extracting specific lines from a file

Shell Programming and Scripting
1

hi all,

i searched in unix.com and accquired the following commands for extracting specific lines from a file ..

sed -n '16482,16482p' in.sql > out.sql
awk 'NR>=10&&NR<=20' in.sql > out.sql....

these commands are working fine if i give the line numbers as such .. but if i pass a variable to it the it is not working...

$ echo $start
2
$ echo $stop
4
$  awk 'NR>=$start&&NR<=$stop' log20091004125917Lbuild.470.xml >temp1
$ cat temp1
$ awk 'NR>=2&&NR<=4' log20091004125917Lbuild.470.xml
<cruisecontrol>
  <modifications>
    <modification type="svn">

the command is not throwing any error nor it is giving any output. my server is solaris .. version 5.8

2

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3 
awk "NR>=$start&&NR<=$stop" log20091004125917Lbuild.470.xml >temp1

Or

awk 'NR>=start&&NR<=stop' start=$start stop=$stop log20091004125917Lbuild.470.xml >temp1

Jean-Pierre.