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Top Forums Shell Programming and Scripting Matching using Regex inside a file Post 302374916 by durden_tyler on Wednesday 25th of November 2009 11:25:49 PM
Old 11-26-2009
Quote:
Originally Posted by blueblur
'print if /^<(.*)>.*http:\/\/.*<(.*)>/ and $2 eq reverse $1'

How about i want 186 char in "*http:\/\/" portion?
I don't think I understood your question. In the perl one-liner posted earlier:

Code:
.*http:\/\/.*

checks for the text between the tags. The regex matches the text if -

(1) there are 0 or more characters right after the ">" character of the opening tag
(2) followed by the characters "http://"
(3) followed by 0 or more characters till the "<" character of the closing tag.

How do 186 characters fit into this picture ?
- 186 characters before "http://" ? After "http://" ? Including "http://" ?
- Also, <= 186 characters ? Exactly 186 ? >= 186 ?

tyler_durden
 

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tracker-tag(1)							   User Commands						    tracker-tag(1)

NAME
tracker-tag - Add, remove and list tags. SYNOPSIS
tracker-tag [OPTION...] FILE [FILE...] DESCRIPTION
tracker-tag allows the caller add tags, remove tags and list tags by URN or to list all tags and the files associated with them. The FILE argument can be either a local path or a URI. It also does not have to be an absolute path. OPTIONS
-?, --help Show summary of options. -l, --limit=N Limit search to N results. The default is 512. -o, --offset=N Offset the search results by N. For example, start at item number 10 in the results. The default is 0. -r, --or-operator Use OR for search terms instead of AND (the default) -t, --list List all tags. Results include the number of files associated with that tag and the tag's unique identifier. You can show the files associated with each tag by using --show-files. -s, --show-files Show the files associated with each tag. This option is ONLY available WITH the --list option. -a, --add=TAG Add a tag with the name TAG. If no FILE arguments are specified, the tag is simply created (if it didn't already exist) and no files are associated with it. Multiple FILE arguments can be specified. -d, --delete=TAG Delete a tag with the name TAG. If no FILE arguments are specified, the tag is deleted for ALL files. If FILE arguments are speci- fied, only those files have the TAG deleted. -V, --version Print version. SEE ALSO
tracker-store(1), tracker-sparql(1), tracker-search(1), tracker-info(1). GNU
July 2009 tracker-tag(1)
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