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Top Forums Shell Programming and Scripting Search for a text between two strings in a file using regex Post 303043158 by Neo on Monday 20th of January 2020 07:09:18 AM
Old 01-20-2020
This would be easy if you did not try to make these text processing tasks "one liners" and just write
the (few lines) code to process the file one line at a time, using any programming language you like.

Basically, if you just processed this text in a loop, reading each line at a time, matching flags and setting patterns, you could have easily processed this file. (Or read the file into an array of lines of text.)

The issue, as I see it, is you (not only you, but many) are falling into the "trap" of looking for "one liners" instead of just writing a small program of a few lines which does the trick.

You are not the only person who falls in to the trap of thinking that everything has to be a "one liner" but this will cause you to waste time when you could write a few lines of code in any programming language and most shell scripts to:
  • Read the file into an array of lines.
  • Process each line and search for your beginning <VirtualHost tag and set a flag.
  • When the flag is set, search and match the other string(s) (SSLInsecureRenegotiation ... blah blah) and put the match(es) in an array.
  • Stop processing after the end tag </VirtualHost is matched.

This is only a few lines of code and is very easy for you (or anyone with minimal programming skills) to write and you could have easily written this code in the time it takes to search for a "one liners" to do the job.

I'm not trying to give you a hard time and I like your posts; but I'm just saying. For a guy with nearly 1000 posts here; you should just write a handful of lines of code and process this versus wasting your time searching for the perfect "one-liner" REGEX.

Cheers.
 

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gnome-search-tool(1)					      General Commands Manual					      gnome-search-tool(1)

NAME
gnome-search-tool - the GNOME Search Tool SYNOPSIS
gnome-search-tool [options] or select Search for Files... from a Main Menu or from the Places menu in a Menu Bar DESCRIPTION
GNOME Search Tool is a utility for finding files on your system. To perform a basic search, you can type a filename or a partial filename, with or without wildcards. To refine your search, you can apply additional search options. GNOME Search Tool uses the find, grep, and locate UNIX commands. The case sensitivity of the search depends on your operating system. For example, on Linux, the find, grep, and locate commands support the -i option, so all searches are case-insensitive. For full documentation see the GNOME Search Tool online help. OPTIONS
--help Show help message --named=STRING Set the text of "Name contains" search option --path=PATH Set the text of "Look in folder" search option --sortby=VALUE Sort files by one of the following: name, folder, size, type, or date --descending Set sort order to descending, the default is ascending --start Automatically start a search --contains=STRING Select and set the "Contains the text" search option --mtimeless=DAYS Select and set the "Date modified less than" search option --mtimemore=DAYS Select and set the "Date modified more than" search option --sizemore=KILOBYTES Select and set the "Size at least" search option --sizeless=KILOBYTES Select and set the "Size at most" search option --empty Select the "File is empty" search option --user=USER Select and set the "Owned by user" search option --group=GROUP Select and set the "Owned by group" search option --nouser Select the "Owner is unrecognized" search option --notnamed=STRING Select and set the "Name does not contain" search option --regex=PATTERN Select and set the "Name matches regular expression" search option --hidden Select the "Show hidden and backup files" search option --follow Select the "Follow symbolic links" search option --mounts Select the "Exclude other filesystems" search option AUTHOR
GNOME Search Tool was originally written by George Lebl (<jirka@5z.com>). Version 2 was written by Dennis M. Cranston (<den- nis_cranston@yahoo.com>). This manual page was originally written by Jochen Voss <voss@mathematik.uni-kl.de>. Version 2 was written by Dennis M. Cranston (<den- nis_cranston@yahoo.com>). SEE ALSO
find(1), locate(1), grep(1) gnome-utils 2.27.1 March 16 2009 gnome-search-tool(1)
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