Shell parameter substitution; return everything in the string $m - after the first = character
This does the opposite - everything before the = character.
#!/bin/sh
$ORACLE_HOME/bin/sqlplus -S $orauserid/$orapasswd@$oradb << _TMP
alter session set nls_date_format = 'YYYYMMDD HH24:MI';
set linesize 100
set pagesize 400
ok the above is part of a script..i just wanna know what does sqlplus -S means?? as in why we need to insert the -S behind? (2 Replies)
Masters,
I am trying to learn the serial mouse driver for linux kernel. On the kernel source tree I find out these macros and I am unable to find out the meaning of these macros. Please anyone help me to understand these.
These macros are defined in linux/serio.h... (2 Replies)
Hi ,
Can anyone please let me know whta the follwoing piece of code for
ScriptName=${0##*/}
if pgrep -f "$ScriptName" | grep -v "^$$\$" ; then
echo `date`": Sctipt $ScritName is already runnig"
exit
fi
Thnx a lot in advance
Please use code tags when posting data and code... (8 Replies)
Please let me know the meaning for the below statements in shell scripting.
1) exit -99
--------------------------------
2) set prgdir = `pwd`
set runFlag = runFlag:FALSE
-------------------------------------
3) if (-f $prgdir/maillst.eml) then
set distEmail = `cat $prgdir/maillst.eml`... (1 Reply)
Hello everyone,
I'm looking for the meaning of this expression, as I don't understand it quite clearly : $1^
What do you think it could be?
I thought either:
- match lines starting with argument 1 but it should be ^$1
- turn line around : word becomes drow
Thanks in advance for your... (4 Replies)
Discussion started by: bibelo
4 Replies
LEARN ABOUT LINUX
pam_issue
PAM_ISSUE(8) Linux-PAM Manual PAM_ISSUE(8)NAME
pam_issue - PAM module to add issue file to user prompt
SYNOPSIS
pam_issue.so [noesc] [issue=issue-file-name]
DESCRIPTION
pam_issue is a PAM module to prepend an issue file to the username prompt. It also by default parses escape codes in the issue file similar
to some common getty's (using x format).
Recognized escapes:
d
current day
l
name of this tty
m
machine architecture (uname -m)
machine's network node hostname (uname -n)
o
domain name of this system
release number of operating system (uname -r)
current time
s
operating system name (uname -s)
u
number of users currently logged in
U
same as u except it is suffixed with "user" or "users" (eg. "1 user" or "10 users")
v
operating system version and build date (uname -v)
OPTIONS
noesc
Turns off escape code parsing.
issue=issue-file-name
The file to output if not using the default.
MODULE TYPES PROVIDED
Only the auth module type is provided.
RETURN VALUES
PAM_BUF_ERR
Memory buffer error.
PAM_IGNORE
The prompt was already changed.
PAM_SERVICE_ERR
A service module error occurred.
PAM_SUCCESS
The new prompt was set successfully.
EXAMPLES
Add the following line to /etc/pam.d/login to set the user specific issue at login:
auth optional pam_issue.so issue=/etc/issue
SEE ALSO pam.conf(5), pam.d(5), pam(7)AUTHOR
pam_issue was written by Ben Collins <bcollins@debian.org>.
Linux-PAM Manual 06/04/2011 PAM_ISSUE(8)