Viewing files with cat, more, less, head, and tail
READ ALL ABOUT IT!
Practical tools such as cat, less, and head are convenient for viewing text.
You don’t always need to launch an editor to view text files at the console. More often than not, a simple viewer is far quicker. But the programs we will be looking at in this month’s issue have a lot more tricks up their sleeves. If you are looking for a fast approach to concatenating multiple files in a single file, cat is the tool you need. This article also looks at tips for the more and less pagers, showing you more convenient approaches to using these tools. And if you are just interested in grabbing the first or last few lines of a file, head and tail are the tools you need. Catwalk
cat lets you output a text file via standard output:
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
US / Canada
UK / Australia
News
-
Old Vulnerabilities Are Kept Alive Through Bad Configuration
HP's annual Cyber Risk report offers a bleak look at the state of IT.
-
Linus Torvalds Announces Linux 4.0
But what do the big numbers really mean?
-
Microsoft Frees CoreCLR
.NET Core execution engine is the basis for cross-platform .NET implementations.
-
New Trojan Attacks Linux Servers
The Xnote trojan hides itself on the target system and will launch a variety of attacks on command.
-
Cisco Releases Annual Security Report
Spammers go low-volume, and 90% of IE browsers are unpatched.
-
Zero Day Exploits Target Flash
Adobe scrambles to release patches for vulnerable Flash Player.
-
Intel Unveils Compute Stick
Four-inch-long computer on a stick lets you boot a full Linux system from any HDMI display device.
-
Obama Proposes Personal Data Notification Law
New statute would require companies to report break-ins to consumers.
-
TGXf Project Warns of File Transfer through Screen Pixels
Weird data transfer technique avoids all standard security measures.
-
Industry Giants Announce a Fix for the Password Mess
FIDO alliance declares the beginning of the end for old-style login authentication.