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sudo (/ s uː d uː / [4]) is a program for Unix-like computer operating systems that enables users to run programs with the security privileges of another user, by default the superuser. [5] It originally stood for "superuser do", [ 6 ] as that was all it did, and this remains its most common usage; [ 7 ] however, the official Sudo project ...
He later added this capability to the Unix editor ed, which eventually led to the popular search tool grep's use of regular expressions ("grep" is a word derived from the command for regular expression searching in the ed editor: g/re/p meaning "Global search for Regular Expression and Print matching lines"). [15]
find (Unix), a Unix command that finds files by attribute, very different from Windows find; grep, a Unix command that finds text matching a pattern, similar to Windows find; forfiles, a Windows command that finds files by attribute, similar to Unix find; Regular expression; List of DOS commands
The seven standard Unix file types are regular, directory, symbolic link, FIFO special, block special, character special, and socket as defined by POSIX. [1] Different OS-specific implementations allow more types than what POSIX requires (e.g. Solaris doors ).
POSIX defines the following options: [1]-c Treat the file as a mount point.-f Only report processes accessing the named files.-u Append user names in parentheses to each PID. ...
The most common modern use of the sticky bit is on directories residing within filesystems for Unix-like operating systems. When a directory's sticky bit is set, the filesystem treats the files in such directories in a special way so only the file's owner, the directory's owner, or root can rename or delete the file.
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In computing, the process identifier (a.k.a. process ID or PID) is a number used by most operating system kernels—such as those of Unix, macOS and Windows—to uniquely identify an active process. This number may be used as a parameter in various function calls, allowing processes to be manipulated, such as adjusting the process's priority or ...