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If you need this in a portable POSIX-compliant script, you should not use which but this instead: command -v find
Objectively, the most accurate way would be to actually count the lines. So you would do wc on each file and add them up. This ends up being not a very useful statistic, because it is sensitive to...
This is an interesting discussion. I am late but want to give my take. I have definitely struggled with deciding where to post. I think that struggle is part of any organized community though. f~~...
Open the Disks application. Select the secondary disk and partition, and in the gears menu click on Edit Mount Options... Uncheck User Session Defaults and uncheck Show in user interface. Opt...
You can use openssl: openssl x509 -in server.crt -text
What command can be used to download the TLS certificate of a site such as https://wikipedia.org?
The existing answer is good, but I'll add a short version. man FOO is the most reliable way. A large majority of programs have a man page, and a large majority of man pages cover all aspects of ...
Cisco's OpenDNS (nothing to do with open source) has this magic domain myip.opendns.com which resolves to your own public IP address when looked up with standard DNS tools. For example with dog (o...
In case Ipify stops being free: https://dnsleaktest.com/ will show you your IP. I don't know if they have an API, but it's easy to parse the HTML: https dnsleaktest.com | rg '\d+\.\d+\.\d+\.\d+' -...
Problem How do I find product and vendor names for use with a xorg.conf file? Neither the xorg.conf nor the xinput manuals specify how to do this. xinput lists info, but the output lacks column ...
Some pacman functions require sudo. When I forget the sudo, you get: error: you cannot perform this operation unless you are root. I then have to press the keys: up, home, s, u, d, o, space, en...
Piper can be used for this. All mice supported by Piper (actually libratbag) are a result of the community reverse engineering the mouse protocol. It will not support all mice, but only selected on...
One way is to use grep: $ grep --count ^ /path/to/the/file The ^ character matches a start of a new line, so it basically counts the number of starting lines.
In Unix systems like Linux, some commands are considered dangerous and only the root user can run them. Normally, you don't login as root. So when you want to run dangerous commands, you must first...
How can a file list be manually filtered with a gitignore file. I want to do the equivalent of git ls-files, but it should work even if I remove .git, so I can't use git(1). Currently, I'm doing ...
You can fake out git as long as you have some empty Git repository available somewhere. git --git-dir=path-to-empty-repo/.git \ ls-files --others --exclude-standard
I'm not an expert on this at all, but so far there are no answers, so I'll try one. "Synchronization" is in the context of multithreading. For those who don't know how multithreading works: Multi...
Use netstat -lp. Typically in such a scenario you will likely be mostly interested in IP sockets, in which case you can also add -A inet,inet6. To get numerical port numbers, add -n as well. (See ...
This can be done by setting the LDAPTLS_REQCERT environment variable to never. For example like this when issuing the command: LDAPTLS_REQCERT=never ldapsearch -H ldaps://example.com:636 ...
I use unrar to extract rar archives sometimes: UNRAR 6.24 freeware Copyright (c) 1993-2023 Alexander Roshal Sometimes the archive root has several files, so if I do unrar x foo.rar it will...
How to pretty print XML in a shell? I have command-line tool which outputs XML in a single line, totally unreadable. I would like something to pipe this into, to turn it into human readable XML wi...
No wonder it's hard to find good programs - it's no longer necessary! At some point this became a built in part of Xorg via xinput. The process is something like this: xinput list and find the ...
Of course every language has some kind of random library... But can you generate custom random strings with just basic CLI tools? For example, we have /dev/random which provides a stream of random...
/dev/random is a stream of every possible value. You're supposed to filter it to take the ones you want. This is efficient, although if the values you want are such that only, say, 1% of what comes...
On my current setup (running Linux Mint 20.3 Cinnamon), I have an administrative user and several ordinary users. I intend for all of these users to be in the same group, which happens to have the ...
