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Re: Regex to remove data

by Athanasius (Abbot)
on Nov 06, 2012 at 14:13 UTC ( #1002479=note: print w/ replies, xml ) Need Help??

in reply to Regex to remove data

Something like this should do the trick:

#! perl use strict; use warnings; my @lines = <DATA>; s/ ^ [A-Z\s]+ $ //x for @lines; print for @lines; __DATA__ AAAAAAAA AAAA AAAAAAA AAAA AAA AAA Leave me intact PLEASE


0:10 >perl Leave me intact PLEASE 0:13 >

Update 1: Note that this will also remove blank (i.e. empty) lines.

Update 2: Changed

print "@lines";


print for @lines;

to address the issue of leading spaces raised by Anonymous Monk, below.

Hope that helps,

Athanasius <°(((><contra mundum

Comment on Re: Regex to remove data
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Re^2: Regex to remove data
by Anonymous Monk on Nov 06, 2012 at 14:23 UTC
    Thanks,though it adds a leading space to each line
Re^2: Regex to remove data
by rjt (Deacon) on Nov 06, 2012 at 17:19 UTC

    This is good, but the OP did say he wanted to remove the lines from a "large file", but your approach reads the entire file into an in-memory array (@lines) and processes that.

    Check out my reply below for an example that loads only one line into memory at a time (the -n switch assumes while (<>)).

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