Only the three musketeers regular support
Role: text filtering, add color to filter out content (the default centos7, other versions need to manually add)
grep -o "root"/etc/passwd
-o show only match the content of the
grep -w "root"/etc/passwd
- w exact match filtering out root
grep "root"/etc/passwd
Filter out the "root" contains rows containing the root characters
- w and directly with the difference between the "root"
- w is a precise filter, such as dfkdlfrootjdj represents a line, w. filter does not show this line, and grep -o "root"/etc/passwd will filter out the line
grep -n "root"/etc/passwd
-n filtering out of the line in the file containing the root line number
grep -n "root"/etc/passwd
-r recursive filter, filter the current directory containing all the files and directories "root" all the files and directories
grep -c "root"/etc/passwd
-c statistics including root how many rows
grep -i "root"/etc/passwd
-i said filter ignore case when
grep - A2 "root"/etc/passwd
The grep - B2 "root"/etc/passwd
The grep - C2 "root"/etc/passwd
Line - A representative filter out with root and down the two lines
- B on behalf of the filter out lines contain root and up two
- C, filter out the line containing the root and down and up two rows
Under the regular chapter
CodePudding user response:
to write well, is the color is too bright