Reader Feedback and Insights: Splitting a Qshell Variable
August 30, 2002 Timothy Prickett Morgan
The tech tip for splitting a Qshell variable is certainly one way to do it, but it seems to me a roundabout approach.
My first thought would be to use the “split” command in awk, but awk does not seem to be a supported language in Qshell.
Instead, I would use the “cut” command, which is supplied along with Qshell. Something like this example:
first=$(echo $name | cut -d " " -f 1) last=$(echo $name | cut -d " " -f 2)
We have to pipe the variable into the “cut” command because cut normally works on standard input or files. We have to specify the delimiter with the “-d” option if it isn’t the default, which is a tab character. The “-f ” specifies which field we want.
Note that the “cut” command also allows the chopping up of any line into fields based on absolute position.
The point of all this is “The Unix Way”–Multiple small utilities that can be rapidly strung together to get what you want.
— Tom Henderson
Thanks for sharing this technique, Tom. I played with it some more and found a simpler version of the technique I originally presented.
set $name first=$1 last=$2
It seems like any way you do it, it is a roundabout approach.
Improve Legacy Programs with Super/Windows
This newly released tool for the iSeries is used to improve user and programmer productivity and efficiency.
Pop-up windows (or selection windows) are what users want to make their jobs easier and more accurate. They have been exposed to “list boxes” when on the Internet or when using a typical windows-based program. This feature makes it so that the user does not need those sticky notes and reference material at their grasp to know what value to key in entry fields.
Programmers have been reluctant to put the selection window feature in entry programs because it takes substantial programming efforts to build the information and display it on the screen. It also requires major additions to the display files.
Super/Windows easily enables pop-up selection windows to your application programs in an affordable manner. Very few changes are required to be made to your existing RPG, COBOL, and CL programs. Changes to your display files are not needed! Your existing code or table files are used to populate the information in the windows from which your users make selection. You can also use the codes file (and maintenance program) that is included with Super/Windows. One of Super/Windows’ functions generates the program source for each file ID using a simple entry program where the file and descriptive information is recorded. The source can be modified to return additional fields.
You do not have to make wholesale changes to your application software, can optimize your staff’s existing skills, and little user training is needed. They will welcome Super/Windows with open arms!
Business Owner Benefits:
Click here to learn more about Super/Windows.