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Linux does have the concept of a RAM DRIVE (multiple concepts actually, including ramfs and tmpfs being common). You should look at https://en.wikipedia.org/wiki/Zram - ZRAM claims to be exactly ...
According to the keyboard layout wiki, keyboard configurations (for both the console and Xorg) can be conveniently set using the localectl command. In order to set a second keyboard layout, we hav...
For most users, in $HOME/.config/gtk-3.0/bookmarks. Otherwise, if you set the XDG_CONFIG_HOME environment variable (which you can inspect with env), in $XDG_CONFIG_HOME/gtk-3.0/bookmarks. From the...
From man xxd, the section on the -r flag (emphasis added): -r | -revert reverse operation: convert (or patch) hexdump into binary. If not writing to stdout, xxd writes into its output file with...
Where can I find documentation on double asterisk in glob expansion? It is discussed in the .gitignore section of Pro Git. It works in ls **/* to list all terminal files. It is supported by py...
What you describe is a typical mixed authoritative/recursive resolver setup. Such a DNS server setup will respond from its own data about zones for which it has explicit configuration, and will per...
I would consider your own tools as the central use case. Seriously, do you want to litter every while read (or your language's equivalent) with this pesky corner case handling? while read -r line ...
There are many GUI apps on my computer that show up as eg. items in the start menu. When I launch these, what if I want to control how exactly they are launched, such as setting environment variabl...
The simple and obvious solution: sed 's/^ *//;s/ *$//' Many recipes you find online will erroneously add a g flag, but these regular expressions can only match once per line anyway. (In some m...
How does the list of packages differ from that in a fresh install? The easiest way, if you have the data for it, would probably be to parse the APT logs (particularly /var/log/apt/history.log*...
You might be enlightened by reading the man page for file(1). A brief quotation: This manual page documents version 5.35 of the file command. file tests each argument in an attempt to classify...
Canina's answer contains a good solution if you only want to reach a small number of hosts. But requiring a port[1] for each host you want to reach doesn't scale to many hosts. It also requires yo...
It is possible - while being unlikely - that /proc/config.gz does not match the actual kernel configuration. Normally, /proc/config.gz should reflect the kernel configuration truthfully. But wheth...
I've got a Raspberry Pi running Raspbian, which I'd like to reinstall from scratch. However over time I've made many changes to the configuration (installed new packages, changed the name of the de...
A shell script! You don't need a shebang line, just invoke it as /bin/sh script.sh, but if you want to add one (e.g. perhaps you anticipate doing this more than once) Then you can copy the command...
You can't expect an attacker to abide by any particular rulebook. In fact, if they did, then the defenders' job would be so much easier. That's why attackers don't do it. Remember the adage: a de...
Categories should be used for broad categories of posts. For example, see how Writing separates the main Q&A from writing challenges, or how Cooking separates its Q&A from recipes, or how M...
On a Debian Buster system I use, the password for connecting to a VPN is stored in the GNOME Keyring. Therefore, whenever I want to connect to the VPN in question, I get prompted to unlock my keyri...
As we start on building a new community here together, we're bound to find some sticking points. Those might be bugs, new features you need, things you need support with... whatever they are, the C...
The reason why you don't find this in man ls is that the GNU project (that developed Coreutils) usually provides the complete documentation of its components not in classic manual pages, but in so ...
You can edit the file you see in less by pressing v. From the man page: v Invokes an editor to edit the current file being viewed. The editor is taken from the envir...
GNU Screen and Tmux allow you to run command-line programs on a server, and 'disconnect' from them but let them keep running remotely. This is great if your primary computer is a laptop and it has...
Have a look at Xpra. I only use it locally but it's intended to forward from remote hosts as well.
Technically, you don't need an /etc/hosts file at all if you have some other form of name resolution available - i.e. DNS. In practice, what you have will work nicely, and could be cut down to jus...
To increase the activity of the site (one of the main concerns related to making Codidact grow), I suggested merging Linux Systems with Power Users on Meta. Do you agree or disagree with merging?
