02-09-2009
It varies on what shell you are using. I always use bash and that feature is on by default.
9 More Discussions You Might Find Interesting
1. News, Links, Events and Announcements
Link describe the Step by step formation of Unix
http://perso.wanadoo.fr/levenez/unix/
Also:
- History
- Author of First Unix C Language
- Unix Family research Tree
- BSD and Sun History chart
- Technical Comparison between Unix Diffrences (4 Replies)
Discussion started by: killerserv
4 Replies
2. UNIX for Dummies Questions & Answers
Hi. I am new here, and this is my first post at the UNIX.com forums. I have read the book Fire in the Valley: The Making of the Personal Computer, and I noticed that neither UNIX nor Linux was mentioned once in the book. Why is this? What was UNIX's place in the early days of personal computers?
... (6 Replies)
Discussion started by: elendil
6 Replies
3. News, Links, Events and Announcements
Note the new feature on UNIX.COM, many thread at the bottom of the page have a new feature:
Similiar Threads
Here is an example on one of Perderabo's posts:
https://www.unix.com/showthread.php?t=16337
Kudos to the vB folks for this built-in feature!!
Neo (0 Replies)
Discussion started by: Neo
0 Replies
4. UNIX for Dummies Questions & Answers
I tried looking for the answer online and came up with only a few semi-answers as to why file and directory names are case sensitive in Unix. Right off the bat, I'll say this doesn't bother me. But I run into tons of Windows and OpenVMS admins in my day job who go batty when they have to deal... (3 Replies)
Discussion started by: deckard
3 Replies
5. Shell Programming and Scripting
I'm trying to write a history feature to a very simple UNIX shell that will list the last 10 commands used when control-c is pressed. A user can then run a previous command by typing r x, where x is the first letter of the command. I'm having quite a bit of trouble figuring out what I need to do, I... (2 Replies)
Discussion started by: -=Cn=-
2 Replies
6. Solaris
is there any way to determine the last command entered on a unix machine???
Thanx (3 Replies)
Discussion started by: mm00123
3 Replies
7. UNIX and Linux Applications
Hi everybody Im Megadrink!!!
This is my first thred.
Ive recently been introduced to Unix and i was interested in Unix's History. Can anyone give me a breif History On Unix. Just when it was invented/released. Maybe someother cool things about it.
Thx for the information in advance!! :D (2 Replies)
Discussion started by: Megadrink
2 Replies
8. Shell Programming and Scripting
commands to view the history file in unix.
I am not sure whether it is bash_history.sh (1 Reply)
Discussion started by: ramkumar15
1 Replies
9. What is on Your Mind?
I am pleased to announce this new video in 1080 HD for UNIX lovers honoring thirty years of UNIX history spanning from 1969 to 1999 presented in 150 seconds (two and a half minutes) in 1080 HD, celebrating the 50th anniversary of UNIX.
The Great History of UNIX (1969-1999) | 30 Years of UNIX... (8 Replies)
Discussion started by: Neo
8 Replies
LEARN ABOUT POSIX
libbash
LIBBASH(7) libbash Manual LIBBASH(7)
NAME
libbash -- A bash shared libraries package.
DESCRIPTION
libbash is a package that enables bash dynamic-like shared libraries. Actually its a tool for managing bash scripts whose functions you may
want to load and use in scripts of your own.
It contains a 'dynamic loader' for the shared libraries ( ldbash(1)), a configuration tool (ldbashconfig(8)), and some libraries.
Using ldbash(1) you are able to load loadable bash libraries, such as getopts(1) and hashstash(1). A bash shared library that can be loaded
using
ldbash(1) must answer 4 requirments:
1. It must be installed in $LIBBASH_PREFIX/lib/bash (default is /usr/lib/bash).
2. It must contain a line that begins with '#EXPORT='. That line will contain (after the '=') a list of functions that the library
exports. I.e. all the function that will be usable after loading that library will be listed in that line.
3. It must contain a line that begins with '#REQUIRE='. That line will contain (after the '=') a list of bash libraries that are
required for our library. I.e. every bash library that is in use in our bash library must be listed there.
4. The library must be listed (For more information, see ldbashconfig(8)).
Basic guidelines for writing library of your own:
1. Be aware, that your library will be actually sourced. So, basically, it should contain (i.e define) only functions.
2. Try to declare all variables intended for internal use as local.
3. Global variables and functions that are intended for internal use (i.e are not defined in '#EXPORT=') should begin with:
__<library_name>_
For example, internal function myfoosort of hashstash library should be named as
__hashstash_myfoosort
This helps to avoid conflicts in global name space when using libraries that come from different vendors.
4. See html manual for full version of this guide.
AUTHORS
Hai Zaar <haizaar@haizaar.com>
Gil Ran <ril@ran4.net>
SEE ALSO
ldbash(1), ldbashconfig(8), getopts(1), hashstash(1) colors(1) messages(1) urlcoding(1) locks(1)
Linux Epoch Linux