Hi,
I am new to unix and I need help in solving below mentioned issue, really appreciate ur help.
I have a file
sam, john, 2324, 07142007
tom, thomson, 2343, 07142007
john, scott, 2478, 07142007
its a comma delimited file, I need to extract the last column from each line and this... (4 Replies)
Hello,
I have parsed an xml file using perl to get the hash values and the output looks like this
$VAR1 = {
'RT' => {
'List' => {
'String' => ... (1 Reply)
Hi everyone,
i am new to perl programming, i have a problem in extracting single column from csv file. the column is the 20th column,
please help me..
at present i use this code
#!C:/perl/bin
use warnings;
use strict;
my $file1 = $ARGV;
open FILE1, "<$file1"
or die "Can't... (13 Replies)
Hello,
I have 2 columns (1st column has multiple entries but the corresponding values in the column 2 may be the same or different.) however I want to extract unique values for each entry in column 1 by assigning the max value from column 2
SDF4 -0.211654
SDF4 0.978068
... (1 Reply)
Hello Gurus
I have a source file which has the first line as header and the rest are the records
I need to extract the first column from the second line to extract a value
I/P
... (7 Replies)
Hi Guys,
I am stuck in a problem.
I have a variable in Perl script which has value for example
X=a-b-c;
Now, I want to extract a b c separately into different 3 variables. I know this can be done in shell using awk but Perl behaves a bit different.
Can anybody help me on this please?... (3 Replies)
Hi,
I am trying with the below Perl one-liner using regular expression to extract the first and second column of a text file:
perl -p -e "s/\s*(\w+).*/$1/"
perl -p -e "s/\s*.+\s(.+)\s*/$1\n/"
whereas the text file's data looks like:
Error: terminated 2233
Warning: reboot 3434
Warning:... (3 Replies)
Hello friends,
I have a text file with many columns (no. columns vary from row to row) separated by space. I need to collect all the values from 18th column to the end from each line and group them as pairs and then numbering like below..
1. 18th-col-value 19th-col-value 2. 20th-col-value ... (5 Replies)
Hi,
I want to extract first column from a file and redirect the output to another file in perl.
I am able to do this from command line by executing below commands.
perl -anle 'print $F' Input.dat > Output.dat
perl -ne '@F = split("\t", $_); print "$F\n";' Input.dat > Output.dat
perl -anE... (7 Replies)
In the below perl I am trying to extract and print the values AF1=, the GT value, and F or QUAL diveded by 33 (rounded to the nearest whole #). The GT value is at the end after the GT:PL so all the possibilities are read into a hash h, then depending on the value that is in the line the... (1 Reply)
Discussion started by: cmccabe
1 Replies
LEARN ABOUT OSX
colrm
COLRM(1) BSD General Commands Manual COLRM(1)NAME
colrm -- remove columns from a file
SYNOPSIS
colrm [start [stop]]
DESCRIPTION
The colrm utility removes selected columns from the lines of a file. A column is defined as a single character in a line. Input is read
from the standard input. Output is written to the standard output.
If only the start column is specified, columns numbered less than the start column will be written. If both start and stop columns are spec-
ified, columns numbered less than the start column or greater than the stop column will be written. Column numbering starts with one, not
zero.
Tab characters increment the column count to the next multiple of eight. Backspace characters decrement the column count by one.
ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7).
EXIT STATUS
The colrm utility exits 0 on success, and >0 if an error occurs.
SEE ALSO awk(1), column(1), cut(1), paste(1)HISTORY
The colrm command appeared in 3.0BSD.
BSD August 4, 2004 BSD