Posts by 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 ...
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 ...
Does it help you to go to a virtual terminal with Ctrl+Alt+F1 (thru F6)? Then, maybe you can kill the problematic process(es) and go back with Ctrl+Alt+F7 or Alt+F7.
I'm trying to get a hardware driver working. Someone seems to have a kernel module project, but I have to compile it locally and install it. I can install dependencies and make just fine, but inst...
No. There is no known danger. The XZ backdoor was serious and very nearly became a catastrophe, but it was patched before release. A few things happened as a result of the XZ debacle, wherein: ...
I would look into Keyman, especially if you have expansive or niche language needs. It's a FOSS project started in 1993, and supports 2500+ languages on Windows, Mac, Linux, iOS, and Android. Ther...
I use man sh and then /^\s+read to get to the section of the man page that discusses the appropriate builtin. You can get a direct link to the Bash read in Debian's manpage site, which has this to...
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...
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 ...
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 ...
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...
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? ...
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...
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
Homebrew has different commands for brew uninstall {package} to remove the executable(s) versus brew zap {package} which further performs arbitrary extra cleanup steps specified by the formula.[1] ...
One of the applications on my phone has a field to run a CLI command. I'd like to invoke another application with that property, but I don't know where it lives. I don't see likely candidates in m...
Make a lock file or env variable and alias the CLI command to test for the lock before it starts the real command.
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 [email protected] [email protected]...
I found the Debian 13 manpage for cron(1). Notably, in the Conflicting Packages section of the sidebar, it lists cronie, whose manpage matches the ones linked in the question. I guess I could writ...
If I look at my man 1 crontab, it says that crontab -n file will test the suitability of file as a parseable crontab file. If I look at man 1 crontab on Man7 or ManKier, they both say that -n does...
I have determined that the specific app I want was installed as a Flatpak, meaning this is the way you open it: flatpak run com.example.Foo I'd still be interested in a generic way to determine...
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...
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...
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...
