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Linux wc command

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Linux wc command to count words.

The use of wc command we can calculate the number of files Byte, words, or the number of columns, if not specify a file name or a given file name is "-", the wc command will read data from the standard input device.

grammar

wc [-clw][--help][--version][文件...]

Parameters:

  • -c or --bytes or --chars show only a few Bytes.
  • -l or --lines display only the number of columns.
  • -w or --words show only words.
  • --help online help.
  • --version display version information.

Examples

In case of default, wc will count the number of rows specified file, words, and bytes. Command is:

wc testfile 

To view the contents of testfile file, you can see:

$ cat testfile  
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Using wc statistical results are as follows:

$ wc testfile           # testfile文件的统计信息  
3 92 598 testfile       # testfile文件的行数为3、单词数92、字节数598 

Among them, the three figures represent the number of bytes of the file testfile lines, words, and files.

If you want more than one file at the same time statistical information, such as statistics while testfile, testfile_1, testfile_2, use the following command:

wc testfile testfile_1 testfile_2   #统计三个文件的信息 

The output is as follows:

$ wc testfile testfile_1 testfile_2  #统计三个文件的信息  
3 92 598 testfile                    #第一个文件行数为3、单词数92、字节数598  
9 18 78 testfile_1                   #第二个文件的行数为9、单词数18、字节数78  
3 6 32 testfile_2                    #第三个文件的行数为3、单词数6、字节数32  
15 116 708 总用量                    #三个文件总共的行数为15、单词数116、字节数708 

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