locate command

an introduction

1. Grammar

locate filename

Search by filename in the backend database for faster searches.

2. The background database searched by the locate command

/var/lib/mlocate

The database is updated once a day by default.

3. Force database update

updatedb

4. Advantages

quick

5. Disadvantages

Only search by file name

 

Two actual combat

2. [root@localhost test]# ls
3. abc abc.soft
4. [root@localhost test]# updatedb
5. [root@localhost test]# locate abc.soft
6. /root/test/abc.soft
7. [root@localhost test]# touch abcdef
8. [root@localhost test]# locate abcdef
9. [root@localhost test]# updatedb
10. [root@localhost test]# locate abcdef
11. /root/test/abcdef
12. [root@localhost test]# locate mlocate
13. /etc/cron.daily/mlocate
14. /usr/share/doc/mlocate-0.26
15. ......
16. /var/lib/mlocate
17. /var/lib/mlocate/mlocate.db
18. /var/lib/mlocate/mlocate.db.FhTi2M

Three /etc/updatedb.conf configuration file

 

lolate whereis which all follow this rule.

 

Four actual combat

1. [root@localhost test]# touch /tmp/cakin2425
2. [root@localhost test]# updatedb
3. [root@localhost test]# locate cakin2425
4. [root@localhost test]# cat /etc/updatedb.conf
5. PRUNE_BIND_MOUNTS ="yes"
6. PRUNEFS ="9p afs anon_inodefs auto autofs bdev binfmt_misc cgroup cifs coda configfs cpuset debugfs devpts ecryptfs exofs fuse fuse.sshfs fusectl gfs gfs2 hugetlbfs inotifyfs iso9660 jffs2 lustre mqueue ncpfs nfs nfs4 nfsd pipefs proc ramfs rootfs rpc_pipefs securityfs selinuxfs sfs sockfs sysfs tmpfs ubifs udf usbfs"
7. PRUNENAMES =".git .hg .svn"
8. PRUNEPATHS ="/afs /media /mnt /net /sfs /tmp /udev /var/cache/ccache /var/lib/yum/yumdb /var/spool/cups /var/spool/squid /var/tmp"