linux coreutils

coreutils
它包含有三个基本的套件，文件、shell、文本，各包含的程序如下：
1、文件套件

    * chgrp - Changes file group ownership.
    * chown - Changes file ownership.
    * chmod - Changes file permissions.
    * cp - Copies files.
    * dd - Copies and converts a file.
    * df - Shows disk free space on filesystems.
    * dir - Gives a brief directory listing.
    * dircolors - Setup program for the color output of GNU ls.
    * du - Shows disk usage on filesystems.
    * install - Copies file and sets its permissions.
    * ln - Creates file links.
    * ls - Lists directory contents.
    * mkdir - Creates directories.
    * mkfifo - Creates FIFOs (named pipes).
    * mknod - Creates special files.
    * mv - Moves files.
    * rm - Removes (deletes) files.
    * rmdir - Removes empty directories.
    * shred - Destroy data in files.
    * sync - Synchronizes filesystem buffers and disk.
    * touch - Changes file timestamps.
    * vdir - Long directory listing.

2、shell套件

    * [ - Check file types and compare values
    * basename - Removes the path prefix from a given pathname.
    * chroot - Changes the root directory.
    * date - Prints/sets the system date and time.
    * dirname - Removes the last level or filename from a given pathname.
    * echo - Prints a line of text.
    * env - Displays/modifies the environment.
    * expr - Evaluates expressions.
    * factor - Prints prime factors.
    * false - Returns an unsuccessful exit status.
    * groups - Print the groups that the user is a member of.
    * hostid - Print the numeric identifier for the current host
    * hostname - Print or set the machine name.
    * id - Print real/effective uid/gid.
    * logname - Print current login name.
    * nice - Modify scheduling priority.
    * nohup - Allows a command to continue running after logging out.
    * pathchk - Check file name portability.
    * pinky - Lightweight finger
    * printenv - Prints environment variables.
    * printf - Formats and prints data.
    * pwd - Print the current working directory.
    * seq - Print numeric sequences.
    * sleep - Suspends execution for a specified time.
    * stty - Print/change terminal settings.
    * su - Allows you to adopt the id of another user or superuser.
    * tee - Sends output to multiple files.
    * test - Evaluates an expression.
    * true - Returns a successful exit status.
    * tty - Print terminal name.
    * uname - Print system information.
    * users - Print current user names.
    * who - Print a list of all users currently logged in.
    * whoami - Print effective user id.
    * yes - Print a string repeatedly.

3、文本操作套件

    * cat - concatenate files and print to the standard output
    * cksum - checksum and count the bytes in a file
    * comm - compare two sorted files line by line
    * csplit - split a file into sections determined by context lines
    * cut - remove sections from each line of files
    * expand - convert tabs to spaces
    * fmt - simple optimal text formatter
    * fold - wrap each input line to fit in specified width
    * join - join lines of two files on a common field
    * md5sum - compute and check MD5 message digest
    * nl - number lines of files
    * od - dump files in octal and other formats
    * paste - merge lines of files
    * pr - convert text files for printing
    * ptx - produce a permuted index of file contents
    * sort - sort lines of text files
    * split - split a file into pieces
    * sum - checksum and count the blocks in a file
    * tac - concatenate and print files in reverse
    * tail - output the last part of files
    * tr - translate or delete characters
    * tsort - perform topological sort
    * unexpand - convert spaces to tabs
    * uniq - remove duplicate lines from a sorted file
    * wc - print the number of bytes, words, and lines in files
    * head - output the first part of files