sed or awk to parse this text Post: 302449521

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Top Forums Shell Programming and Scripting sed or awk to parse this text Post 302449521 by agama on Monday 30th of August 2010 10:42:48 PM

08-30-2010

Registered User

This is a quick example. There are probably other ways to do it, but this is straight forward:

Code:

awk '
        /^[*]/ {                            # new section 
                if( snarf )
                        printf( "\n" );         # terminate the last section
                snarf = 1;                      # open the section
                n = index( $0, "-" );           # find first -
                printf( "%s ", substr( $0, n+1 ) );     # print everything after the first dash
                next;
        }

        NF == 0 { 
             if( snarf )
             {
                  snarf = 0; 
                  printf( "\n" );
              }
              next; 
       }     #terminate section on blank line

        snarf > 0 {                         # if in section print this line. 
                printf( "%s ", $0 );
                next;
        }

        END {
                if( snarf )                    # need to finish the last section with newline
                        printf( "\n" );
        }
'

It does assume that each section starts with an asterisk (*) and that if it is continued onto multiple lines the section ends with the next asterisk or a blank line. The output from each section is put on one line (no intermediate newlines) even if it was on multiple lines in the input. Each section is placed on a separate line.

Hope this helps.

Last edited by agama; 08-30-2010 at 11:59 PM.. Reason: Clarification in description

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LEARN ABOUT OPENSOLARIS

apropos

apropos(1)							   User Commands							apropos(1)

NAME

       apropos - locate commands by keyword lookup

SYNOPSIS

       apropos keyword...

DESCRIPTION

       The apropos utility displays the man page name, section number, and a short description for each man page whose NAME line contains keyword.
       This information is contained in the /usr/share/man/windex database created by catman(1M). If catman(1M) was not run, or was run  with  the
       -n  option,  apropos  fails. Each word is considered separately and the case of letters is ignored. Words which are part of other words are
       considered; for example, when looking for `compile', apropos finds all instances of `compiler' also.

       apropos is actually just the -k option to the man(1) command.

EXAMPLES

       Example 1 To find a man page whose NAME line contains a keyword

       Try

	 example% apropos password

       and

	 example% apropos editor

       If the line starts `filename(section) ...' you can run

	 man -s section filename

       to display the man page for filename.

       Example 2 To find the man page for the subroutine printf()

       Try

	 example% apropos format

       and then

	 example% man -s 3s printf

       to get the manual page on the subroutine printf().

FILES

       /usr/share/man/windex	 table of contents and keyword database

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWdoc			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       man(1), whatis(1), catman(1M), attributes(5)

DIAGNOSTICS

       /usr/share/man/windex: No such file or directory

	   This database does not exist. catman(1M) must be run to create it.

SunOS 5.11							    20 Dec 1996 							apropos(1)