Question

How to delete all lines below a word except last line in a file. suppose i have a file which contains

| 02/04/2010 07:24:20 | 20-24 |         26 |       13 |        2.60 | 
| 02/04/2010 07:24:25 | 25-29 |          6 |        3 |        0.60 | 
+---------------------+-------+------------+----------+-------------+

02-04-2010-07:24 --- ER GW 03

+---------------------+-------+------------+----------+-------------+
| date                | sec   | BOTH_MO_MT | MO_or_MT | TPS_PER_SEC |
+---------------------+-------+------------+----------+-------------+
| 02/04/2010 07:00:00 | 00-04 |         28 |       14 |        2.80 | 
| 02/04/2010 07:00:05 | 05-09 |         27 |       14 |        2.70 | 
...
...
...
...
END OF TPS PER 5 REPORT

and I need to delete all contents from “02-04-2010-07:24 — ER GW 03” except “END OF TPS PER 5 REPORT” and save the file.
This has to be done for around 700 files. all files are same format, with datemonthday filename.

Answer 1

sed -ni '/ER GW/ b end; p; d; :end $p; n; b end' $file

$file should be the filename. E.g.:

for file in *.txt ; do
    sed -ni '/ER GW/ b end; p; d; :end $p; n; b end' $file
done