Select only the lines of a file starting with a field which is matcing a list. awk? Post: 302916771

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Top Forums Shell Programming and Scripting Select only the lines of a file starting with a field which is matcing a list. awk? Post 302916771 by phaethon on Thursday 11th of September 2014 10:57:18 PM

09-11-2014

Registered User

Select only the lines of a file starting with a field which is matcing a list. awk?

Hello
I have a large file1 which has many events like "2014010420" and following lines under each event that start with text . It has this form:

Code:

2014010420 num --- ---  num   ....

NTE           num num --- num...      
EFA           num num ---  num  ...   
LASW         num num ---  num ... 
   
2014010450  num num num  ...                                    
   
STR           num num ---  num ..
KRP           num num --- num ...

2014012940  num num --- num  ... 
 
SARA       num num --- num ...
TREN        num num --- num.......

("-"=space)
and another file2 which is the list of the events that need to be selected, it has the form:

Code:

2014010420
2014012450...

I need using the list of the events at file 2 to select the events and their following lines (only until the next event) of file1. The format must remain the same. thanks in advance for yr help

Last edited by Scrutinizer; 09-12-2014 at 12:25 AM.. Reason: CODE tags

phaethon

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LEARN ABOUT DEBIAN

igawk

IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME

       igawk - gawk with include files

SYNOPSIS

       igawk [ all gawk options ] -f program-file [ -- ] file ...
       igawk [ all gawk options ] [ -- ] program-text file ...

DESCRIPTION

       Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).

       AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like

	      @include getopt.awk

       in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.

OPTIONS

       See gawk(1) for a full description of the AWK language and the options that gawk supports.

EXAMPLES

       cat << EOF > test.awk
       @include getopt.awk

       BEGIN {
	    while (getopt(ARGC, ARGV, "am:q") != -1)
		 ...
       }
       EOF

       igawk -f test.awk

SEE ALSO

       gawk(1)

       Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.

AUTHOR

       Arnold Robbins (arnold@skeeve.com).

Free Software Foundation					    Nov 3 1999								  IGAWK(1)

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