Michael‭

I think the typical way to do this uses wc ("word count") with the -l ("lines") option. $ wc -l /path/to/file 47 /path/to/file $ wc -l </path/to/file 47 $ cat /path/to/file | wc -l ...

posted 9mo ago by Michael‭  ·  edited 7mo ago by Michael‭

Richard Stallman wants you to use GNU/Linux to refer to the combination of OS and kernel that people typically call Linux. I am not a Stallman partisan one way or the other, but I think noting his ...

posted 5mo ago by Michael‭  ·  edited 5mo ago by Michael‭

There are probably myriad services for echoing your IP back over HTTP. Here are a couple: curl https://api.ipify.org curl https://ip.me curl https://icanhazip.com

posted 11mo ago by Michael‭  ·  edited 9mo ago by Michael‭

If you just want the minimal set of top-level packages to install on your new system, brew leaves is less verbose than CodeFarmer's brew deps --installed. You get a nice concise list of the packag...

posted 11mo ago by Michael‭  ·  edited 11mo ago by Michael‭

Over some period of time, I have used a couple tools for local TLS scans and diagnostics. One of them may include pointers for whatever situation you have. Tool Description From Current? ...

posted 9mo ago by Michael‭  ·  edited 9mo ago by Michael‭

Wayland, ideally If you are on Wayland, the blessed way is to use the configuration for your desktop environment (DE) to map mouse keys and other input devices, except for a couple well-known opti...

posted 8mo ago by Michael‭  ·  edited 8mo ago by Michael‭

Can I restrict myself from certain actions when I SSH in from outside a certain IP range? For instance no sudo? Maybe with ~/.ssh/authorized_keys having a from="!1.2.3.4/26" option with some kind ...

1 answer  ·  posted 7mo ago by Michael‭  ·  last activity 7mo ago by Michael‭

Grove's answer is likewise good, but OpenSSH introduced ProxyJump (-J) in 2016 with v7.3, making it even easier to chain SSH hosts together: ssh -J user@interstitial.example me@destination.example...

posted 1y ago by Michael‭  ·  edited 9mo ago by Michael‭

Make a lock file or env variable and alias the CLI command to test for the lock before it starts the real command.

posted 4mo ago by Michael‭

authorized_keys You can make restrictions, but it's clunky and not well-standardized. A command stanza on an authorized key works like the ForceCommand on SSHD Config. It runs the one specified co...

posted 7mo ago by Michael‭  ·  edited 7mo ago by Michael‭