look
英[lʊk] 美[lʊk]
vt.& vi.Look, look
vi.Look for; pay attention; Facing; looking like ##Third person singular: looks Plural: looks Present participle: looking Past tense: looked Past participle: looked
Linux look command syntax
Function: look command is used to query words.
Syntax: look [-adf][-t<suffix string>][starting string][dictionary file]
Linux look command example
In order to find all lines starting with the letter L in the testfile file, you can enter the following command:
look L testfile
The content of the original file testfile is as follows:
$ cat testfile #查看testfile 文件内容 HELLO LINUX! Linux is a free unix-type opterating system. This is a linux testfile! Linux test
Use the look command in the testfile file to find words starting with "L". The results are as follows:
$ look L testfile #查找以“L”开头的单词 Linux is a free unix-type opterating system. #第二行以“L”开头，列出全句 Linux test #第四行以“L”开头，列出全句