awk '/^Line 5:/{print $0 RS "Column Name";next;}1' file
/^Line 5:/ - Check if $0 starts with 'Line 5:' then goto the {print....}
RS - Record separator (by default \n).
1 - denotes 1{print;}. Here will print all the lines except 'Line 5:'
Greetings.
I am struggling with a shell script to make my life simpler, with a number of practical ways in which it could be used. I want to take a standard text file, and pull the 'n'th word from each line such as the first word from a text file.
I'm struggling to see how each line can be... (5 Replies)
I have a csv file in which there are numbers like
078976/9XXX
098754/8XXX
I want to replace the XXX with null. I want to know the command/code to do this.
I know how to replace the whole word/number. But don't know how to replace a part of it.
Thanks in advance,
Mihir (3 Replies)
Hi,
The file format is like the following.
timestamp=2008-02-28-23.50.29.550675;category=CONTEXT;audit event=CONNECT;
event correlator=2;
database=CURDOMS;userid=inst3;authid=INST3;
origin node=0;coordinator node=0;
application id=AC122081.FA97.054468155029;application... (2 Replies)
Hi,
I am a newbie to shell scripting and to Linux environment as well.
In my project I am trying to search for following text from the httpd.conf file
<Directory '/somedir/someinnerdir'>
AllowOverride All
</Directory>
and then remove this text and again rewrite the same text.
The... (1 Reply)
New to sed...
Have a file foo.txt (below).
Need to replace text on 2 lines, but can only feed sed the first few characters of each line (all lines are unique).
So, in my example, I have put '$' in place of what I need to figure out how to feed the whole line.
What I have thus far:
sed -e... (6 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
(o) Checkout an auto part: should prompt the user for the name of the auto part
and borrower's name:
Name:... (2 Replies)
Hi all,
I'm new to shell scripting and hence this query.
I have 2 files. temp.txt and config.txt.
The values in temp.txt are tab separated.
ex: temp.txt
AB CDE GHIJ OPQRS WXY
ex:config.txt (1st line for 1st element of temp.txt and so on)
start = '1' end='5'
start = '6' end =... (26 Replies)
Hi there
I just wondered if someone could give me some perl advice
I have a bunch of text files used for a wiki that have common headings such as
---++ Title
blah
---++ Summary
blah
---++ Details
Here is the multiline
block
of text I
wish
to (6 Replies)
Hello friends, I need a BIG help from UNIX collective intelligence:
I have a CSV file like this:
VALUE,TIMESTAMP,TEXT
1,Sun May 05 16:13:05 +0000 2013,"RT @gracecheree: Praying God sends me a really great man one day. Gotta trust in his timing.
0,Sun May 05 16:13:05 +0000 2013,@sendi__... (19 Replies)
Hi All,
I have a XML file which is looks like as below. <<please see the attachment >>
<?xml version="1.0" encoding="UTF-8"?>
<esites>
<esite>
<name>XXX.com</name>
<storeId>10001</storeId>
<module>
... (4 Replies)
Discussion started by: Rajeev_hbk
4 Replies
LEARN ABOUT DEBIAN
io::capture::stdout
IO::Capture::Stdout(3pm) User Contributed Perl Documentation IO::Capture::Stdout(3pm)NAME
IO::Capture::Stdout - Capture any output sent to STDOUT
SYNOPSIS
# Generic example (Just to give the overall view)
use IO::Capture::Stdout;
$capture = IO::Capture::Stdout->new();
$capture->start(); # STDOUT Output captured
print STDOUT "Test Line One
";
print STDOUT "Test Line Two
";
print STDOUT "Test Line Three
";
$capture->stop(); # STDOUT output sent to wherever it was before 'start'
# In 'scalar context' returns next line
$line = $capture->read;
print "$line"; # prints "Test Line One"
$line = $capture->read;
print "$line"; # prints "Test Line Two"
# move line pointer to line 1
$capture->line_pointer(1);
$line = $capture->read;
print "$line"; # prints "Test Line One"
# Find out current line number
$current_line_position = $capture->line_pointer;
# In 'List Context' return an array(list)
@all_lines = $capture->read;
# More useful example 1 - "Using in module tests"
# Note: If you don't want to make users install
# the IO::Capture module just for your tests,
# you can just install in the t/lib directory
# of your module and use the lib pragma in
# your tests.
use lib "t/lib";
use IO::Capture::Stdout;
use Test::More;
my $capture = IO::Capture::Stdout->new;
$capture->start
# execute with a bad parameter to make sure get
# an error.
ok( ! $test("Bad Parameter") );
$capture->stop();
DESCRIPTION
The module "IO::Capture::Stdout", is derived from the abstract class "IO::Capture". See IO::Capture. The purpose of the module (as the
name suggests) is to capture any output sent to "STDOUT". After the capture is stopped, the STDOUT filehandle will be reset to the previ-
ous location. E.g., If previously redirected to a file, when "IO::Capture->stop" is called, output will start going into that file again.
Note: This module won't work with the perl function, system(), or any other operation
involving a fork(). If you want to capture the output from a system command,
it is faster to use open() or back-ticks.
my $output = `/usr/sbin/ls -l 2>&1`;
METHODS
new
o Creates a new capture object.
o An object can be reused as needed, so will only need to do one of these.
o Be aware, any data previously captured will be discarded if a new capture session is started.
start
o Start capturing data into the "IO::Capture" Object.
o Can not be called on an object that is already capturing.
o Can not be called while STDOUT tied to an object.
o "undef" will be returned on an error.
stop
o Stop capturing data and point STDOUT back to it's previous output location I.e., untie STDOUT
read
o In Scalar Context
o Lines are read from the buffer at the position of the "line_pointer", and the pointer is incremented by one.
$next_line = $capture->read;
o In List Context
o The array is returned. The "line_pointer" is not affected.
@buffer = $capture->read;
o Data lines are returned exactly as they were captured. You may want to use "chomp" on them if you don't want the end of line charac-
ter(s)
while (my $line = $capture->read) {
chomp $line;
$cat_line = join '', $cat_line, $line;
}
line_pointer
o Reads or sets the "line_pointer".
my $current_line = $capture->line_pointer;
$capture->line_pointer(1);
SUB-CLASSING
Adding Features
If you would like to sub-class this module to add a feature (method) or two, here is a couple of easy steps. Also see IO::Capture::Over-
view.
1 Give your package a name
package MyPackage;
2 Use this "IO::Capture::Stdout" as your base class like this:
package MyPackage;
use base qw/IO::Capture::Stdout/;
3 Add your new method like this
package MyPackage;
use base qw/IO::Capture::Stdout/;
sub grep {
my $self = shift;
for $line (
}
See Also
IO::Capture::Overview
IO::Capture
IO::Capture::Stderr
AUTHORS
Mark Reynolds reynolds@sgi.com
Jon Morgan jmorgan@sgi.com
COPYRIGHT
Copyright (c) 2003, Mark Reynolds. All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under
the same terms as Perl itself.
perl v5.8.8 2007-07-30 IO::Capture::Stdout(3pm)