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)
Hello,
I have a matrix 200*10,000 and I need to extract the columns between 40 and 77. I dont want to write in awk all the columns. eg: awk '{print $40, $41, $42,$43 ... $77}'. I think should exist a better way to do this. (10 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 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 HPUX
read
read(1) General Commands Manual read(1)NAME
read - read a line from standard input
SYNOPSIS
var ...
DESCRIPTION
reads a single line from standard input. The line is split into fields as when processed by the shell (refer to shells in the first field
is assigned to the first variable var, the second field to the second variable var, and so forth. If there are more fields than there are
specified var operands, the remaining fields and their intervening separators are assigned to the last var. If there are more vars than
fields, the remaining vars are set to empty strings.
The setting of variables specified by the var operands affect the current shell execution environment.
Standard input to can be redirected from a text file.
Since affects the current shell execution environment, it is usually provided as a normal shell special (built-in) command. Thus, if it is
called in a subshell or separate utility execution environment similar to the following, it does not affect the shell variables in the
caller's environment:
Options
recognizes the following options:
Do not treat a backslash character in any special way.
Consider each backslash to be part of the input line.
Opperands
recognizes the following operands:
var The name of an existing or nonexisting shell variable.
EXTERNAL INFLUENCES
Environment Variables
determines the internal field separators used to delimit fields.
RETURN VALUE
exits with one of the following values:
0 Successful completion.
>0 End-of-file was detected or an error occurred.
EXAMPLES
Print a file with the first field of each line moved to the end of the line.
while read -r xx yy
do
printf "%s %s
" "$yy" "$xx"
done < input_file
SEE ALSO csh(1), ksh(1), sh(1), sh-posix(1).
STANDARDS CONFORMANCE read(1)