From: Buddy Mills (ramill@wm.edu)
Date: Tue Dec 16 2003 - 10:30:17 EST
I need some help producing a output (file2) from a file (file1). The following is an except from the file. This file is a logfile that avg. about 4 entries per second.
...
<< Loop# 31 Addr# 15 Loc# 532 On-Line * TP# 1 12/16/03 10:02
VALID
Tend# 18 (external) amt $1.00 trans amt $1.00 tax $0.00
<< Loop# 1 Addr# 1 Loc# 306 On-Line * TP# 2 12/16/03 10:03
VALID
Tend# 1 (internal) ID# 930168453-0 amt $0.01 trans amt $0.01 tax $0.00
<< Loop# 1 Addr# 1 Loc# 306 On-Line * TP# 2 12/16/03 10:03
VALID
Tend# 1 (internal) ID# 930135839-0 amt $0.01 trans amt $0.01 tax $0.00
...
I am tail(ing) and grep(ing) for the "930168453" in this file in a "while" statement. When it sees this number it then needs to pull three lines into a file. The line that it grep it found the "930268453" and the two previous line, and only those three line into a file to send to an email.
Example of needed output:
<< Loop# 1 Addr# 1 Loc# 306 On-Line * TP# 2 12/16/03 10:03
VALID
Tend# 1 (internal) ID# 930168453-0 amt $0.01 trans amt $0.01 tax $0.00
These three lines may not always be the middle group, they may be at the bottom or top of several scores of these groupings.
I have work out all the parts except how to look at the line I want and pull the previous two lines also. Can anyone help with this?
Many thanks
Buddy Mills
The College of William and Mary
ramill@wm.edu 757.221.2099
http://wmexpress.wm.edu
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