Shell Programming and Scripting

sorry,

I meant how to find out both. And how can I find out which version I am using of ksh?

thanks

Assuming STRING is "ABC=DEF":

Code:

echo $STRING | awk -F"=" '{ print $1 }'

Will give you the text before the equals sign and:

Code:

echo $STRING | awk -F"=" '{ print $2 }'

or

Code:

echo $STRING | awk -F"=" '{ print $NF }'

will give you the value after the equals sign.

Both ...
With the AT&T ksh93 and mksh(MIRBSD KSH) you can remove the single quote(s) like this:

Code:

$ s="a'b'c'"
$ print -- $s           
a'b'c'
$ print -- ${s//\'}
abc

With ksh88 and pdksh I suppose you should use an external command (tr -d ?).

Regarding the second one:

Code:

$ s=a=b
$ print -- $s
a=b
$ print ${s%=*}
a
$ print ${s#*=} 
b

If the following command works, you have ksh93:

Code:

print ${.sh.version}

If the above command throws an error, you could run this one:

Code:

print $KSH_VERSION

It will return not an empty string if you have pdksh or mksh.

If neither of which works, you have ksh88. To get the exact version you'll need to set the editing mode (for example to vi):

Code:

set -o vi

... and then press the Esc key, followed by Ctrl+V.


Hope this helps.

many thanks, that helped, and I also found out my version is Version M-11/16/88i