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Top Forums Shell Programming and Scripting find pattern, delete line with pattern and line above and line below Post 302281331 by nickg on Wednesday 28th of January 2009 04:27:31 PM
Old 01-28-2009
find pattern, delete line with pattern and line above and line below

I have a file that will sometimes contain a pattern. The pattern is this:


FRM CHK 0000



I want to find any lines with this pattern, delete those lines, and also delete the line above and the line below.
 

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lptest(1B)					     SunOS/BSD Compatibility Package Commands						lptest(1B)

NAME
lptest - generate line printer ripple pattern SYNOPSIS
/usr/ucb/lptest [ length [count]] DESCRIPTION
The lptest utility writes the traditional ripple test pattern to the standard output. In 96 lines, the ripple test pattern prints all 96 printable ASCII characters in each position. The ripple test pattern was originally created to test printers. It is also useful for test- ing terminals, driving terminal ports, debugging, and performing tasks that require a quick supply of random data. This command is obsolete. OPTIONS
length Specifies the length of the output line in characters. 79 characters is the default. count Specifies the number of output lines. 200 lines is the default. If count is specified, length must also be specified. EXIT STATUS
The following exit values are returned: 0 Successful completion. non-zero An error occurred. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscplp | +-----------------------------+-----------------------------+ SEE ALSO
attributes(5) SunOS 5.10 9 Sep 1996 lptest(1B)
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