A linux command-WC command per day

Syntax: WC [options] File ...

Description: This command counts the number of bytes, words, and lines in a given file. If the file name is not given, it is read from the standard input. The WC also gives the president count of all specified files. The word is the largest string separated by the space character area.

The command options have the following meanings:

-C Count bytes.

-L COUNT the number of rows.

-W counts the number of words.

These options can be used in combination.

The order and number of output columns are not affected by the order and number of options.

Always appear in the following order and at most one column per item.

Number of rows, words, bytes, filenames

If there is no file name in the command line, the file name does not appear in the output.

For example:

$ wc - lcw file1 file2
4 33 file1
7 52 file2
11 11 85 total

Example Analysis:

1. Count the number of JS files in the demo directory:

Find demo/-name "*.js" |wc-l

2. Statistics of all JS file code lines in the demo directory:

Find demo/-name "*.js" |xargs cat|wc-l or Wc-l ' find./-name ' *.js ' |tail-n1

3. Statistics of all JS file code lines in the demo directory, Filtered Blank lines:

Find/demo-name "*.js" |xargs cat|grep-v ^$|wc-l

A linux command-WC command per day