10.24.2. Contents of Coreutils
Short Descriptions
Base64 encode/decode data and print to standard output |
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Strips any path and a given suffix from a file name |
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Concatenates files to standard output |
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Changes security context for files and directories |
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Changes the group ownership of files and directories |
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Changes the permissions of each file to the given mode; the mode can be either a symbolic representation of the changes to make or an octal number representing the new permissions |
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Changes the user and/or group ownership of files and directories |
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Runs a command with the specified directory as the
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Prints the Cyclic Redundancy Check (CRC) checksum and the byte counts of each specified file |
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Compares two sorted files, outputting in three columns the lines that are unique and the lines that are common |
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Copies files |
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Splits a given file into several new files, separating them according to given patterns or line numbers and outputting the byte count of each new file |
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Prints sections of lines, selecting the parts according to given fields or positions |
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Displays the current time in the given format, or sets the system date |
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Copies a file using the given block size and count, while optionally performing conversions on it |
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Reports the amount of disk space available (and used) on all mounted file systems, or only on the file systems holding the selected files |
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Lists the contents of each given directory (the same as the ls command) |
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Outputs commands to set the |
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Strips the non-directory suffix from a file name |
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Reports the amount of disk space used by the current directory, by each of the given directories (including all subdirectories) or by each of the given files |
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Displays the given strings |
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Runs a command in a modified environment |
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Converts tabs to spaces |
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Evaluates expressions |
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Prints the prime factors of all specified integer numbers |
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Does nothing, unsuccessfully; it always exits with a status code indicating failure |
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Reformats the paragraphs in the given files |
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Wraps the lines in the given files |
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Reports a user's group memberships |
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Prints the first ten lines (or the given number of lines) of each given file |
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Reports the numeric identifier (in hexadecimal) of the host |
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Reports or sets the name of the host |
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Reports the effective user ID, group ID, and group memberships of the current user or specified user |
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Copies files while setting their permission modes and, if possible, their owner and group |
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Joins the lines that have identical join fields from two separate files |
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Creates a hard link with the given name to a file |
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Makes hard links or soft (symbolic) links between files |
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Reports the current user's login name |
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Lists the contents of each given directory |
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Reports or checks Message Digest 5 (MD5) checksums |
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Creates directories with the given names |
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Creates First-In, First-Outs (FIFOs), a “named pipe” in UNIX parlance, with the given names |
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Creates device nodes with the given names; a device node is a character special file, a block special file, or a FIFO |
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Creates temporary files in a secure manner; it is used in scripts |
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Moves or renames files or directories |
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Runs a program with modified scheduling priority |
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Numbers the lines from the given files |
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Runs a command immune to hangups, with its output redirected to a log file |
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Prints the number of processing units available to the current process |
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Dumps files in octal and other formats |
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Merges the given files, joining sequentially corresponding lines side by side, separated by tab characters |
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Checks if file names are valid or portable |
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Is a lightweight finger client; it reports some information about the given users |
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Paginates and columnates files for printing |
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Prints the environment |
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Prints the given arguments according to the given format, much like the C printf function |
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Produces a permuted index from the contents of the given files, with each keyword in its context |
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Reports the name of the current working directory |
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Reports the value of the given symbolic link |
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Prints the resolved path |
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Removes files or directories |
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Removes directories if they are empty |
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Runs a command with specified security context |
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Prints a sequence of numbers within a given range and with a given increment |
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Prints or checks 160-bit Secure Hash Algorithm 1 (SHA1) checksums |
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Prints or checks SHA224 checksums |
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Prints or checks SHA256 checksums |
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Prints or checks SHA384 checksums |
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Prints or checks SHA512 checksums |
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Overwrites the given files repeatedly with complex patterns, making it difficult to recover the data |
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Write a random permutation of the input lines to standard output or a file |
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Pauses for the given amount of time |
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Sorts the lines from the given files |
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Splits the given file into pieces, by size or by number of lines |
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Displays file or filesystem status |
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Runs a command with modified buffering operations for its standard streams |
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Sets or reports terminal line settings |
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Prints checksum and block counts for each given file |
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Flushes file system buffers; it forces changed blocks to disk and updates the super block |
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Concatenates the given files in reverse |
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Prints the last ten lines (or the given number of lines) of each given file |
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Reads from standard input while writing both to standard output and to the given files |
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Compares values and checks file types |
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Runs a command with a time limit |
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Changes file timestamps, setting the access and modification times of the given files to the current time; files that do not exist are created with zero length |
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Translates, squeezes, and deletes the given characters from standard input |
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Does nothing, successfully; it always exits with a status code indicating success |
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Shrinks or expands a file to the specified size |
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Performs a topological sort; it writes a completely ordered list according to the partial ordering in a given file |
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Reports the file name of the terminal connected to standard input |
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Reports system information |
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Converts spaces to tabs |
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Discards all but one of successive identical lines |
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Removes the given file |
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Reports the names of the users currently logged on |
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Is the same as ls -l |
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Reports the number of lines, words, and bytes for each given file, as well as a total line when more than one file is given |
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Reports who is logged on |
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Reports the user name associated with the current effective user ID |
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Repeatedly outputs “y” or a given string until killed |
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Library used by stdbuf |