03-20-2006
Quote:
Your program can only set the environment for itself and any children it would fork.
And those env variables that are not part of the profile should be exported for the child to make use of it.
Quote:
It can however not set the environment of its own parent.
I believe the hierarchy doesnt goes from child to parent, and only from parent to child.
Quote:
Since you mentioned the getenv() and setenv() syscalls I assume you are referring to some C code.
Yes, I had specified them to make use in 'C' code only.
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi,
How does the PATH and MANPATH environment variable get set?
I want to add "/opt/SUNWspro/bin" to the search path for all the users. Where can I access this variable.
I know in my home directory, depend on which shell I use, there are files such as .profile and .cshrc which I can edit to... (3 Replies)
Discussion started by: vtran4270
3 Replies
2. UNIX for Advanced & Expert Users
Installed a program, need to set the system up so that when the executable is entered, it finds the path to the executable. In Windows, set under system properties, advanced, environmental variables. How do I do this with Unix? Specifically using Solaris 9. I have tried:
env... (3 Replies)
Discussion started by: kohoutek
3 Replies
3. Shell Programming and Scripting
hi all
i have joined new to the group.
i have set an variable in my bashrc file.
.bashrc
PROGHOME=/home/braf/braf/prog
export PROGHOME
but while using it in my shell script its path is not taken and i had to explicitly give the export command to set the path.
in my script... (8 Replies)
Discussion started by: krithika
8 Replies
4. Linux
Hi,
I am quite new to Linux. And I have doubt how to set new environment variable with value to a C executable.
Let say I have a environment variable $Hack ;
I would like to load a value for this variable; so that when the C executable is executed, the $Hack would set the variable value.
... (4 Replies)
Discussion started by: ahjiefreak
4 Replies
5. Solaris
I am working with solaris 9 sunBlade150 Box.
I Installed a program, need to set the environment variable so that when the executable is entered,it finds the path to the executable.
The documentation for the software says: Set the appropriate environment variable:
Connect to server failed;... (8 Replies)
Discussion started by: smartgupta
8 Replies
6. Shell Programming and Scripting
Do not know how to do this, any help would be appreciated:
I have a file that comes in called xxxx.txt. I have a script that does some messing around with the file.
The file needs to go out as PAB108XXXX.csv
The four x's above will be a number that changes everytime the script is ran e.g.... (1 Reply)
Discussion started by: Pablo_beezo
1 Replies
7. UNIX for Dummies Questions & Answers
hi,
i am new to perl:
os : Linux
i wrote simple perl script to select from table i am getting this error and how to set ORACLE_HOME environment variable :
script:
#!usr/bin/perl
use DBI;
use Mail::Sendmail;
#use Date::Calc;
use MIME::QuotedPrint;
use HTML::Entities;
use POSIX... (2 Replies)
Discussion started by: prakash.gr
2 Replies
8. Shell Programming and Scripting
Hi,
i have the following env variable. currently i am exporting variable in the same script file. but i need this is in a text file and the scripts need to export this variable from the text file.
can you please suggest me. is it possible.
export... (6 Replies)
Discussion started by: rsivasan
6 Replies
9. Shell Programming and Scripting
Hi,
I have two scripts that use the same variable. Say suppose I export that variable in script 1 and try to use it in script 2 where I have declared it locally, what will be the effective value of the variable? Will it take the exported value or the locally declared?
example:
Script1... (4 Replies)
Discussion started by: PraveenSikamani
4 Replies
10. Solaris
Hi all,
In Solaris 10, is there a way to search for the sessions that have a certain environment variable set? (8 Replies)
Discussion started by: ejianu
8 Replies
CHAGE(1) User Commands CHAGE(1)
NAME
chage - change user password expiry information
SYNOPSIS
chage [options] [LOGIN]
DESCRIPTION
The chage command changes the number of days between password changes and the date of the last password change. This information is used by
the system to determine when a user must change his/her password.
OPTIONS
The options which apply to the chage command are:
-d, --lastday LAST_DAY
Set the number of days since January 1st, 1970 when the password was last changed. The date may also be expressed in the format
YYYY-MM-DD (or the format more commonly used in your area).
-E, --expiredate EXPIRE_DATE
Set the date or number of days since January 1, 1970 on which the user's account will no longer be accessible. The date may also be
expressed in the format YYYY-MM-DD (or the format more commonly used in your area). A user whose account is locked must contact the
system administrator before being able to use the system again.
Passing the number -1 as the EXPIRE_DATE will remove an account expiration date.
-h, --help
Display help message and exit.
-I, --inactive INACTIVE
Set the number of days of inactivity after a password has expired before the account is locked. The INACTIVE option is the number of
days of inactivity. A user whose account is locked must contact the system administrator before being able to use the system again.
Passing the number -1 as the INACTIVE will remove an account's inactivity.
-l, --list
Show account aging information.
-m, --mindays MIN_DAYS
Set the minimum number of days between password changes to MIN_DAYS. A value of zero for this field indicates that the user may change
his/her password at any time.
-M, --maxdays MAX_DAYS
Set the maximum number of days during which a password is valid. When MAX_DAYS plus LAST_DAY is less than the current day, the user
will be required to change his/her password before being able to use his/her account. This occurrence can be planned for in advance by
use of the -W option, which provides the user with advance warning.
Passing the number -1 as MAX_DAYS will remove checking a password's validity.
-W, --warndays WARN_DAYS
Set the number of days of warning before a password change is required. The WARN_DAYS option is the number of days prior to the
password expiring that a user will be warned his/her password is about to expire.
If none of the options are selected, chage operates in an interactive fashion, prompting the user with the current values for all of the
fields. Enter the new value to change the field, or leave the line blank to use the current value. The current value is displayed between a
pair of [ ] marks.
NOTE
The chage program requires a shadow password file to be available.
The chage command is restricted to the root user, except for the -l option, which may be used by an unprivileged user to determine when
his/her password or account is due to expire.
CONFIGURATION
The following configuration variables in /etc/login.defs change the behavior of this tool:
FILES
/etc/passwd
User account information.
/etc/shadow
Secure user account information.
EXIT VALUES
The chage command exits with the following values:
0
success
1
permission denied
2
invalid command syntax
15
can't find the shadow password file
SEE ALSO
passwd(5), shadow(5).
User Commands 06/24/2011 CHAGE(1)