terminal - What does the $ mean in Linux? - Stack Overflow
Jan 6, 2015 · For this particular case following code means: Somebody with user name "user" has logged in to the machine with host name "Linux-003". "~" - represent the home folder of the …
What are the special dollar sign shell variables? - Stack Overflow
Sep 14, 2012 · In Bash, there appear to be several variables which hold special, consistently-meaning values. For instance, ./myprogram &; echo $! will return the PID of the process …
What does "&" at the end of a linux command mean?
Nov 12, 2012 · I am a system administrator and I have been asked to run a linux script to clean the system. The command is this: perl script.pl > output.log & so this command is …
linux - What does $@ mean in a shell script? - Stack Overflow
Apr 3, 2012 · What does a dollar sign followed by an at-sign (@) mean in a shell script? For example: umbrella_corp_options $@
What is the purpose of "&&" in a shell command? - Stack Overflow
Oct 27, 2021 · Furthermore, you also have || which is the logical or, and also ; which is just a separator which doesn't care what happend to the command before.
Meaning of tilde in Linux bash (not home directory)
Meaning of tilde in Linux bash (not home directory) Asked 16 years, 6 months ago Modified 3 years, 11 months ago Viewed 186k times
What is the difference between ~/ and ~ in Linux? - Stack Overflow
Aug 28, 2015 · The tilde (~) is a Linux "shortcut" to denote a user's home directory. Thus tilde slash (~/) is the beginning of a path to a file or directory below the user's home directory.
linux - What is the meaning of a double dollar sign in …
Oct 25, 2014 · As per gnu make official doc: Variable and function references in recipes have identical syntax and semantics to references elsewhere in the makefile. They also have the …
What is the difference between double-ampersand (&&) and …
Sep 4, 2014 · What is the difference between ampersand and semicolon in Linux Bash? For example, $ command1 && command2 vs $ command1; command2
What does the double-asterisk (**) wildcard mean? - Stack Overflow
Nov 7, 2022 · I've tried the following command but I don't understand the results: ls ** What does ** mean? How should I use it?