Skip to Content
Using csh & tcsh
book

Using csh & tcsh

by Paul DuBois
July 1995
Beginner to intermediate
244 pages
5h 58m
English
O'Reilly Media, Inc.
Content preview from Using csh & tcsh

Displaying Other Types of Information

Your prompt or window title can be used to display other kinds of information, such as your username. You can also set the text of an xterm window's icon so that useful information is displayed even when the window is iconified. This section discusses some of the possibilities.

Displaying the Username

If you have multiple accounts under different logins, you may find it useful to display the current username in your prompt or window title.

To display your name in the prompt with tcsh, just include %n in your prompt variable setting. The following example produces a prompt of name@host: dir%:

set prompt = "%n@%m:%~% "

To display the name in the prompt with csh, modify your setprompt alias to reference the appropriate environment variable (probably USER or LOGNAME, depending on what kind of system you have; we will use USER here). For example, to display the username and the last component of the directory name, use a definition of setprompt that looks like this:

alias setprompt 'set prompt = "${USER} $cwd:t% "'

To put the username in the window title, modify the settitle alias in your .settitle file. The following definition displays name@host followed by the directory stack:

alias settitle 'echo -n "ESC]2;${USER}@'hostname' 'dirs'CTRL-G"'

In tcsh, the hostname is available in the HOST environment variable. Referencing a variable is more efficient than running hostname, so the alias can be rewritten as follows:

alias settitle 'echo -n "ESC]2;${USER}@${HOST} ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
QuotationMarkI wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
QuotationMarkI’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
QuotationMarkI'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Mark W.
Embedded Software Engineer

You might also like

Linux Shells by Example

Linux Shells by Example

Ellie Quigley

Publisher Resources

ISBN: 9781449377526Errata Page