What is something *new* you have learned about Linux within the past 7 days?
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I dont know if this the right place to do a complaint about the new Gimp in 20.04.But it was fine in 18.04,but a lot off things i could do in 18.04 are changed and i cant see how i can change my way of use to the 20.04 Gimp.
PSA: I'm embarrassed to bring it up, because it's a lesson I've learned the hard way too many times: backup your init before you modify.
I do that with all system config files. The first time I modify one, I make a copy with a .orig suffix. That serves two useful purposes: I can always do a complete reset if I need to, and I can see at a glance which files have been modified by hand.
Ha! There, now that I have your attention I will share what I learned about Linux this week. I am sorry to say that I was using Windows as it was the only thing ready to go at my buddy's man cave, and it SUCKED!!! I spent more time waiting for the wheel to stop spinning, closing stupid advertisements from the bloatware, and fighting with an absolute POS that I said "BLEEP This!" I need my Linux live USB3 flash drive. I went to the car, grabbed the O'Fathful Linux Mint ran back in and it loaded into what little RAM this laptop had and I was off and running.
I learned that Linux is smart enough to stick with the "K.I.S.S" development mindset so that there is some version that will work on "it" , whatever "it" may be.
I'm new, but I'm loving it. There's no turning back now folks!!!
"
Take care everyone, be smart, safe, and simple. (like me) "durf"
Thank you all for making this old bleeper excited to learn again.
~Corey (Psychodrum)Drummer for PSYCHOSIS, NH , MASSACRE RECORDS, Germany. 1995-2000
I just learned that GCC now has support for profile guided optimization (PGO) already available. It was a good idea for me to re-read the GCC Info page from cover to cover, after all. The last time I read the manual in that much detail, it was for version 4.4! I just read the manual for 10.2.0.
After 20 years of using GNU/Linux I recently discovered how to clear my terminal screen by pressing Ctrl+L.
wow! I've been typing clear and hit enter. That's even better.
Here's one that I learned from a book but if I don't use it often it takes me a few tries to get it right.
I like to keep a lot of mount points in /media/ so I can mount thumb drives quickly and easy to navigate to in the terminal.
Ubuntu will have a thumb drive mounted automatically at /home/user/media/7894-5467-4567-HI12 or worse.
So.... sudo mkdir /media/sda{1..8}
will create 8 sda mount points 1 thru 8 just like that in /media. Some systems use /mnt like Arch.
Then I change to sdb, sdc, sdd and sde and I've created 40 mount points in about 1 minute.
Then sudo mount /dev/sdc1 /media/sdc1
and then to unmount a bunch of points at once
sudo umount -a and sudo shutdown now turns the PC off.
I discovered the tac command this week which is reverse cat. I also discovered that grep has -m NUM or --max-count=NUM to stop reading after NUM matching lines.
I needed to scan large Apache log files for the most recent request for a specific page. tac starts at the last line and reads up and pipe to grep with -m1 stops after the 1st match.
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