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Removes the path prefix from a given pathname chroot: Changes the root directory date: Prints or sets the system date and time dirname: Strips non-directory suffix from file name du: Shows disk usage on file systems echo: Displays a specified line of text env: Displays and modifies environment variables: expr: Evaluates expressions factor ...
Displays how a name would be interpreted if used as a command ulimit: Misc Optional (XSI) Set or report file size limit umask: Misc Mandatory Get or set the file mode creation mask System III unalias: Misc Mandatory Remove alias definitions uname: Misc Mandatory Return system name PWB UNIX uncompress: Misc Optional (XSI) Expand compressed data ...
pax is an archiving utility available for various operating systems and defined since 1995. [1] Rather than sort out the incompatible options that have crept up between tar and cpio, along with their implementations across various versions of Unix, the IEEE designed a new archive utility pax that could support various archive formats with useful options from both archivers.
The -L flag will cause the find command to follow symbolic links. The -H flag will only follow symbolic links while processing the command line arguments. These flags are specified in the POSIX standard for find. [6] A common extension is the -P flag, for explicitly disabling symlink following. [7] [8] At least one path must precede the expression.
A full file reference (pathname in today's parlance) consists of a filename, a filetype, and a disk letter called a filemode (e.g. A or B). Minidisks can correspond to physical disk drives, but more typically refer to logical drives, which are mapped automatically onto shared devices by the operating system as sets of virtual cylinders.
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.
In computing, cut is a command line utility on Unix and Unix-like operating systems which is used to extract sections from each line of input — usually from a file. It is currently part of the GNU coreutils package and the BSD Base System.
Specifies an extended address and port to which the server should connect. EPSV RFC 2428 Enter extended passive mode. FEAT RFC 2389 Get the feature list implemented by the server. HELP RFC 959 Returns usage documentation on a command if specified, else a general help document is returned. HOST RFC 7151 Identify desired virtual host on server ...