While not technically a unix question, I was hoping for some help from you all-
I've got an Apache 1.3.x server, and I am using basic auth from the pam_auth module and winbind on the back of that. What I get is a relaly sleek authentication for my Windos domain users, however, as they are wont... (1 Reply)
hello.
can somebody please idiot proff simple guide me how to set up ssh public key authenciation?
i am stuck, i tried long and googled a lot but i cant get it.
thanks in advance. (4 Replies)
Hello,
Using AIX 6.1 boxes.
User user1 connects from box A to box B using ssh.
When password authentication is used everything is fine. When I configure user1 to use public key authentication sftp client works fine(no password asked), but ssh client fails. This is sshd log:
Accepted publickey... (3 Replies)
Hi, I've used the following way to set ssh public key authentication and it is working fine on Solaris 10, RedHat Linux and SuSE Linux servers without any problem. But I got error 'Server refused our key' on Solaris 8 system. Solaris 8 uses SSH2 too. Why? Please help. Thanks.
... (1 Reply)
Hi,
please guide me create a public/private key using ssh-keygen, lets say I have been access to server named pngpcdb1with a userid and password ...!!! and also please explain in detail the concept of these keys and ssh as I was planning to use them in ftp related scripts..! Thanks in... (1 Reply)
Hello all,
I am setting up a cluster of Mac Pro's which need to be able to talk to a master computer, traffic between the nodes and the master needs to take place without a ssh key. I need a script that will create a security key, save it to the default place, enter the password as no password.... (2 Replies)
well, im a total novice of unix commands and shell scripting, i never made anything.
But yesterday in my work i was working with a lot of log files and i was wondering if there is a command for doing something like this:
i have a bunch of files with text like this:
blablabla errorcode1... (11 Replies)
Discussion started by: matius_88
11 Replies
LEARN ABOUT CENTOS
expr
EXPR(1) User Commands EXPR(1)NAME
expr - evaluate expressions
SYNOPSIS
expr EXPRESSION
expr OPTION
DESCRIPTION --help display this help and exit
--version
output version information and exit
Print the value of EXPRESSION to standard output. A blank line below separates increasing precedence groups. EXPRESSION may be:
ARG1 | ARG2
ARG1 if it is neither null nor 0, otherwise ARG2
ARG1 & ARG2
ARG1 if neither argument is null or 0, otherwise 0
ARG1 < ARG2
ARG1 is less than ARG2
ARG1 <= ARG2
ARG1 is less than or equal to ARG2
ARG1 = ARG2
ARG1 is equal to ARG2
ARG1 != ARG2
ARG1 is unequal to ARG2
ARG1 >= ARG2
ARG1 is greater than or equal to ARG2
ARG1 > ARG2
ARG1 is greater than ARG2
ARG1 + ARG2
arithmetic sum of ARG1 and ARG2
ARG1 - ARG2
arithmetic difference of ARG1 and ARG2
ARG1 * ARG2
arithmetic product of ARG1 and ARG2
ARG1 / ARG2
arithmetic quotient of ARG1 divided by ARG2
ARG1 % ARG2
arithmetic remainder of ARG1 divided by ARG2
STRING : REGEXP
anchored pattern match of REGEXP in STRING
match STRING REGEXP
same as STRING : REGEXP
substr STRING POS LENGTH
substring of STRING, POS counted from 1
index STRING CHARS
index in STRING where any CHARS is found, or 0
length STRING
length of STRING
+ TOKEN
interpret TOKEN as a string, even if it is a
keyword like 'match' or an operator like '/'
( EXPRESSION )
value of EXPRESSION
Beware that many operators need to be escaped or quoted for shells. Comparisons are arithmetic if both ARGs are numbers, else lexicograph-
ical. Pattern matches return the string matched between ( and ) or null; if ( and ) are not used, they return the number of characters
matched or 0.
Exit status is 0 if EXPRESSION is neither null nor 0, 1 if EXPRESSION is null or 0, 2 if EXPRESSION is syntactically invalid, and 3 if an
error occurred.
GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report expr translation bugs to <http://translationproject.org/team/>
AUTHOR
Written by Mike Parker, James Youngman, and Paul Eggert.
COPYRIGHT
Copyright (C) 2013 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
The full documentation for expr is maintained as a Texinfo manual. If the info and expr programs are properly installed at your site, the
command
info coreutils 'expr invocation'
should give you access to the complete manual.
GNU coreutils 8.22 June 2014 EXPR(1)