specifying a system-wide path variable

How to specify a system-wide path variable, used by including fcron,background-processes and sourced rc scripts and all different shells.
 
Other than setting the PATH yourself in scripts or when executing programs, there may not be an easy way to do what you want. From my /etc/login.conf:
Code:
# This PATH may be clobbered by individual applications.  Notably, by default,
# rc(8), service(8), and cron(8) will all override it with a default PATH that
# may not include /usr/local/sbin and /usr/local/bin when starting services or
# jobs.
daemon:\
    :path=/sbin /bin /usr/sbin /usr/bin /usr/local/sbin /usr/local/bin:\
    :mail@:\
    :memorylocked=256M:\
    :tc=default:
And service(8) states:
Code:
ENVIRONMENT
     When used to run rc.d scripts the service command sets HOME to / and PATH
     to /sbin:/bin:/usr/sbin:/usr/bin which is how they are set in /etc/rc at
     boot time.
What problem are you facing? Maybe there's an alternative solution.
 
My current workaround is specifying a full path for every command.
Another workaround would be settting the path variable for every script.
 
It is imprudent to rely on anything in the environment being "right", and has ever been thus.

All scripts should set (and export) their PATH explicitly.
also binaries that escalate privileges
there were several exploits that were using changed PATH with setuid binaries that executed another binary
 
Linux/Unix Most of the shells supports export keyword for making environment variables
There is the usage:
export EXAMPLE_PATH="/home/username/Desktop"
 
I don't think that's true though. NT4 was POSIX compliant (certified even) but it didn't have a POSIX shell.
Did a quick research on this: You're right, just because "POSIX compliant" lacks some precision. NT4 was POSIX.1 compliant, in a nutshell covering kernel and library APIs. It wasn't POSIX.2 compliant, which covers shell and utilities (like ls).
Fun fact: the PowerShell (which is far from a POSIX shell) understands ls, hehe…
Yeah, sorry, taking this a bit off topic ;)
Hm, indeed. But interesting ;)
 
The env utility runs other utilities after modifying the environment as specified on the command line. Each name=value option specifies the setting of the environment variable, name, with the value value. All of these environment variables are set before running the utility.

Change PATH environment variable
In csh, if you want to change $PATH environment variable, you should modify .cshrc file:

root@ns3:~ # env

Setup Path Environment Variable Freebsd For Composer Java and Go

On FreeBSD, the JAVA_HOME and PATH environment variables need to be set to use tools such as javac, java, Tomcat, Solr and others. If you use Java17 or another version, by default, FreeBSD saves the installation process files in /usr/local/openjdk17. The JAVA_HOME environment variable points to the JDK installation directory. To use Java Paths correctly, open the csh.cshrc file, and type the following path script.


root@ns3:~ # ee /etc/csh.cshrc
setenv JAVA_VERSION "17.0+"
setenv ES_JAVA_HOME /usr/local/openjdk17

root@ns3:~ # ee .cshrc
set path = ($ES_JAVA_HOME/bin /sbin /bin /usr/sbin /usr/bin /usr/local/sbin /usr/local/bin $HOME/bin)
 
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