Linux Common Pipe Command __linux

1.cut, the data in a row is decomposed cut-d ' separator '-f fields cut-c character range-F to remove the meaning of paragraph, starting from 1: Echo $PATH | Cut-d ': '-F 3,5 Export | Cut-c 12-
2.grep profiling a row of data grep [-ACINV] [--color=auto] ' string ' filename-c calculate the number of times to find a string-I ignore case-n, by the way, output line number-V reverse selection, and output lines without string--co Lor=auto will find string plus color display
3.sort, sorted sort [options] [file or stdin]-f: Ignore case-B: Ignore the first space-m: January name to sort-N: Use numeric sorting (default text type)-r: Reverse sort-u:uniq, same data output row -T: Separator, default tab-k: which interval to order an example: CAT/ETC/PASSWD | Sort (default to first sort, and literal type) passwd: Split, sorted by third field, and sorted numerically cat/etc/passwd | Sort-t ': '-K 3-n
4.uniq, go heavy uniq [-ic]-I: Ignore case-C: Count
5.WC, Count-l there are how many lines-W have how many characters m
6.tee, double directional, transfer data to file and screen tee [-a] file-a has been added to the file 7.tr, output a paragraph of information in the text, or the replacement of text information tr [-DS] SET1 ...-d: Delete the SET1 this string in the message-s : Replace the duplicate character lowercase to replace uppercase: TR ' [A-z] ' [A-z] '
8.col, often used to convert the man page into plain text for easy lookup-x: Replace the TAB key with an equivalent SPACEBAR: Man col | Col-x | cat-a | More
9.join, handle the content between two files, add the same row of two files with the same data join [-TI12] file1 file2-t:join default to spaces split data and compare the first field-I: Ignore case- 1: Indicates which field the first file is to be processed with-2: Same-1 cases: The/etc/passwd/etc/shadow is integrated according to the first field join-t ': '/etc/passwdd/etc/shadow/etc/ passwd According to the fourth field,/etc/group is consolidated according to the third field join-t ': '-1 4/etc/passwd-2 3/etc/group join requires processed files to be sorted beforehand
File as-represents standard input 10.paste pastes the same line of files together. Middle Tab Separate-D: separator paste [d] file1 file2 file3 ...
11.expend, Convert tab to space expand [-T] File-t: followed by a number that indicates how many spaces the tab will be converted to grep ' ^manpath '/etc/man.config | head-3 | Expand-t 6-| Cat-a Unexpand The Space into tab 12.split, a large file based on file size or number of lines cut into small files split [-bl] file Prefix-b: Back to the size of the file to be cut-l: Cut to the number of lines PREFIX: can be used as cutting Leading text of the file, file name
Example: Split a file into a 300k size, and the split filename starts with termcap split-b 300k/etc/termcap termcap merges files into one file: Cat termcap* >> Termback
Output every 10 lines of ls-al output to a file: Ls-al | Split-l 10-lsroot
13.xargs, generates a command parameter, does not support the pipeline command, can provide the command by Xargs to reference standard input