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Top Forums UNIX for Dummies Questions & Answers removing duplicate lines from a file Post 302104436 by anbu23 on Thursday 25th of January 2007 06:48:02 AM
Old 01-25-2007
Quote:
Originally Posted by ocelot
Hi,

I am trying to remove duplicate lines from a file. For example the contents of example.txt is:

this is a test
2342
this is a test
34343
this is a test
43434

and i want to remove the "this is a test" lines only and end up with the numbers in the file, that is, end up with:

2342
34343
43434

thanks
Code:
grep -v "[[:alpha:]]" file

 

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wibble-test-genrunner(1)				      General Commands Manual					  wibble-test-genrunner(1)

NAME
wibble-test-genrunner - Code generator for wibble testsuites. SYNOPSIS
wibble-test-genrunner header <file> wibble-test-genrunner main <files> DESCRIPTION
The program generates .cpp files that are then compiled and linked into a test program for running tests from .test.h files. Examples of such .test.h files may be found among wibble headers, eg. /usr/include/wibble/regexp.test.h. In the first form, the program processes a single header file (usually of the form foo.test.h) and produces a corresponding .cpp file to be compiled. In the second form, it takes as <files> all the .test.h headers and produces a single main.cpp which contains the main() function of the test program, which then runs all the tests in all the .test.h files. The generated source code is always written to standard output and it is left up to the user to redirect it to a meaningful location. The program currently has no options other than the two forms above. The program is intended to be run as part of build process of programs or libraries using the wibble testing framework. For convenient use from CMake, there is a test.cmake script under /usr/share/wibble, that takes care of producing all the .cpp files (both per-header and the main one), compiling them and linking them into a single binary which executes the testsuite. AUTHOR
Petr Rockai <me@mornfall.net> wibble-test-genrunner(1)
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