linux operation and maintenance package sed to use file and text Three Musketeers

1, Find / greater than 1M and type etc directory of all files regular files

2, packing / etc / files for all conf end of the list below, compressed package name for the day time, and copied to the / usr / local / src directory backup .
-cvf the tar date +%F.tar /etc/*.conf

CP 2020-03-22.tar / usr / local / the src

. 3, taken using the IPv4 address sed ifconfig command in the unit

4, delete / etc / fstab file to all # the beginning of the beginning of the line, followed by a blank character of the line behind at least # blank characters and


5, deal with / etc / fstab path, using the sed command remove its directory name and base name