Some tips of Ksh

In a function, if you do not want local variables to affect global or environment variables, you can use typeset to define them. For functions or scripts with multiple parameters, there are two ways to handle multiple input parameters: first, by using the following methods:

while (($#!= 0)) Does # process shift done another way is to use the following:

While Getopts:a:b:c:d:e:e:c:i:g:l:m:r:hd:v OPT; Do case $OPT in A) export e_config=${optarg};; B) banner=$ (echo "$OPTARG" | tr '% ');; C) mach= "-M $OPTARG"; Machname= $OPTARG;; D) dbdir= $OPTARG;; G) trcellgen= $OPTARG;; i) iconic= '-iconic ';; L) lab3bem= $OPTARG;; M) nummobilesub= $OPTARG;; Esac Done Shift OPTIND-1