$com=world $echo com com $echo $com world $x=hello $echo ${x}{com} hello{com} $echo ${x}${com} helloworld $echo $x$com helloworld $echo ${x}world helloworld $echo ${x} world hello world $echo $x world hello world $echo $xcom $echo $x com hello com $echo $x $com hello world $echo $x$com helloworld $echo $xcom $echo ${x}com hellocom $ $your_id=${USER}-on-${HOSTNAME} $echo “$your_id” jeffrin-on-debian …
Continue reading “sample session using “variable expansion” with Bash shell”