sed question

[David W. Tamkin]

rouben at math16.math.umbc.edu (Rouben Rostamian) wrote in
<1991May16.043510.16184 at umbc3.umbc.edu>:

| In article <3880 at wb3ffv.ampr.org> wmark at wb3ffv.ampr.org (Mark Winsor) writes:
| >I know that 
| >
| >sed -n '/PATTERN1/,/PATTERN2/p' filename
| >
| >will print everything between pattern 1 & 2, but what if I only want the
| >first occurence of these patterns in the file? I know I can pipe the above
| >statement to sed '/PATTERN2/q' but there has got to be a way to do this
| >in one sed process. Thanks.

| Here it is -- one sed process:
| 
| sed -n -e '
| /PATTERN1/,/PATTERN2/{
| p
| :loop
| n
| /PATTERN2/!{
| p
| bloop
| }
| p
| q
| }' <filename

sed -n '/PATTERN1/,/PATTERN2/p
/PATTERN2/q' filename

David Tamkin  PO Box 7002  Des Plaines IL  60018-7002  dattier at vpnet.chi.il.us
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