write a shell script that accepts a file name starting and ending line numbers as arguments and displays all the lines between the given line numbers:b:.help is appreciated.thank you. (3 Replies)
I know this should be simple, but I've been manning sed awk grep and find and am stupidly stumped :(
I'm trying to use sed (or awk, find, etc) to find 4 characters on the second line of a file.txt 44-47 characters in. I can find lots of sed things for lines, but not characters. (4 Replies)
Hi,
I would like to know how to solve one of my problems using expert unix commands.
I have a file with occasional blank lines;
for example;
dertu
frthu
fghtu
frtty
frtgy
frgtui
frgtu
ghrye
frhutp
frjuf
I need to edit the file so that the file looks like this; (10 Replies)
Hi,
I have a file will 1000 lines.... I want to deleted some line in the file... like 800-850 lines i want to remove in that...
can somebody help me..?
thanks. (2 Replies)
hello everyone
my file contains many records, the following is a sample:
BEGIN
ASX1500000050002010120000000308450201012000177
ASX1100002000000201012000000038450201012000220
ASX1600100005000201012000000038450020101200177
ASX1900100006000201067000000058450020101200177... (2 Replies)
I'm trying to grep lines where the digits at the end of each line are greater than digits. Tried this but it will only allow me to specify 2 digits. Any ideas would greatly be appreciated. grep -i '\<\{3,4,5\}\>' file
---------- Post updated at 05:58 PM ---------- Previous update was at 05:41... (1 Reply)
Hi All,
This might be a basic question... I need to write a script to find all/any Speacial/Null/Control Chars and Print Line Numbers from an input file.
Output something like
Null Characters in File Name at : Line Numbers
Line = Print the line
Control Characters in File Name at : Line... (2 Replies)
Hi All,
i want to write a shell script read below file line by line and want to exclude the lines which contains empty value for MOUNTPOINT field.
i am using centos 7 Operating system.
want to read below file.
# cat /tmp/d5
NAME="/dev/sda" TYPE="disk" SIZE="60G" OWNER="root"... (4 Replies)
Discussion started by: balu1234
4 Replies
LEARN ABOUT CENTOS
text::tabs
Text::Tabs(3pm) Perl Programmers Reference Guide Text::Tabs(3pm)NAME
Text::Tabs -- expand and unexpand tabs per the unix expand(1) and unexpand(1)SYNOPSIS
use Text::Tabs;
$tabstop = 4; # default = 8
@lines_without_tabs = expand(@lines_with_tabs);
@lines_with_tabs = unexpand(@lines_without_tabs);
DESCRIPTION
Text::Tabs does about what the unix utilities expand(1) and unexpand(1) do. Given a line with tabs in it, expand will replace the tabs
with the appropriate number of spaces. Given a line with or without tabs in it, unexpand will add tabs when it can save bytes by doing so
(just like "unexpand -a"). Invisible compression with plain ASCII!
EXAMPLE
#!perl
# unexpand -a
use Text::Tabs;
while (<>) {
print unexpand $_;
}
Instead of the "expand" comand, use:
perl -MText::Tabs -n -e 'print expand $_'
Instead of the "unexpand -a" command, use:
perl -MText::Tabs -n -e 'print unexpand $_'
LICENSE
Copyright (C) 1996-2002,2005,2006 David Muir Sharnoff. Copyright (C) 2005 Aristotle Pagaltzis This module may be modified, used, copied,
and redistributed at your own risk. Publicly redistributed modified versions must use a different name.
perl v5.16.3 2013-03-04 Text::Tabs(3pm)