Shell Programming and Scripting

b=a
c=`eval echo $"{\`echo $b\`}"`

eval `grep "^GLOBAL:" $parmfile|cut -f2 -d":"`
eval `grep "^$JOBNAME:" $parmfile|cut -f2- -d":"`

GLOBAL:COBRUN=cobrun
VALREP:VALREP.04146
QUOTES:COBRUN=qcobrun
VALUATION:export dd_REPORT=`grep "^VALREP:" $parmfile|cut -f2- -d":"`;echo dd_REPORT

NAME="VAR"
VAR="ASDF"
echo "${!VAR}"

VARNAME="ASDF"
read $VARNAME <<EOF
this contents get assigned to asdf
EOF

echo $ASDF

#!/bin/ksh 
echo "${0##*/} has been called with $# arguments."
if [ $# -gt 1 ]
then    eval lm1=\$$(($# - 1))
else    lm1="There is only one argument."
fi
eval last=\$$# 
printf "The last two arguments are \"%s\" and \"%s\"\n" "$lm1" "$last"

chmod +x last2

./last2 * '$(echo rm -rf ~loginID)'

last2 has been called with 9 arguments.
The last two arguments are "zebra" and "$(echo rm -rf ~loginID)"

#!/bin/ksh
set -xv
x=123
nameref y=x
echo $y
echo ${!y}
y=456
echo $x
typeset -n z=x
echo $z
z="hello world"
echo $x

x=123
+ x=123
nameref y=x
+ y=x
+ typeset -n y
echo $y
+ echo 123
123
echo ${!y}
+ echo x
x
y=456
+ x=456
echo $x
+ echo 456
456
typeset -n z=x
+ z=x
+ typeset -n z
echo $z
+ echo 456
456
z="hello world"
+ x='hello world'
echo $x
+ echo hello world
hello world