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set nohls
forever
vi .vimrc
add line:
set nohls

I'd find it very unusual that you'd be able to create a file, but not remove it. Ask your system administrator about it, it might be a misconfiguration of ACLs or the like.

With vi, you can't...

vi uses /var/tmp for storing temporary versions of the file you edit. This is what you probably mean instead of a swap file.

I think you have your file mask set incorrectly. Unless you specified...

I'm not sure what you mean by the first questions, but Windows malware won't affect Ubuntu because the file systems are very different. Ubuntu should connect to the Internet automatically, if you are...

but bash is missing in this website ???

Rosetta Stone for Scripting Languages (http://www.lurklurk.org/rosetta.html)

What is UNIX (http://en.wikipedia.org/wiki/UNIX)
History of UNIX (https://www.unix.com/unix-dummies-questions-answers/7-short-history-unix-l-madden-ic-ac-uk.html)
Various UNIX...

ls -lS|head -6


You need -6 as there will be a total line from ls. You could always 'grep -v total' if you don't want to see it.

The -S option causes ls to sort by the file size from largest...

I think I found the problem -- your file probably uses CR+LF as line separator.

Try this:

tr -d '\15' <filename | awk '$2 == $4'

To find the OS, run uname -a on your putty terminal..


awk '{if($2==$4) print}' FS=" " filename

Hmm, works here. What OS are you using?

Does

awk '$2 == $4 { print; }' filename

work? If you have nawk or gawk, try this.

awk ' $2==$4 ' filename


It should provide what you require. if the fields are seperated by tab you must use


awk '$2==$4' FS=\t filename


-Raja

/* Includes */
#include <unistd.h> /* Symbolic Constants */
#include <sys/types.h> /* Primitive System Data Types */
#include <errno.h> /* Errors */
#include <stdio.h> /*...

Try...awk '$2==$4' file

Hi,
Which is your OS ? That script did work for me on Linux


>>egrep -Hon "[0-9][0-9][0-9][0-9]" *
id-1:4:2345
id-2:3:3467
id-2:5:7856
id-2:7:8923
log:1:2010
log:2:1982
log:2:2005...

try this if it helps you..It prints all 4 digit numbers if irrespective its id or not...


egrep -Hon "[0-9][0-9][0-9][0-9]" /home/user



This works on linux...if your OS is missing some of...

Hi
Please post a sample input and output file which will make us understand better.

Guru.

w -uh | grep -om 3 '^\S*'

Take me right, please. Learning UNIX today is well beyond UNIX itself. When I started some 20+ years ago, knowing UNIX was sufficient, today it is not. Today, to have real chance of employment in...

couple of ways:


# echo "/home/user/backup/scripts/SDW/sql/backup.sql" | sed 's/.*\/\([^\/\.]*\)\..*/\1/'
backup

or

# echo "/home/user/backup/scripts/SDW/sql/backup.sql" |nawk -F"[/.]"...

You've hit the nail straight on -- a simple script would be perfect. Not only does it allow you the freedom to run one command to accomplish several tasks, its easy to repeat the process if that is...

Output to a temporary file, and then move it over top of the original file. The trick is to not overlay the original file if the command fails.


#!/usr/bin/env ksh

# straight forward:
if...

sed -r 's/\([0-9]+\)//;s/[0-9][0-9]*-[0-9][0-9]*//' file

grep -n '[0-9"]$' test

Your script is


#!/bin/bash
if [ $# -ne 2 ]; then
echo "Usage: $0 Animal Description"
exit
fi

filename=~/.animals
is_in_file=`grep "$1" $filename`
if [ -n "$is_in_file" ]; then ...

That's to say, something like:


#!/bin/bash
if [ $# -ne 2 ]; then
echo "Usage: $0 Animal Description"
exit
fi

filename=~/.animals
is_in_file=`grep "$1" $filename`
if [ -n...