[Linux] day07--viewing and filtering text

View and filter text

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CatConcatenate
-N Add line number
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TACReverse display of file contents
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MorePage Flip Read Enter next space flip screen Q exit
[Options] File name
Mating Pipe Characters | Output text to do pagination
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LessFull Screen Paging tool
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Head TailIntercept file Header/tail
Head-n tail-n default 10 rows
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REDIRECT outputOverwrite output > Append output >>

Save the command output as a specified file
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Filter Text content grep retrieves the rows that contain the specified string
-I is case-insensitive
-W invert non-conforming condition
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WC Statistics Word count
-L calculates the total row count of text
-W calculates the number of words
-C computes the number of bytes in a file
-M calculates the number of characters

[Linux] day07--viewing and filtering text