Reader Feedback and Insights: Another Compression Utility

October 18, 2002 Timothy Prickett Morgan

Hey, Ted:

There’s another free compression utility that can do the same good work on save files . It’s part of a free download from IBM .

The utility is called gzip, and it’s a part of GNU Tools. The GNU utilities can be downloaded at IBM’s Application Factory – Porting: GNU utilities download page . It appears it might be bundled with WDS V5R1.

Gzip runs in Qshell, but it is a link to a *PGM object. I’ve been able to make a copy of GNU/GZIP and call it. Just put each option-value pair inside apostrophes or single quote marks (‘). For example,

    gzip -N -q -9 '/path/file.ext'

becomes

    call gzip parm('-N' '-q' '-9' '/path/file.ext')

Another utility, cpio, packages multiple files into one, like a save file. This could also be called as a program. The advantage of Qshell is that you can pipe the one application to the other.

— Vern

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