...
+ cd UU
+ . ./optdef.sh
+ usedevel=define
+ cc=/usr/bin/gcc -maix64
+ prefix=/usr/db/perl/5.24.4.0
+ : Restore computed paths
+ eval awk=$_awk
+ awk=/usr/bin/awk
... (some more variables assigned, some tools used from /opt/freeware/bin)
+ eval uname=$_uname
+ uname=/usr/bin/uname
+ eval zip=$_zip
+ zip=zip
+ cat
+ 0< /tmp/sh19793082.25
+ dflt=AIX
+ rp=Operating system name?
+ . ./myread
+ xxxm=AIX
+ echo Operating system name? [AIX]  
+ wc -c
+ test 31 -ge 80
+ echo Operating system name? [AIX] \c
+ 1>& 4
Operating system name? [AIX] + ans=!
+ ans=
+ echo  
+ 1>& 4
 
+ expr X : X!
+ 1> /dev/null
+ ans=AIX
+ + echo AIX
+ /usr/bin/sed -e s/[   ][      ]*/_/g
+ ./tr [A-Z] [a-z]