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Full Discussion: awk removing data before or after a pattern
Top Forums Shell Programming and Scripting awk removing data before or after a pattern Post 302443370 by BeefStu on Sunday 8th of August 2010 01:33:58 PM
Old 08-08-2010
awk removing data before or after a pattern
I have the following data:

01:00:00 29 10 20 41
01:20:00 18 6 34 42
01:40:00 28 5 24 43
02:00:01 11 7 8 74
02:20:01 19 15 12 54
02:40:01 1 4 0 95
03:00:01 1 3 0 96
03:20:01 0 0 0 99
03:40:01 1 2 0 97

First I want to remove all data after a certain pattern, Ie 03:00 sp this
should leave me with the following results

01:00:00 29 10 20 41
01:20:00 18 6 34 42
01:40:00 28 5 24 43
02:00:01 11 7 8 74
02:20:01 19 15 12 54
02:40:01 1 4 0 95
03:00:01 1 3 0 96


Secondly I would also like to know how to remove all before the pattern
so this should leave me with the following results.

03:00:01 1 3 0 96
03:20:01 0 0 0 99
03:40:01 1 2 0 97

Note: Both these statements not be run at the same time.

Thanks to all who answer.
 

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LEARN ABOUT CENTOS

git-clean

GIT-CLEAN(1)							    Git Manual							      GIT-CLEAN(1)

NAME

       git-clean - Remove untracked files from the working tree

SYNOPSIS

       git clean [-d] [-f] [-n] [-q] [-e <pattern>] [-x | -X] [--] <path>...

DESCRIPTION

       Cleans the working tree by recursively removing files that are not under version control, starting from the current directory.

       Normally, only files unknown to Git are removed, but if the -x option is specified, ignored files are also removed. This can, for example,
       be useful to remove all build products.

       If any optional <path>... arguments are given, only those paths are affected.

OPTIONS

       -d
	   Remove untracked directories in addition to untracked files. If an untracked directory is managed by a different Git repository, it is
	   not removed by default. Use -f option twice if you really want to remove such a directory.

       -f, --force
	   If the Git configuration variable clean.requireForce is not set to false, git clean will refuse to run unless given -f or -n.

       -n, --dry-run
	   Don't actually remove anything, just show what would be done.

       -q, --quiet
	   Be quiet, only report errors, but not the files that are successfully removed.

       -e <pattern>, --exclude=<pattern>
	   In addition to those found in .gitignore (per directory) and $GIT_DIR/info/exclude, also consider these patterns to be in the set of
	   the ignore rules in effect.

       -x
	   Don't use the standard ignore rules read from .gitignore (per directory) and $GIT_DIR/info/exclude, but do still use the ignore rules
	   given with -e options. This allows removing all untracked files, including build products. This can be used (possibly in conjunction
	   with git reset) to create a pristine working directory to test a clean build.

       -X
	   Remove only files ignored by Git. This may be useful to rebuild everything from scratch, but keep manually created files.

SEE ALSO

       gitignore(5)

GIT

       Part of the git(1) suite

Git 1.8.3.1							    06/10/2014							      GIT-CLEAN(1)
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