Unix commad help - Dev Shed

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November 10th, 2005, 03:12 AM

stevefox

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Unix commad help

I want to copy a particular word which is inside the 2nd and 4th set of square brackets "[ ]" from a text file and insert the results into a new text file having each words separated by pipes "|".

e.g.
I have a text file input.txt which contains 4 line of text below:

user[1] = [Mike] group = [b] role = [Designer]
user[2] = [Peter] group = [a] role = [Supervisor]
user[3] = [Ben] group = [c] role = [Checker]
user[1] = [Mike] group = [b] role = [Supervisor]

I want to create a new text file output.txt which contains 3 line of text below:

Mike|Designer|Supervisor
Peter|Supervisor
Ben||Checker

Could someone tell me the unix or shell command to do this?

Any help will be appreciated.

November 10th, 2005, 03:36 PM

LinuxPenguin

fork while true;

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Location: England, UK

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Ooo, pipe soup, my favourite...

Actually i'll call out my baby, perl

perl Code:

Original - perl Code
#!/usr/bin/perl open(INFILE,"</path/to/file"); open(OUTFILE,">/path/to/file"); while (<INFILE>){ $_ =~ /(\ w+)\ [(\ d+)\ ]\ s= \ s\ [(\ w+)\ ]\ s (\ w+) \ s=\ s\ [(\ w+)\]/; @jobs($2) = (@jobs($2)) ? (@jobs($2) + "\|$5") : ($3 + "\|" + $5); } foreach (@jobs){ print INFILE $_; }

#!/usr/bin/perl
open(INFILE,"</path/to/file");
open(OUTFILE,">/path/to/file");
while (<INFILE>){
$_ =~ /(\ w+)\ [(\ d+)\ ]\ s= \ s\ [(\ w+)\ ]\ s (\ w+) \ s=\ s\ [(\ w+)\]/;
@jobs($2) = (@jobs($2)) ? (@jobs($2) + "|$5") : ($3 + "|" + $5);
}
 
foreach (@jobs){
print INFILE $_;
}

should do you

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