05-21-2008
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
hi, just installed redhat linux 7.3 on my server, and put it in gnome gui. Does anyone know what software i need to run a web server??? and what software i need to set up a proxy to secure it?
also, if these are free to download, can you give me the links. Thanx (2 Replies)
Discussion started by: matt2kjones
2 Replies
2. UNIX for Dummies Questions & Answers
1. is redhat linux 7.3 the latest version ??
2. where can i find FREE documentation regarding it ?? installation , etc...
Thanks (2 Replies)
Discussion started by: BAM
2 Replies
3. UNIX Desktop Questions & Answers
I am wondering if anyone has copies (or can burn me a copy) of RedHat Linux.
I will pay shipping charges...
I don't have a CD burner and i dont want to run it off of my hard drive...
please email me at:
empireinfo623@yahoo.com
or
baldwitm@muc.edu (5 Replies)
Discussion started by: thedude623
5 Replies
4. UNIX for Dummies Questions & Answers
I from russia. install rus Linux RedHat. When i load linux it ask me for user name and pass... and up of ask form label: Welcome to localhost... dont remember... what i want write in it?
(sorry, bad english..:( ).. (1 Reply)
Discussion started by: Sen
1 Replies
5. UNIX for Dummies Questions & Answers
Anyone know how to get FTP up and running on a fresh install of RedHat Linux 9?
Thanx,
Aaron (2 Replies)
Discussion started by: Spetnik
2 Replies
6. Slackware
Hi,
I use linux and it is a great OS, I use Redhat Linux 9 and I was wondering are they going to update 9 or they'll be leaving that to the fedora project?
I would like a stable linux distro.
Thanks
-n (9 Replies)
Discussion started by: Insomniac
9 Replies
7. UNIX for Dummies Questions & Answers
I seen a pool that said Linux was the most popular Unix download. I then seen Redhat Linux is the most popular Linux download. Is there a difference? Is it the better program/s? (6 Replies)
Discussion started by: Mr_Pinky
6 Replies
8. Shell Programming and Scripting
What is the difference between test expr VS .
For example :
if test 5 -eq 6
echo "Wrong"
and
if
echo "Wrong"
bot will give the same output as Wrong.
Now, what is the difference between these two? though they are producing the same result why we need two?
Any answer will be... (2 Replies)
Discussion started by: ashok.g
2 Replies
9. UNIX and Linux Applications
Can anyone help me outwith the post installation script.I'm newbie to scripting!
i need to customize the post installation script using kickstart..here are the requirements to be set
set permissions /etc/crontab =400
/etc/securetty=400
/etc/sysctl.conf=600
and following services to be set OFF... (1 Reply)
Discussion started by: bvkumar
1 Replies
10. Red Hat
what is the difference between Redhat Linux and Redhat Enterprise Linux. whereas Redhat linux have Server installation options too. (2 Replies)
Discussion started by: hananabbas
2 Replies
EXPR(1) General Commands Manual EXPR(1)
NAME
expr - evaluate arguments as an expression
SYNOPSIS
expr arg ...
DESCRIPTION
The arguments are taken as an expression. After evaluation, the result is written on the standard output. Each token of the expression is
a separate argument.
The operators and keywords are listed below. The list is in order of increasing precedence, with equal precedence operators grouped.
expr | expr
yields the first expr if it is neither null nor `0', otherwise yields the second expr.
expr & expr
yields the first expr if neither expr is null or `0', otherwise yields `0'.
expr relop expr
where relop is one of < <= = != >= >, yields `1' if the indicated comparison is true, `0' if false. The comparison is numeric if
both expr are integers, otherwise lexicographic.
expr + expr
expr - expr
addition or subtraction of the arguments.
expr * expr
expr / expr
expr % expr
multiplication, division, or remainder of the arguments.
expr : expr
The matching operator compares the string first argument with the regular expression second argument; regular expression syntax is
the same as that of ed(1). The (...) pattern symbols can be used to select a portion of the first argument. Otherwise, the
matching operator yields the number of characters matched (`0' on failure).
( expr )
parentheses for grouping.
Examples:
To add 1 to the Shell variable a:
a=`expr $a + 1`
To find the filename part (least significant part) of the pathname stored in variable a, which may or may not contain `/':
expr $a : '.*/(.*)' '|' $a
Note the quoted Shell metacharacters.
SEE ALSO
ed(1), sh(1), test(1)
DIAGNOSTICS
Expr returns the following exit codes:
0 if the expression is neither null nor `0',
1 if the expression is null or `0',
2 for invalid expressions.
EXPR(1)