Sponsored Content
Full Discussion: Mac OS X & Unix.
Special Forums UNIX Desktop Questions & Answers Mac OS X & Unix. Post 20417 by lethe on Thursday 25th of April 2002 11:57:04 PM
Old 04-26-2002
here is a nice way to list all commands available to you.
Code:
% ls `echo $PATH | sed 's/:/ /g'` | more

NB: those are back-quotes enclosing front-quotes. you might be best served by just cutting and pasting this to your terminal.

this will list all commands available to you at your terminal, one screen at a time. this is not really a good way to begin using and understanding UNIX, because there will probably be lots of commands (100?), and you won t learn too much from just seeing them. most of them will have esoteric names that you won t understand. but you asked for it and here it is.

if you see a command that looks interesting, type:
Code:
% man commandname

to learn more

understanding how this command works will go a long way towards teaching you about how to use UNIX. here we have most basic UNIX concepts: piping, shell variables, regexpressions with sed, command substitution and basic file commands like ls, echo, and more.

Last edited by lethe; 04-26-2002 at 01:07 AM..
 

6 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Mac OS X & Web Dev

Could someone recommend a good book? Regarding Unix and Mac os X? I know the OS is new, but Unix ain't. I would like to know more about setting up the webserver on my machine. All the HTML works fine, it's just when i try to execute a cgi, php or a pl script.. :( I have tried and tried to... (2 Replies)
Discussion started by: Chojin
2 Replies

2. UNIX Desktop Questions & Answers

what is the difference between Unix & linux, what are the advantages & disadvantages

ehe may i know what are the difference between Unix & Linux, and what are the advantages of having Unix as well as disadvantages of having Unix or if u dun mind i am dumb do pls tell me what are the advantages as well as the disadvantages of having linux as well. thanks (1 Reply)
Discussion started by: cybertechmkteo
1 Replies

3. OS X (Apple)

MAC OS X : Q & A :

:confused: = :mad: = :eek: = We have the answear ;) (1 Reply)
Discussion started by: i[c]e
1 Replies

4. OS X (Apple)

Mac OS X & UNIX

I just joined the Forum a few days ago! :) I have a mac book and decided to look under the hood. Low and behold, UNIX! To be honest, I know nothing about unix, but I want to learn. I have no real goals as of yet, other than to learn what I can. I do own a few domains hosted by a good company. ... (4 Replies)
Discussion started by: fellojello
4 Replies

5. Shell Programming and Scripting

How to write If statement using && and operator in Unix

Hi What is the syntax for if statement using && and || operator? if && ] || here its giving me an error to this if statement any suggestion?? (2 Replies)
Discussion started by: Avi
2 Replies

6. UNIX for Dummies Questions & Answers

[solved] Where & what bash env file, Mac OS?

Hi! I wanted to simplify my bash prompt, so I edited my etc/bashrc file. I thought this was the file that would override any other env files. When I opened it, I saw that the way it was setup was not what my prompt looked like, although I forget exactly what was there. But i edited it the way I... (1 Reply)
Discussion started by: sudon't
1 Replies
LEARN(1)						      General Commands Manual							  LEARN(1)

NAME
learn - computer aided instruction about UNIX SYNOPSIS
learn [ -directory ] [ subject [ lesson ] ] DESCRIPTION
Learn gives Computer Aided Instruction courses and practice in the use of UNIX, the C Shell, and the Berkeley text editors. To get started simply type learn. If you had used learn before and left your last session without completing a subject, the program will use information in $HOME/.learnrc to start you up in the same place you left off. Your first time through, learn will ask questions to find out what you want to do. Some questions may be bypassed by naming a subject, and more yet by naming a lesson. You may enter the lesson as a number that learn gave you in a previous session. If you do not know the lesson number, you may enter the lesson as a word, and learn will look for the first lesson containing it. If the lesson is `-', learn prompts for each lesson; this is useful for debugging. The subject's presently handled are files editor vi morefiles macros eqn C There are a few special commands. The command `bye' terminates a learn session and `where' tells you of your progress, with `where m' telling you more. The command `again' re-displays the text of the lesson and `again lesson' lets you review lesson. There is no way for learn to tell you the answers it expects in English, however, the command `hint' prints the last part of the lesson script used to evaluate a response, while `hint m' prints the whole lesson script. This is useful for debugging lessons and might possibly give you an idea about what it expects. The -directory option allows one to exercise a script in a nonstandard place. FILES
/usr/share/learn subtree for all dependent directories and files /usr/tmp/pl* playpen directories $HOME/.learnrc startup information SEE ALSO
csh(1), ex(1) B. W. Kernighan and M. E. Lesk, LEARN - Computer-Aided Instruction on UNIX BUGS
The main strength of learn, that it asks the student to use the real UNIX, also makes possible baffling mistakes. It is helpful, espe- cially for nonprogrammers, to have a UNIX initiate near at hand during the first sessions. Occasionally lessons are incorrect, sometimes because the local version of a command operates in a non-standard way. Occasionally a lesson script does not recognize all the different correct responses, in which case the `hint' command may be useful. Such lessons may be skipped with the `skip' command, but it takes some sophistication to recognize the situation. To find a lesson given as a word, learn does a simple fgrep(1) through the lessons. It is unclear whether this sort of subject indexing is better than none. Spawning a new shell is required for each of many user and internal functions. The `vi' lessons are provided separately from the others. To use them see your system administrator. 7th Edition October 22, 1996 LEARN(1)
All times are GMT -4. The time now is 03:52 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy