i want to print the column file using awk or cut in dynamic manner
like
trmp=2;temp1=1;temp3=2
awk 'BEGIN{OFS=IFS="\t"} {print $temp,$temp1,$temp3}' client_data.txt
or cut -f $temp1,$temp2,$temp3 -d"\t" file_name .
but it is showing error , In awk can i use variable as in printing... (36 Replies)
Hello,
Can someone please help me on this.:confused:
I have a file which has more than 1 million lines (XML file).
What I need is:
Search for "abcd" in the input file > output the result into a output.txt (colloum1)
Search for "efghi" in the input file > output the result in to... (3 Replies)
Hi I'm trying to loop through a small list of id's and then pull out a few columns if the id matches that found in column 2 of the larger file. I managed to get one command to work
awk -F " " '{if ($2 == '154080196') print $2,$3,$4}' tst.txt | less
However, when I try it in a for loop I... (3 Replies)
Hi everyone,
Ok here's the scenario.
I have a control file like this.
component1,file1,file2,file3,file4,file5
component2,file1,file2,file3,file4,file5I want to do a while loop here to read all files for each component.
file_count=2
while ]
do
file_name=`cat list.txt | grep... (2 Replies)
Hello,
I am trying to redirect files to a directory by using a config file. The config files is as such:
xxxxxx,ID,PathToDirectory
xxxxxx,ID2,PathToDirectory2
and so on...
I have a variable that should match one of these IDs. I want to load this config file into an awk array, and... (2 Replies)
Hello,
it would be great if someone can help me with the following:
I want to search for the rows from fileA in column 1 of fileB and output column 2 of fileB if found in fileC. In the moment I search within the complete file. How can I change the code so only column 1 is searched?
cat fileA... (7 Replies)
hi all,
how can i use grep or awk to clean the following input data:
n<>the<>96427210 861521305 123257583
n<>obj<>79634223 861521305 79634223
n<>nmod<>68404733 861521305 68422718
where the desired results is to remove all non-numeric characters?:
96427210 861521305 123257583 ... (5 Replies)
I have a question that I am at a loss to solve. I have 3 column tab-separated data, such as:
abs nmod+n+n-commitment-n 349.200023
abs nmod+n+n-a-commitment-n 333.306429
abs into+ns-j+vn-pass-rb-divide-v 295.57316
abs nmod+n+ns-commitment-n 182.085018
abs nmod+n+n-pledge-n ... (2 Replies)
Hi have a large spreadsheet which has 4 columns
APM00111803814 server_2 96085 Corp IT Desktop and Apps
APM00111803814 server_2 96085 Corp IT Desktop and Apps
APM00111803814 server_2 96034 Storage Mgmt Team
APM00111803814 server_2 96152 GWP... (6 Replies)
I am having trouble extracting the value in the columns declared in a variable. I have tried several different variation of awk but both give me the column number and not the actual value of that column.
Any suggestions?
Neither of the "extract" variables below are performing as desired
... (5 Replies)
Discussion started by: ncwxpanther
5 Replies
LEARN ABOUT CENTOS
bytes
bytes(3pm) Perl Programmers Reference Guide bytes(3pm)NAME
bytes - Perl pragma to force byte semantics rather than character semantics
NOTICE
This pragma reflects early attempts to incorporate Unicode into perl and has since been superseded. It breaks encapsulation (i.e. it
exposes the innards of how the perl executable currently happens to store a string), and use of this module for anything other than
debugging purposes is strongly discouraged. If you feel that the functions here within might be useful for your application, this possibly
indicates a mismatch between your mental model of Perl Unicode and the current reality. In that case, you may wish to read some of the perl
Unicode documentation: perluniintro, perlunitut, perlunifaq and perlunicode.
SYNOPSIS
use bytes;
... chr(...); # or bytes::chr
... index(...); # or bytes::index
... length(...); # or bytes::length
... ord(...); # or bytes::ord
... rindex(...); # or bytes::rindex
... substr(...); # or bytes::substr
no bytes;
DESCRIPTION
The "use bytes" pragma disables character semantics for the rest of the lexical scope in which it appears. "no bytes" can be used to
reverse the effect of "use bytes" within the current lexical scope.
Perl normally assumes character semantics in the presence of character data (i.e. data that has come from a source that has been marked as
being of a particular character encoding). When "use bytes" is in effect, the encoding is temporarily ignored, and each string is treated
as a series of bytes.
As an example, when Perl sees "$x = chr(400)", it encodes the character in UTF-8 and stores it in $x. Then it is marked as character data,
so, for instance, "length $x" returns 1. However, in the scope of the "bytes" pragma, $x is treated as a series of bytes - the bytes that
make up the UTF8 encoding - and "length $x" returns 2:
$x = chr(400);
print "Length is ", length $x, "
"; # "Length is 1"
printf "Contents are %vd
", $x; # "Contents are 400"
{
use bytes; # or "require bytes; bytes::length()"
print "Length is ", length $x, "
"; # "Length is 2"
printf "Contents are %vd
", $x; # "Contents are 198.144"
}
chr(), ord(), substr(), index() and rindex() behave similarly.
For more on the implications and differences between character semantics and byte semantics, see perluniintro and perlunicode.
LIMITATIONS
bytes::substr() does not work as an lvalue().
SEE ALSO
perluniintro, perlunicode, utf8
perl v5.16.3 2013-02-26 bytes(3pm)