What does ==$0 (double equals dollar zero) mean in Chrome …
May 3, 2016 · This is Chrome's hint to tell you that if you type $0 on the console, it will be equivalent to that specific element. Internally, Chrome maintains a stack, where $0 is the selected element, $1 is the element that was last selected, $2 would be the one that was selected before $1 and so on. Here are some of its applications:
choosing between $0 and BASH_SOURCE - Stack Overflow
Jan 26, 2016 · The whole point of this trick is that ${BASH_SOURCE[0]} gets evaluated to non-empty string (and becomes the result of the entire expression) in Bash, while the $0 only gets evaluated if the shell is not Bash (and does not define BASH_SOURCE). In ZSH, the equivalent of ${BASH_SOURCE[0]} is $0. – user7610.
What do $? $0 $1 $2 mean in shell script? - Stack Overflow
Mar 25, 2015 · These are positional arguments of the script. Executing. ./script.sh Hello World. Will make. $0 = ./script.sh. $1 = Hello. $2 = World. Note. If you execute ./script.sh, $0 will give output ./script.sh but if you execute it with bash script.sh it will give output script.sh.
What is the meaning of $0 in the Bash shell
From Bash Manual. $0 Expands to the name of the shell or shell script. This is set at shell initialization. If Bash is invoked with a file of commands (see Section 3.8 [Shell Scripts], page 39), $0 is set to the name of that file. If Bash is started with the -c option (see Section 6.1 [Invoking Bash], page 80), then $0 is set to the first ...
What are $0 and $1 (dollar sign 0 and 1) in an awk script?
In awk, $0 is the whole line of arguments, whereas $1 is just the first argument in a list of arguments separated by spaces. So if I put "Mary had a little lamb" through awk, $1 is "Mary", but $0 is "Mary had a little lamb". The second line is trying to find the substring "Mary" in the whole line given to awk. edited Mar 26, 2013 at 21:15. 0x90.
javascript - What is the meaning of == $0 that is shown in inspect ...
Jul 6, 2016 · When I used inspect elements in Google Chrome there is always == $0 at the end of the selected element. This is something new and I hadn't see it in the older versions of the Google Chrome: This is something new and I hadn't see it in the older versions of the Google Chrome:
Will $0 always include the path to the script?
In the most common cases, $0 will contain a path, absolute or relative to the script, so. (assuming there's a readlink command and it supports -e) generally is a good enough way to obtain the canonical absolute path to the script. $0 is assigned from the argument specifying the script as passed to the interpreter.
complex analysis - What is $0^{i}$? - Mathematics Stack Exchange
Jan 12, 2015 · $$\lim_{n\to 0} n^{i} = \lim_{n\to 0} e^{i\log(n)} $$ I know that $0^{0}$ is generally undefined, but can equal one in the context of the empty set mapping to itself only one time. I realize that in terms of the equation above, the limit does not exist, but can $0^{i}$ be interpreted in a way to assign it a value?
How does awk '!a [$0]++' work? - Unix & Linux Stack Exchange
Oct 7, 2014 · print $0. now we take the ++ apart. remember that this operator does two things: increment the value in the variable and return the original value for further processing. so the ++ becomes two lines: for each line as $0. tmp = a[$0] # get original value. a[$0] = tmp + 1 # increment value in variable.
How to set parameter zero ($0) while executing a script?
1. 0=new-value in zsh or es. set 0 new-value in fish. zsh sets $0 to the name of the function in functions. Same in ksh when the function is declared with function f { ... – Stéphane Chazelas. Jul 23, 2014 at 12:11. This is also discussed on sof here and here. – sqr163.