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 1y ago by Michael‭  ·  edited 12mo 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 9mo ago by Michael‭  ·  edited 9mo 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 1y ago by Michael‭  ·  edited 1y 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 1y ago by Michael‭  ·  edited 1y 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 1y ago by Michael‭  ·  edited 1y 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 1y ago by Michael‭  ·  edited 1y 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 11mo ago by Michael‭  ·  last activity 11mo 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 1y 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 8mo ago by Michael‭

I want to issue a command[1] to open a certain folder in a new tab of the currently running Konsole instance (if any). There's a --new-tab option, but konsole --new-tab opens a new instance, even ...

1 answer  ·  posted 28d ago by Michael‭  ·  last activity 27d ago by Michael‭

It doesn't work unless you open Konsole settings and check the option for "Run all Konsole windows in a single process." From bugs.kde.org: My bad, it happens when you turn off running all konso...

posted 27d 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 11mo ago by Michael‭  ·  edited 11mo ago by Michael‭

Are you familiar with the Bash history shortcuts? The most basic is !! to refer to the last command you entered. This lets you do things like sudo !! to run the last command with privileges. You co...

posted 3mo ago by Michael‭

It's been a while since I did proxy server stuff with Chrome and friends. (I'm mostly a Firefox user.) But when I was into it, I used an extension called SwitchyOmega. That extension itself has app...

posted 24d ago by Michael‭