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- environment variables - What is $PWD? (vs current working directory . . .
So Wikipedia (link) tells me that the command pwd is short for "print working directory", and that makes sense But for the environment variable, the "P" has to be an acronym for something else t
- Is it better to use $ (pwd) or $PWD? - Unix Linux Stack Exchange
If bash encounters $(pwd) it will execute the command pwd and replace $(pwd) with this command's output $PWD is a variable that is almost always set pwd is a builtin shell command since a long time
- Difference in Use between pwd and $PWD - Ask Ubuntu
The pwd binary, on the other hand, gets the current directory through the getcwd(3) system call which returns the same value as readlink -f proc self cwd To illustrate, try moving into a directory that is a link to another one:
- How can I get the current working directory? [duplicate]
In cases where PWD is set to the pathname that would be output by pwd -P, if there is insufficient permission on the current working directory, or on any parent of that directory, to determine what that pathname would be, the value of PWD is unspecified Assignments to this variable may be ignored
- What does pwd output? - Unix Linux Stack Exchange
Does the command pwd in a shell script output the directory the shell script is in?
- What is the difference between cwd and pwd?
What is the difference between cwd and pwd? I've tried googling it, and one of the answers mentioned that depending on some factor (which I sadly do not remember), the implementation (the code I'm assuming) is not the same?
- How do pwd and . determine the current path differently?
Note that calling pwd -P (Physical) will report the correct directory, even if it is a shell builtin (tested inside bash) And, after pwd -P reports the correct value, the memory value gets updated and plain pwd will reort it correctly also
- Merits of `cd pwd` versus `dirname` - Unix Linux Stack Exchange
Are there any merits of the cd pwd approach over the dirname -only approach? It seems like it's just performing extra steps to achieve the exact same result, but I want to make sure there's not some nuance I'm missing
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