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A home directory is a file system directory on a multi-user operating system containing files for a given user of the system. The specifics of the home directory (such as its name and location) are defined by the operating system involved; for example, Linux / BSD systems use /home/ username or /usr/home/ username and Windows systems since Windows Vista use \Users\ username .
PATH: a list of directory paths. When the user types a command without providing the full path, this list is checked to see whether it contains a path that leads to the command. HOME and USERPROFILE (Microsoft Windows): indicate where a user's home directory is located in the file system.
dirname is a standard computer program on Unix and Unix-like operating systems.When dirname is given a pathname, it will delete any suffix beginning with the last slash ('/') character and return the result.
This can be useful if the user's shell's internal code can't deal with the directory they are in being recreated; running cd . will place their shell in the recreated directory. cd ~username will put the user in the username's home directory. cd dir (without a /) will put the user in a subdirectory; for example, if they are in /usr, typing cd ...
Modern Linux distributions include a /sys directory as a virtual filesystem (sysfs, comparable to /proc, which is a procfs), which stores and allows modification of the devices connected to the system, [20] whereas many traditional Unix-like operating systems use /sys as a symbolic link to the kernel source tree.
Display the current working directory physical path - without symbolic link name, if any. Example: If standing in a dir /home/symlinked, that is a symlink to /home/realdir, this would show /home/realdir pwd -L: Display the current working directory logical path - with symbolic link name, if any.
This searches every directory for a regular file whose name is myfile and prints it to the screen. It is generally not a good idea to look for files this way. This can take a considerable amount of time, so it is best to specify the directory more precisely. Some operating systems may mount dynamic file systems that are not congenial to find ...
/home: Contains user home directories on Linux and some other systems. In the original version of Unix, home directories were in /usr instead. [15] Some systems use or have used different locations still: macOS has home directories in /Users, older versions of BSD put them in /u, FreeBSD has /usr/home. /lib