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Top Forums Shell Programming and Scripting Need some help deleting words from a line which are not my "Keyword" Post 302446523 by linuxkid on Thursday 19th of August 2010 03:26:19 AM
Old 08-19-2010
Quote:
Originally Posted by radoulov
Code:
perl -nle'
  /(?:abc|def)/ and print join " ", /(?:abc|def)[\w-]+/g      
    or print     
    ' infile

sorry to bring this up again, but since this answer theres been a few changes in my input file,mainly the addition of a new set of numbers

Code:
abcf-p-ssa-a322f-s-4312 
def-abcf-p-ssa-a322f-s-4312 
def-abcd-p-ssa-a322f-s-4312
#below is the new addition
ghi/123/xxx/sss/xa2
ghi/3d/cksdi/kff/23 def-abcd-p-ssa-a322f-s-4312

the ghi always remains at the start, so the problem is that the code you gave doesn't work because of the brackets in this new set, as I tried:
Code:
perl -nle'
  /(?:abc|def)/ and print join " ", /(?:abc|def)[\w-]+/g      
    or print     
    ' infile

but that just ignored anything with brackets! I also removed the '+' sign after [\w-] but that gave me the ghi, but not the rest of the number! Also as in teh last line, some of these may be on the same line, but your code already seems to work for that anyway (excpet when its got '/' in the number, so I need to keep that functionality)

Many thanks

Last edited by radoulov; 08-23-2010 at 06:28 AM.. Reason: Fixed code tags.
 

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apropos(1)						      General Commands Manual							apropos(1)

NAME
apropos - Locates reference pages by keyword SYNOPSIS
apropos keyword... The apropos command shows which reference pages contain instances of any of the given keywords in their purpose lines. OPTIONS
Specifies the word(s) for which apropos should search. DESCRIPTION
In looking for keywords, apropos considers each word separately and ignores the case of letters. Words that are part of other words are also considered; thus, when looking for the word compile, apropos will also find all instances of compiler. If the output of the apropos command begins with a name and reference section number, you can enter man section name. For example, if the output of the apropos command is make(1u), you can enter man 1u make to obtain the reference page on System V version of the make command. The apropos command works just like the man command with the -k option. EXAMPLES
To find reference pages with the keyword password in the purpose line, enter: apropos password FILES
Keyword database. SEE ALSO
Commands: man(1), whatis(1), catman(8) apropos(1)
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