UNIX for Dummies Questions & Answers

Hi, i have a data file

cat f1.txt
$V01$S
this is 1
$v02$D
this is 2
$v03$F
this is 3

I have a variable $PARM which contains value say 'V01'
I have to print lines from f1.txt that start with '$'<${PARM}>'$'

How do i get matching lines from f1.txt that start with '$' then with ${PARM} variable value and then followed by '$'
I also have to get the next line

Code:

cat f1.txt | sed -n -e '/$${PARM}$/{N;p;}'

doesn't work

Thanks,
-srinivas yelamanchili

Code:

user~$ PARM='V01'
user~$ grep -A1 '^\$'$PARM'\$' f1.txt
$V01$S
this is 1

If you still want a sed, here's one:

Code:

sed -n '/\$'$PARM'\$/{N;p;}' f1.txt