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Top Forums Shell Programming and Scripting Extract all the lines in between of 2 patterns and merge them Post 302876384 by prvnrk on Saturday 23rd of November 2013 08:51:44 PM
Old 11-23-2013
Extract all the lines in between of 2 patterns and merge them

Hi,

I have a file with many lines and need to extract lines between 2 patterns (AAA and BBB) and merge all the in-between lines into single line separated by space.

Code:
$ cat file1
blah blah blah
blah AAA
1
2
3
blah BBB
blah blah blah
blah blah blah
blah blah blah
AAA
5
6
blah blah BBB
blah blah blah

admin@admin-PC /tmp
$

And I tried the below with little success Smilie

Code:
admin@admin-PC /tmp
$ awk '/AAA/{a=1;next}/BBB/{a=0}a' file1
1
2
3
5
6

admin@admin-PC /tmp

But I need the output as below:

Code:
1 2 3
5 6

Please advise, thanks a lot!!

Last edited by prvnrk; 11-23-2013 at 10:05 PM..
 

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GIT-MERGE-FILE(1)						    Git Manual							 GIT-MERGE-FILE(1)

NAME
git-merge-file - Run a three-way file merge SYNOPSIS
git merge-file [-L <current-name> [-L <base-name> [-L <other-name>]]] [--ours|--theirs|--union] [-p|--stdout] [-q|--quiet] [--marker-size=<n>] <current-file> <base-file> <other-file> DESCRIPTION
git merge-file incorporates all changes that lead from the <base-file> to <other-file> into <current-file>. The result ordinarily goes into <current-file>. git merge-file is useful for combining separate changes to an original. Suppose <base-file> is the original, and both <current-file> and <other-file> are modifications of <base-file>, then git merge-file combines both changes. A conflict occurs if both <current-file> and <other-file> have changes in a common segment of lines. If a conflict is found, git merge-file normally outputs a warning and brackets the conflict with lines containing <<<<<<< and >>>>>>> markers. A typical conflict will look like this: <<<<<<< A lines in file A ======= lines in file B >>>>>>> B If there are conflicts, the user should edit the result and delete one of the alternatives. When --ours, --theirs, or --union option is in effect, however, these conflicts are resolved favouring lines from <current-file>, lines from <other-file>, or lines from both respectively. The length of the conflict markers can be given with the --marker-size option. The exit value of this program is negative on error, and the number of conflicts otherwise. If the merge was clean, the exit value is 0. git merge-file is designed to be a minimal clone of RCS merge; that is, it implements all of RCS merge's functionality which is needed by git(1). OPTIONS
-L <label> This option may be given up to three times, and specifies labels to be used in place of the corresponding file names in conflict reports. That is, git merge-file -L x -L y -L z a b c generates output that looks like it came from files x, y and z instead of from files a, b and c. -p Send results to standard output instead of overwriting <current-file>. -q Quiet; do not warn about conflicts. --ours, --theirs, --union Instead of leaving conflicts in the file, resolve conflicts favouring our (or their or both) side of the lines. EXAMPLES
git merge-file README.my README README.upstream combines the changes of README.my and README.upstream since README, tries to merge them and writes the result into README.my. git merge-file -L a -L b -L c tmp/a123 tmp/b234 tmp/c345 merges tmp/a123 and tmp/c345 with the base tmp/b234, but uses labels a and c instead of tmp/a123 and tmp/c345. GIT
Part of the git(1) suite Git 1.7.10.4 11/24/2012 GIT-MERGE-FILE(1)
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