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Top Forums Shell Programming and Scripting Delete lines above and below specific line of text Post 302965106 by Don Cragun on Saturday 23rd of January 2016 09:53:10 PM
Old 01-23-2016
Sometimes, good old ed is simpler:
Code:
#!/bin/ksh
ed -s file <<-"EOF"
	g/<MEMO>BALANCE/.-6,.+9d
	1,$p
EOF

Although written and tested using the Korn shell, this will work with any shell that uses basic Bourne shell syntax. It will also work with ex instead of ed.
 

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let(1)                                                             User Commands                                                            let(1)

NAME
let - shell built-in function to evaluate one or more arithmetic expressions SYNOPSIS
ksh let arg... DESCRIPTION
ksh Each arg is a separate "arithmetic expression" to be evaluated. EXIT STATUS
The following exit values are returned: 0 The value of the last expression is non-zero. 1 The value of the last expression is zero. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
ksh(1), set(1), typeset(1), attributes(5) SunOS 5.10 15 Apr 1994 let(1)
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