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The time now is Fri 22 Nov 2019, 20:26 All times are UTC - 4 |
 Forum index » House Training » Beginners Help ( Start Here) |
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How to set PATH variable so that it persists across boots?
Moderators: Flash, Ian, JohnMurga |
 
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rsfairman
Joined: 11 Jan 2017 Posts: 8 |
So, how is this done? I would like PATH to start with '.' (the current directory) so that executables or scripts that I create can be launched more easily from the command-line. I'm aware of the risks of doing this, but it's easier for me. I am running tahrpup 6.0.5 on an old Dell laptop (Latitude D520), and it's a fresh "full" install on the hard drive. I tried adding PATH=.:$PATH in several places. The most natural seems to be /root/.profile, but it doesn't work. I also tried /etc/profile, but that won't do it either. I also tried it with and without an 'export'. It does change PATH if I type 'source .profile', but I would rather it happen automatically when I reboot. Thanks, Randall |
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musher0
Joined: 04 Jan 2009 Posts: 14484 Location: Gatineau (Qc), Canada |
Hello, rsfairman. I see that this is your first post on this forum, so... "Welcome aboard!" 
I hope that Puppy Linux will suit your needs and that your Puppy experience will be enjoyable! About your question: It is generally not a good idea to include . (current directory) in your path, because 1) the executables present in the current directory may override the system-defined executables, and; 2) it exposes your system needlessly to possible outside intervention. Please see: http://unix.stackexchange.com/questions/65700/is-it-safe-to-add-to-my-path-how-come about this. That said, if you still wish to include it, it is recommended to place this directory at the end of your current path, like so:
you a few headaches in case the local executable would conflict with a system executable. To make this change permanent in your Puppy, may I suggest that you do the following: -- open a terminal -- issue command
If you do not already have a < profile.local > file in /etc, it will be created. If you do, the < export > line above will simply be added at the end of it. We put this change in the user's local profile because we try to avoid messing up anything in the main system profile. In Puppy, the main system profile calls the user's (i.e. local) profile anyway when it has finished its job, so there's no difference in performance. Also, in Puppy, we have the already existing solution of putting one's personal executables in /root/my-applications/bin and the corresponding needed libraries (when applicable) in /root/my-applications/lib. Those two directories are already in Puppy's default system path (on lines 2 and 3 of the /etc/profile file). Finally, as you may already know, in Linux generally, we have the ready- made solution of calling an executable located in the directory where we are presently from a terminal by typing
Any feedback welcome. IHTH (I Hope This Helps). _________________ musher0 ~~~~~~~~~~ Je suis né pour aimer et non pas pour haïr. (Sophocle) / I was born to love and not to hate. (Sophocles) |
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MochiMoppel
 Joined: 26 Jan 2011 Posts: 1925 Location: Japan |
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rsfairman
Joined: 11 Jan 2017 Posts: 8 |
Thank you both for the very complete answers. Mochi, you are right, that editing /etc/profile does work. After trying too many things I got mixed up. Although adding to /etc/profile.local does work, I was hoping to avoid messing with things in /etc. As musher0 says, it's good to avoid "messing up anything in the main system profile." An extension of that sentiment is the desire not to go into /etc at all if you can avoid it. That's why it seems better to put anything specific to my install in /root or some other space segregated from the standard installation. Then again, it works, so no complaints! Thanks, Randall |
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How to set PATH variable so that it persists across boots?
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