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Full Discussion: indexing a file
Top Forums Shell Programming and Scripting indexing a file Post 302576900 by Johanni on Sunday 27th of November 2011 11:20:09 AM
Old 11-27-2011
indexing a file

hello guys,

I have a file like this:

input.dat

Code:
Push-to-talk 
No
Coonection
IP support 
Support for IP telephony 
Yes 
Built-in SIP stack 
Yes 
Support via software 
Yes 
Microsoft
Support for Microsoft Exchange 
Yes 
UMA 
No 
Internet
Internet connection
WAP 
Yes 
Weight 
129 g 
GUI type
Display 
Colour 
Number of colours 
262144 
Display technology 
LCD
Display Resolution
Screen resolution  
320x480 pixels  
Screen size  
3.2 inches  
Touchscreen  
Yes  
Simultaneous touch points  
3+ Multi-touch  
Type of technology  
Capacitive

and the feature list is:

featureList.dat

Code:
Speaker
Support for IP telephony 
Support for Microsoft Exchange 
UMA 
WAP 
Weight 
Bluetooth
Dimension
Display technology 
Screen resolution  
Screen size  
Touchscreen  
Type of technology
USB connsection


and the desired output is:

output.dat:


Code:
null
Yes
Yes
No
Yes
129 g
null
null
LCD 
320x480 pixels
3.2 inches
Yes
Capacitive
null

I want to see what are the values of the features in the input file (features have their values in the line below them)

if the feature does not exist then the value would be "null"

there are some features in the input that are not in the featureList.dat, so just the desired features are the subject for the extraction.

I came up to this code by the help of Ahamed, but I have problem with it Smilie

Code:
awk '{gsub(/[ ]*$/,"")}NR==FNR{x=$0;getline;getline;a[x]=$0;next}{print a[$0]?a[$0]:"null"}'  file1 file2

 

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RAKE(1) 						 Ruby Programmers Reference Guide						   RAKE(1)

NAME
rake -- Ruby Make SYNOPSIS
rake [--f Rakefile] [--version] [-CGNPgnqstv] [-D [PATTERN]] [-E CODE] [-I LIBDIR] [-R RAKELIBDIR] [-T [PATTERN]] [-e CODE] [-p CODE] [-r MODULE] [--rules] [variable=value] target ... DESCRIPTION
Rake is a simple ruby(1) build program with capabilities similar to the regular make(1) command. Rake has the following features: o Rakefiles (Rake's version of Makefiles) are completely defined in standard Ruby syntax. No XML files to edit. No quirky Makefile syntax to worry about (is that a tab or a space?). o Users can specify tasks with prerequisites. o Rake supports rule patterns to synthesize implicit tasks. o Flexible FileLists that act like arrays but know about manipulating file names and paths. o A library of prepackaged tasks to make building rakefiles easier. OPTIONS
--version Display the program version. -C --classic-namespace Put Task and FileTask in the top level namespace -D [PATTERN] --describe [PATTERN] Describe the tasks (matching optional PATTERN), then exit. -E CODE --execute-continue CODE Execute some Ruby code, then continue with normal task processing. -G --no-system --nosystem Use standard project Rakefile search paths, ignore system wide rakefiles. -I LIBDIR --libdir LIBDIR Include LIBDIR in the search path for required modules. -N --no-search --nosearch Do not search parent directories for the Rakefile. -P --prereqs Display the tasks and dependencies, then exit. -R RAKELIBDIR --rakelib RAKELIBDIR --rakelibdir RAKELIBDIR Auto-import any .rake files in RAKELIBDIR. (default is rakelib ) -T [PATTERN] --tasks [PATTERN] Display the tasks (matching optional PATTERN) with descriptions, then exit. -e CODE --execute CODE Execute some Ruby code and exit. -f FILE --rakefile FILE Use FILE as the rakefile. -h --help Prints a summary of options. -g --system Using system wide (global) rakefiles (usually ~/.rake/*.rake ). -n --dry-run Do a dry run without executing actions. -p CODE --execute-print CODE Execute some Ruby code, print the result, then exit. -q --quiet Do not log messages to standard output. -r MODULE --require MODULE Require MODULE before executing rakefile. -s --silent Like --quiet, but also suppresses the 'in directory' announcement. -t --trace Turn on invoke/execute tracing, enable full backtrace. -v --verbose Log message to standard output (default). --rules Trace the rules resolution. SEE ALSO
ruby(1) make(1) http://rake.rubyforge.org/ REPORTING BUGS
Bugs, features requests and other issues can be logged at <http://onestepback.org/redmine/projects/show/rake>. You will need an account to before you can post issues. Register at <http://onestepback.org/redmine/account/register>. Or you can send an email to the author. AUTHOR
Rake is written by Jim Weirich <jim@weirichhouse.org> UNIX
November 7, 2012 UNIX
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