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1
Chapter 2
Unix Utilities for non-programmers
Graham Glass and King Ables,
UNIX for Programmers and Users
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UNIX
for
Programmers
and
Users
,
Third Edition, Pearson Prentice Hall, 2003.
Original Notes by Raj Sunderraman
Converted to presentation and updated by
Michael Weeks
Getting Started
• Obtain an account -OR- install Linux
• Logging in
– locally: enter username and password
remotel se the
ssh
/
telnet
tilit to sign on to
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–
remotel
y: u
se
the
ssh
/
telnet
u
tilit
y
to
sign
on
to
• Upon logging on you will see a prompt
(usually $ or %) which is displayed by a
special kind of program called a SHELL
program.
• To set your password, use passwd
Shells
• Popular shells:
– Bourne Shell
– Korn Shell
C Shell
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–
C
Shell
– Bash (Bourne Again SHell)
• All have common core functionality; some
differences.
• Each shell has its own programming
language. (Shell programming).
Running Utilities
• To run a utility, simply type the name of the
utility after the prompt.
• Some utilities: date, man, clear, stty,
passwd
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passwd
– Utility: date [yymmddhhmm[.ss]]
– Utility: clear
– Utility: man [-s section] word
– man -k keyword
• To logout, enter CTRL-D (or exit)
Special Characters
• list meta characters with stty -a command
• ^ means control
• ^C means hold down control key (CTRL)
and press the C key
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and
press
the
C
key
Special Characters
• erase: CTRL-H erase character before
cursor
• werase: CTRL-W erase word before cursor
• kill: CTRL-U erase entire line
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• rprnt: CTRL-R reprint line
• To test these:
– type some input like “one two three four” at the
terminal prompt
– move cursor around
– try the above characters
