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Full Discussion: Parsing file data
Top Forums Shell Programming and Scripting Parsing file data Post 302770515 by Yoda on Saturday 16th of February 2013 07:02:35 PM
Old 02-16-2013
Here is the explanation of code:
Code:
awk -F'=' '                                     # Set = sign as field separator.
{
        for(i=1;i<=NF;i++)                      # for i <= NF ( NF is a special variable in awk and it means number of fields in the current record )
        {
                if($i ~ /a title/)              # if $i ~ /a title/ ( ~ operator matches a pattern or regex )
                {
                        url=$(i+1);             # Set variable: url = $(i+1) which is next field value
                        gsub(/'\''| .*/,x,url); # Remove single quotes and everything followed by blank space from url variable value
                        print url;              # Print value of variable: url
                }
        }
}' filename

Check awk manual pages for further reference:
Code:
man awk

This User Gave Thanks to Yoda For This Post:
 

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ATF-SH(1)						    BSD General Commands Manual 						 ATF-SH(1)

NAME
atf-sh [-s shell] -- interpreter for shell-based test programs SYNOPSIS
atf-sh script DESCRIPTION
atf-sh is an interpreter that runs the test program given in script after loading the atf-sh(3) library. atf-sh is not a real interpreter though: it is just a wrapper around the system-wide shell defined by ATF_SHELL. atf-sh executes the inter- preter, loads the atf-sh(3) library and then runs the script. You must consider atf-sh to be a POSIX shell by default and thus should not use any non-standard extensions. The following options are available: -s shell Specifies the shell to use instead of the value provided by ATF_SHELL. ENVIRONMENT
ATF_LIBEXECDIR Overrides the builtin directory where atf-sh is located. Should not be overridden other than for testing purposes. ATF_PKGDATADIR Overrides the builtin directory where libatf-sh.subr is located. Should not be overridden other than for testing purposes. ATF_SHELL Path to the system shell to be used in the generated scripts. Scripts must not rely on this variable being set to select a specific interpreter. EXAMPLES
Scripts using atf-sh(3) should start with: #! /usr/bin/env atf-sh Alternatively, if you want to explicitly choose a shell interpreter, you cannot rely on env(1) to find atf-sh. Instead, you have to hardcode the path to atf-sh in the script and then use the -s option afterwards as a single parameter: #! /path/to/bin/atf-sh -s/bin/bash ENVIRONMENT
ATF_SHELL Path to the system shell to be used in the generated scripts. SEE ALSO
atf-sh(3) BSD
September 27, 2014 BSD
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