Sort, uniq text sorting

To be improved... sort: it is very efficient and powerful to implement the text sorting algorithm. the content of the original file is not modified. only the content output on the screen is modified. for example, sort/etc/fstab #-u removes duplicate rows. #-n sort by numerical value #-r sort in descending order example: head-n6/etc/passwd...

 

To be improved...

Sort: it is very efficient and powerful to implement the text sorting algorithm.

The content of the original file is not modified. only the content output on the screen is modified.

Example: sort/etc/fstab

#-U remove duplicate rows.

#-N sort by value

#-R sort in descending order

Example: head-n 6/etc/passwd | sort-r

Segment Separator

#-T specifies the segment separator

#-K sorting of specified segments

Example: head-n 6/etc/passwd | sort-t:-k 3

Uniq, sort-u

Uniq only recognizes duplicate rows and must be followed

Sort | uniq

Uniq-u only displays rows with no duplicates

-D: only duplicate rows are displayed.

-Row c appears several times

This article is from the "Wei's Linux bar" blog