Linux Talent Formation program i--file Search command

File Search: Locate file name

Locate is through the database search, one day update, the day plus should use UpdateDB, update the database

Locate Locate

Locate Search background database:/var/lib/mlocate

can only be searched by file name, but relatively fast

/etc/updatedb.conf Search configuration file

Whereis command name

-B: Look only at the executable file location

-M: see only the Help document location

Can only look at commands that are not from the shell.

which file name

View aliases and command locations

$PATH environment variables, use; split

When you execute the command, go to the path contained in path to find

find [Range] [condition]

Find/–name Install

Search root, by file name

resource-intensive

Wildcard characters:

? Any one

* Any number of

[] One of the parentheses

-iname Case insensitive

-user Search Owner

Find/var/log/–mtime +10 to find Files modified 10 days ago

Atime File access time

CTime changing file properties

-Within 100 days

100 Day

-size 25k File size is exactly 25k, K is lowercase

M is uppercase, is trillion

Not write units is the data block, is a sector, a sector is 512 bytes

-inum number according to the I node number to search

-A logic with meaning

Find/etc–size +20k–a–size–50k to find files larger than 20k less than 50k

-O Logic or

The first command-exec the second command {} \;

Command Two can handle the results of a command search.

grep [Options] string file name

Search for a line in a file containing a string

-V does not contain a string of rows, take the inverse

-I ignores case

Linux Talent Formation program i--file Search command