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Top Forums Shell Programming and Scripting Using Bash/Sed to delete between identical strings Post 302496076 by Zykr on Saturday 12th of February 2011 05:14:36 AM
Old 02-12-2011
Question Using Bash/Sed to delete between identical strings

Hi. I'm hoping that someone can help me with a bash script to delete a block of lines from a file.

What I want to do is delete every line between two stings that are the same,
including the line the first string is on but not the second.


(Marked lines to match with !)
For example if I have:

fish
! cat
dog
ferret
lion
etc
! cat
kitten
zebra


What I'm looking to get is:

fish
cat
kitten
zebra

I've been trying to work out how to do this with sed but haven't had much luck.
Some 3-4 hours in, the closest I've gotten is deleting between the strings, or deleting both strings. Smilie



Thanks for reading. -Zykr
 

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asadmin-delete-domain(1AS)					   User Commands					asadmin-delete-domain(1AS)

NAME
asadmin-delete-domain, delete-domain - deletes the givendomain SYNOPSIS
delete-domain [--terse=false] [--echo=false] [--domaindir install_dir/domains] domain_name delete-domain deletes the specified domain. The domain must already exist and must be stopped. This command is supported in local mode only. OPTIONS
--domaindir directory where the domain is to be deleted. If specified, path must be accessible in the filesystem. If not speci- fied, the domain in the default install_dir/domains directory is deleted. --terse indicates that any output data must be very concise, typically avoiding human-friendly sentences and favoring well- formatted data for consumption by a script. Default is false. --echo setting to true will echo the command line statement on the standard output. Default is false. OPERANDS
domain_name name of the domain. Must be a unique name. Example 1: Using delete-domain asadmin> delete-domain sampleDomain deleted domain sampleDomain successfully Where: the sampleDomain domain is deleted. EXIT STATUS
0 command executed successfully 1 error in executing the command asadmin-create-domain(1AS), asadmin-start-domain(1AS), asadmin-stop-domain(1AS), asadmin-list-domains(1AS) J2EE 1.4 SDK March 2004 asadmin-delete-domain(1AS)
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