Sponsored Content
Full Discussion: Environment variables
Top Forums Shell Programming and Scripting Environment variables Post 302631807 by zedex on Saturday 28th of April 2012 02:57:50 AM
Old 04-28-2012
Quote:
Originally Posted by rwa25
And to zedex, what you cat "changeDir.sh" where does that file get stored? is it in the current directory or into memory? I don't want to litter .sh files everywhere Smilie
Thats just an example, before loading you would set PATH variable or use function with complete path/to/scrtipt so that you dont have to set PATH
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

what is the use of Environment variables

what is the actual use of environment variables. I know only PS1, LOGNAME, PS2 variables what are the other variables & what is there use (2 Replies)
Discussion started by: indianguru
2 Replies

2. Programming

environment variables

Hi! How-to get the environment variables in GNU. getenv() only fetches the ones that you can find under export (not the ones under declare)... best regars .David (2 Replies)
Discussion started by: Esaia
2 Replies

3. UNIX for Dummies Questions & Answers

environment variables

Hi Folks, Is it possible somehow to unset all the environment variables which have been defined before in UNIX (Solaris). Thanks, Slava (3 Replies)
Discussion started by: spavlov
3 Replies

4. UNIX for Dummies Questions & Answers

help..Environment variables...

hi, 1). i would like to know what is meant by environment variables? 2). is the number of envi variables is a constant number for unix systems? 3). how to see the list of envi variables (and the values of the envi variables)in a single command? 4). if this questions were already asked... (3 Replies)
Discussion started by: sekar sundaram
3 Replies

5. Programming

environment variables

hi, I want to create a new EV(Environment Variable) through a c program and I done this thing through setenv() method. But the newly created EV is not permanent, i.e. when I exit from the program the EV also no longer lives. But I want to make it a permanent EV for the current user. Actually I... (6 Replies)
Discussion started by: sumsin
6 Replies

6. Shell Programming and Scripting

environment variables

Hi, If i have a variable set and exported in my pofile file will that variable be available in all shell scripts created. Thanks, Radhika. (3 Replies)
Discussion started by: radhika03
3 Replies

7. UNIX for Dummies Questions & Answers

Environment variables

why are all environment variables represented in a fixed format regardless of the shell you use? like $HOME $PATH etc (6 Replies)
Discussion started by: sravani
6 Replies

8. HP-UX

Environment Variables

Hi Experts, Need your help in understanding the commands to setup the environment variables in hp-ux. Beleive need to use either set,setenv or export. I am confused between above three options, when to use which option? On command line, I have tried both set and setenv but couldn't... (1 Reply)
Discussion started by: sai_2507
1 Replies

9. Homework & Coursework Questions

Environment Variables

1. The problem statement: What is the mesg value set for your environment? If it is on, how would you turn off your current session? How would you set it permanently? 3. The attempts at a solution : Read Unix The textbook. 3rd chapter has many things like environment variables and... (5 Replies)
Discussion started by: mahinkhan22
5 Replies

10. HP-UX

Environment Variables

Hi All, I need to understand following three environment variables and their usages in HP Unix. _M_ARENA_OPTS _M_CACHE_OPTS PTHREAD_SCOPE_SYSTEM How does these environment variables influence multi threaded applciation and how do we decide the value of these variables? Is there... (0 Replies)
Discussion started by: angshuman
0 Replies
PCP.CONF(5)							File Formats Manual						       PCP.CONF(5)

NAME
pcp.conf - the Performance Co-Pilot configuration and environment file SYNOPSIS
/etc/pcp.conf DESCRIPTION
When using Performance Co-Pilot (PCP) tools and utilities and when calling PCP library functions, a standard set of environment variables are defined in /etc/pcp.conf. These variables are generally used to specify the location of various PCP pieces in the file system and may be loaded into shell scripts by sourcing the /etc/pcp.env(5) shell script and queried by C/C++ programs using the pmGetConfig(3) library function. If a variable is already defined in the environment, the values in pcp.conf do not override those values, i.e. the values in pcp.conf serve as installation defaults only. Both the pcp.env and pcp.conf files are expected to be found in /etc by default. If required, the pcp.conf file may be relocated and PCP_CONF set in the environment to specify the full path to the new location. The pcp.env file can not be relocated (this is the only hard coded path required by PCP). The syntax rules for pcp.conf are as follows : 1. the general syntax is PCP_VARIABLE_NAME=variable value to end of line 2. lines that begin with # and all blank lines are ignored. 3. all variables must be prefixed with PCP_. This is a security issue - variables that do not have this prefix will be silently ignored. 4. there should be no space between the variable name and the literal = and no space between the = and the variable value (unless the value actually starts with a space). This is required because the pcp.conf file may be sourced directly by Makefiles as well as inter- preted by the pcp.env script and the pmGetConfig function. 5. variable values may contain spaces and should not be quoted. The pcp.env script automatically quotes all variable values from the character immediately following the = through to the end of the line. For further details and an explanation of the use of each variable, see the comments in the /etc/pcp.conf file itself. ENVIRONMENT
The PCP_CONF environment variable specifies an alternative path to the pcp.conf file. SEE ALSO
PCPIntro(1), PCPIntro(3), PMAPI(3), pmGetConfig(3) and pcp.env(5). Performance Co-Pilot PCP PCP.CONF(5)
All times are GMT -4. The time now is 02:21 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy