in the middle of print shown in red above?

Are you sure that .kshrc has the same contents on both systems?
# 4  
Old 10-23-2013
Quote:
Get the version of ksh you are using echo $KSH_VERSION and change all print statements to echo and see if that'd help...
echo $KSH_VERSION throws a blank line,
I use the vi mode, so an ESC and a CTRL +V gives me the version.
For simplicity, I'll narrow it down to the 93 versions and skip the 88 as host with the older versions are miminal.

I have a feeling its not the KSH version thats causing this.

The prompt works perfectly on:
Code:
Version AJM 93t+ 2010-02-02

It fails on
Code:
Version M 1993-12-28

Works well on some fails on others with:
Code:
Version AJM 93t+ 2010-06-21

On the hosts on which it failed, replacing print with echo ignores the newline character, throwing this output:
Code:
userx@hosty:~\n$



Quote:
Did you also notice the line break in the middle of print shown in red above?

Are you sure that .kshrc has the same contents on both systems?
I'm sorry that line break is actually the STDOUT on the terminal. I should have corrected it before pasting it here.
The .kshrc has no line breaks and is consistent on all hosts.
# 5  
Old 10-23-2013
Quote:
Originally Posted by capnpepper
On the hosts on which it failed, replacing print with echo ignores the newline character, throwing this output:
Code:
userx@hosty:~\n$


Well that's pretty close to what you want, why not now replace:
Code:
echo "\n$ "

with
Code:
echo;echo "$ "

# 6  
Old 10-23-2013
No luck

Code:
ksh93: syntax error: `end of file' unexpected
$(echo -n "`logname`@`hostname`:";if [[ "${PWD#$HOME}" 669= "$PWD" ]] then; echo -n "~${PWD#$HOME}"; else; echo -n "$PWD";fi;echo;echo "$ "

# 7  
Old 10-23-2013
Missing the close bracket

Code:
PS1='$(echo -n "`logname`@`hostname`:";if [[ "${PWD#$HOME}" 669= "$PWD" ]] then; echo -n "~${PWD#$HOME}"; else; echo -n "$PWD";fi;echo;echo "$ ")'

This User Gave Thanks to Chubler_XL For This Post:
capnpepper
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