Some common usages of Linux "Three musketeers" and the function of some parameters

Share some of the usage and parameters of the Linux "Three Musketeers" today
grep filter ""
What you see in single quotes is what you gain
Double quote special symbol will be parsed
The anti-lead line runs inside the command to show up on the screen to stay

grep filter ""

-N Display Line number
"." Any one character
-V exclusion, de-
-o progressive output what each match to
-L Show file name only

-E
Sed takes line f to change the contents of a file
-A to each line under the content of the chase home
Sed ' a wode ' lidao.txt
-R Support Regular
-N cancels the default output
-p Display or print
-I modify the contents of the file first backup
awk Fetch column Calculation

Awk-f ' condition {action} '

-F delimiter
NR denotes line number
{print} displays
This line of content

Fing/oldboy =type f-name ". Log"
Find is passed to other commands via |xergs
-type
-size size
-atime

Some common usages of Linux "Three musketeers" and the function of some parameters