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Top Forums Shell Programming and Scripting How to sort out the latest one from a series of numbers? Post 302349183 by bhaskar_m on Monday 31st of August 2009 09:22:40 AM
Old 08-31-2009
How to sort out the latest one from a series of numbers?

Hi,

I have a directory which contains a number of sub directories. They are named as 1.0.0, 1.0.1, 1.0.2...1.1.0..1.1.1...1.2.0..and so on..

Basically these are the tags created at the time of release. Tags are named as major.minor.buildnumber format for modules.
Now I have to search the latest tag from different modules.
For example
latest tag between 1.0.0, 1.0.1, 1.0.2 is 1.0.2
latest tag between 1.1.0, 1.1.1, 1.1.2, 1.1.3 is 1.1.3
latest tag between 1.2.0 is 1.2.0 only
latest tag between 2.0.0, 2.0.1 is 2.0.1

I have a command which identifies the latest tag out all these.
Code:
ls -ltr | awk '{print $9}' | sort -t\. -k 1n,1n -k 2n,2n -k 3n,3n

But I need to find out the tags individually for different modules.
Hope I am clear with my requirement. How to proceed any idea? Thanks in advance.
 

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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...] tracker-tag [OPTION...] -t [[TAG] [TAG] ...] 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. The TAG arguments are optional. If no TAG argument is specified, all tags are listed. If one or more TAGs are given, all matching tags are listed. For example, this will match any tags named either foo, bar or baz: $ tracker-tag -t foo bar baz -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'talready 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. -e, --description=STRING This option ONLY applies when using --add and provides a description to go with the tag label according to STRING. -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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