The command line pipeline (pipelines) specifically explains
This address: http://blog.csdn.net/caroline_wendy/article/details/24249529
The pipe operator "|"is able to send the standard output (stdout)of a command to the standard input (stdin) of a command.
Filteris the combination of multiple commands together to form a pipe.
Main command:
Sort : sorting;
Uniq, UNIQue, output data without repeated rows; The number of "-D" can output repeated lines;
WC, Word counting (word count); The number of "-L", only the statistical line;
grep, output matching mode, global Regular expressionprint, universal normal form printing;
:
Head, the first few lines of the output file, the default 10 lines; Parameter "-n", specifying the number of rows;
tail, the output file at the end of a few lines, the default 10 lines; Parameter "-n", specifying the number of rows; "-F", real-time (real-time) displays the end information of the file.
Tee, read the standard input (stdin), and then output to standard output (stdout) or file ;
Linux-command line Pipeline (pipelines) specifically explained