Hello!
I wan't to extract columns from two files and later combine them for plotting with gnuplot. If the files file1 and file2 look like:
fiile1:
a, 0.62,x
b, 0.61,x
file2:
a, 0.43,x
b, 0,49,x
The desired output is
a 0.62 0.62
b 0.61 0.49
Thank you in advance! (2 Replies)
Hi ,
I have a file having around 8 columns spereated by space . Now that I need to extract columns from this. The problem is this functionality is needed in a script and the required columns are dynamic and can range from 2 columns to 8 columns at a time .
What I tried without luck is ... (6 Replies)
Friends, I have a file with fileds in the following order
sda 4.80 114.12 128.69 978424 1103384
sdb 0.03 0.40 0.00 3431 0
sda 1.00 0.00 88.00 0 176
sdb ... (14 Replies)
Hi All,
I have a text file which looks like below.
################################################
Name:xxxxxxx
Version:1.0
Class: 2
City : Bangalore
Component Part Action Nb New Part Naming Part Name
12345 default 12345.12345 Bad
23456 ... (6 Replies)
Hello,
I have 2 files file1 & file2
=
a1 b1
a2 b2
a3 b3
...
=
c1 d1
c2 d2
c3 d3
...
I need to compare if b(i)=c(j) . i,j=1,2,3,4,...
If yes, right a(i) d(j) in output file3 per line (1 Reply)
hi everyone!
I'd like to extract a single column from 5 different files and put them together in an output file. I saw a similar question for 2 input files, and the line of code workd very well, the code is:
awk 'NR==FNR{a=$2; next} {print a, $2}' file1 file2
I added the file3, file4 and... (10 Replies)
Hi All,
I have 2 files with a common column.
File 1 looks like
NAME START POS1 POS2
N1 1234 1236 1237
N2 1245 1248 1250
..
..
File 2 looks like
NAME STRING
N1 ABCDEFGH
N2 EFGHBCD
N3 PQRSSTUV
..
......
... (25 Replies)
:wall:Hi there,
I am trying to extract/filter a unique data between specific columns from a tab deliminated file, that has a number of columns:
input file as follow:
5 rs1 70 A C 7 1 1 Blue
5 rs9 66 A E ... (2 Replies)
Hi everyone!!
I need to apply a simple command to extract columns from a matrix, but I need to extract contemporary from the first to the tenth columns, than from the eleventh to the twentyth and so on...
how can i do that? (1 Reply)
Discussion started by: gabrysfe
1 Replies
LEARN ABOUT MOJAVE
english5.18
English(3pm) Perl Programmers Reference Guide English(3pm)NAME
English - use nice English (or awk) names for ugly punctuation variables
SYNOPSIS
use English;
use English qw( -no_match_vars ) ; # Avoids regex performance penalty
# in perl 5.16 and earlier
...
if ($ERRNO =~ /denied/) { ... }
DESCRIPTION
This module provides aliases for the built-in variables whose names no one seems to like to read. Variables with side-effects which get
triggered just by accessing them (like $0) will still be affected.
For those variables that have an awk version, both long and short English alternatives are provided. For example, the $/ variable can be
referred to either $RS or $INPUT_RECORD_SEPARATOR if you are using the English module.
See perlvar for a complete list of these.
PERFORMANCE
NOTE: This was fixed in perl 5.20. Mentioning these three variables no longer makes a speed difference. This section still applies if
your code is to run on perl 5.18 or earlier.
This module can provoke sizeable inefficiencies for regular expressions, due to unfortunate implementation details. If performance matters
in your application and you don't need $PREMATCH, $MATCH, or $POSTMATCH, try doing
use English qw( -no_match_vars ) ;
. It is especially important to do this in modules to avoid penalizing all applications which use them.
perl v5.18.2 2014-01-06 English(3pm)