Hi there. I came to the forum after trying to solve my problem searching the web to no avail. This is the issue: I downloaded the source for a program called gnuplot (which is a command line program.) I managed to compile with some errors and was able to run the help command of the program but other than that the program was not really working. I discovered too late that the program is available for Fedora which is my current distribution. After issuing a make uninstall inside the source code folder, the program does not run at all. On the other hand When I install from the Fedora repositories, I get a success message "Installed: gnuplot-5... Complete!" But when I try to run the program I get "bash: /usr/local/bin/gnuplot: No such a file or directory. I have issued so many commands I am afraid I created a big mess!

Your help will be much appreciated!

When you downloaded the source and built it, it was installed under /usr/local/ which is reserved for your local builds. When you downloaded the Fedora version, it installed the program under /usr, most likely /usr/bin/gnuplot, which is where the official system components are placed. You can go ahead and mess up /usr/local all you want. Have fun experimenting.

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Welcome to LQ, noriegafam

On my CentOS server, gnuplot was installed to /bin/gnuplot, and is linked from /usr/local/bin/gnuplot

What does return?
That's the quick way to find out where it was installed, as long as the location is in your PATH.

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Thank you guys. Smallpond was right on the money. I now can see the help options from gnuplot. I've been using Linux for a decade and an half and still feel like a newbie.
Now I just have to figure out how use the little program. :-)