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Change the file ownership PDP-7 UNIX cksum: Filesystem Mandatory Write file checksums and sizes 4.4BSD cmp: Filesystem Mandatory Compare two files; see also diff Version 1 AT&T UNIX comm: Text processing Mandatory Select or reject lines common to two files Version 4 AT&T UNIX command: Shell programming Mandatory Execute a simple command ...
Distinct permissions apply to the owner. Files and directories are assigned a group, which define the file's group class. Distinct permissions apply to members of the file's group. The owner may be a member of the file's group. Users who are not the owner, nor a member of the group, comprise a file's others class. Distinct permissions apply to ...
By default, the command overwrites the file three times with multiple patterns, but the number is user configurable. It has an option to do an additional final overwrite with zeroes, which may help to hide the fact that it was used. By default, shred also shreds file slack (unused space in file allocations). For example, a 5 KB file on a file ...
will first remove baz/, then bar/ and finally foo/ thus removing the entire directory tree specified in the command argument. rmdir will not remove a directory if it is not empty in UNIX. The rm command will remove a directory and all its contents recursively. For example:
File deletion is the removal of a file from a computer's file system. All operating systems include commands for deleting files (rm on Unix and Linux, [1] era in CP/M and DR-DOS, del/erase in MS-DOS/PC DOS, DR-DOS, Microsoft Windows etc.). File managers also provide a convenient way of deleting files. Files may be deleted one-by-one, or a whole ...
Changes the permissions of a file or directory cp: Copies a file or directory dd: Copies and converts a file df: Shows disk free space on file systems dir: Is exactly like "ls -C -b". (Files are by default listed in columns and sorted vertically.) dircolors: Set up color for ls: install: Copies files and set attributes ln: Creates a link to a ...
File-system permissions; chattr, the command used to change the attributes of a file or directory on Linux systems; chown, the command used to change the owner of a file or directory on Unix-like systems; chgrp, the command used to change the group of a file or directory on Unix-like systems
The command is available for various operating systems including DOS, Microware OS-9, [1] IBM OS/2, [2] Microsoft Windows [3] and ReactOS. [4] It is analogous to the Unix rm command and to the Stratus OpenVOS delete_file and delete_dircommands. [5] DEC RT-11, [6] OS/8, [7] RSX-11, [8] and OpenVMS [9] also provide the delete command which can be ...