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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:
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 $PWD is a variable that is almost always set pwd is a builtin shell command since a long time
How can I get the current working directory? [duplicate] In cases where PWD is set to the pathname that would be output by pwd -P, if there is insufficient permission on the current working directory, or on any parent of that directory, to determine what that pathname would be, the value of PWD is unspecified Assignments to this variable may be ignored
PATH=$PATH:`pwd` - What happens when this command is executed? Then that will add the current directory (pwd is a command that prints the path of the current directory, and `pwd` will be replaced with the output of pwd) to the PATH variable for the duration of your current shell session (util you close the terminal)
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?
bash - Why doesnt the pwd nullary built-in error when provided an . . . So pwd ignored any more arguments than those it requires (zero), whereas exit does not ignore the arguments beyond the single optional argument it accepts Is this a consequence of how the shell handles a command line, or is it a consequence of how pwd and exit have been designed? I wonder if the answer is in fact encoded in the diagram below
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
Make pwd result in terms of - Unix Linux Stack Exchange With Zsh it's as simple as ${(D)PWD} See under "Parameter Expansion Flags" in zshexpn (1): D Assume the string or array elements contain directories and attempt to substitute the leading part of these by names The remainder of the path (the whole of it if the leading part was not substituted) is then quoted so that the whole string can be used as a shell argument This is the reverse of