4Aug/100
Tip of the day: How to remove duplicate entries in a file without sorting
GNU awk is a programming language that is designed for processing text-based data, either in files or data streams, and was created in the 1970s at Bell Labs.
To remove duplicate entries without sorting them, enter:
gawk '!x[$0]++' filename
Print This Post
Subscribe
Calendar
| M | T | W | T | F | S | S |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | |||
| 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| 19 | 20 | 21 | 22 | 23 | 24 | 25 |
| 26 | 27 | 28 | 29 | 30 | 31 | |
Polls
Loading ...Quote of the day
he manner in which Americans "consume" music has a lot to do with leaving it on their coffee tables, or using it as wallpaper for their lifestyles, like the score of a movie --it's consumed that way without any regard for how and why it's made.
- Frank Zappa -
- Frank Zappa -
Recent Posts
- Ubuntu: How to install the Classic Desktop in Ubuntu 11.10 (Oneiric Ocelot)
- FreeBSD: How to set up an UPnP Internet Gateway Device (IGD) with MiniUPnP and FreeBSD 9.0
- Ubuntu: How to build and install Linksys AE1000 Wireless-N linux driver on Ubuntu 11.10
- FreeBSD: How to Install and Configure a PPTP VPN server with mpd5 on FreeBSD 8.2
- UNIX Tips: How to find broken symbolic links
Recent Comments
- on FreeBSD: How To Upgrade FreeBSD 7 to 8 Stable Release
- on FreeBSD: How to Install Adobe Flash in FreeBSD 8
- on How To Reset Keyring Password in Ubuntu
- on Ubuntu: How to build and install Linksys AE1000 Wireless-N linux driver on Ubuntu 11.10
- on FreeBSD: How to set up an UPnP Internet Gateway Device (IGD) with MiniUPnP and FreeBSD 9.0
Blogs
Links
Archives
- March 2012 (1)
- February 2012 (1)
- January 2012 (1)
- December 2011 (1)
- November 2011 (4)
- October 2011 (1)
- September 2011 (1)
- August 2011 (1)
- July 2011 (3)
- June 2011 (1)
- May 2011 (1)
- December 2010 (1)
- November 2010 (1)
- October 2010 (4)
- September 2010 (4)
- August 2010 (5)
- July 2010 (3)
- June 2010 (9)
- May 2010 (13)
- April 2010 (23)
- March 2010 (18)
- February 2010 (6)
Tags
apache
bash
boot
bridge
bsd
centos
debian
fedora
freebsd
google
howto
ifconfig
install
linux
make
monitoring
mount
mysql
mysql-server
network
openbsd
openssh
password recovery
pf
pf.conf
php.ini
php5
ports
rhel
samba
security
server
ssh
sysadmin
tips
tips & tricks
tools
tutorial
tweaking
ubuntu
unix
update
upgrade
virtualization
vulnerabilities