Shulou(Shulou.com)06/03 Report--

1 locate lookup file using updatedb to establish mlocate.db entire disk file search index affects disk performance.

Locate-I is case-insensitive

Locate-n lists only the first n

Locate-r ". (jpg | png) $" find files ending in jpg or png support j basic regular expressions

2 find real-time search default recursive search

Find [OPTION]... [search path] [search condition] [processing action]

/ etc/passwd-maxdepth specifies the search level this example searches for passwd in the directory 1 below / etc/.

Find / etc/-maxdepth 2-mindepth 2-name filename search up to the second layer at least search the second layer only the second layer

[23:54:08 root@localhost ~] $find / data-depth lists the files first and then lists the folders with changes in arrangement

/ data/scripts37/diskcheck1026.sh

/ data/scripts37/creatuseradd.sh

/ data/scripts37/read23.sh

.

/ data/f1.txt

/ data/dir/f1

/ data/dir

/ data/f2

/ data

-iname "file name": case-insensitive

[00:02:27 root@localhost data] $ll-I

Total 68

100663360 drwxr-xr-x. 2 root root 16 Feb 16 23:51 dir

69-rw-r--r--. 1 root root 0 Feb 16 20:51 f1.txt

85-rw-r--r--. 1 root root 595 Feb 16 23:51 f2

68 drwxr-xr-x. 2 root root 4096 Feb 16 23:13 scripts37

67-rw-r--r--. 1 root root 61440 Feb 16 08:17 scripts37.tar

33554496 drwxr-xr-x. 3 root root 19 Feb 16 15:28 test

[00:02:33 root@localhost data] $find / data/-inum 70

/ data/scripts37/diskcheck1026.sh

[00:06:25 root@localhost data] $ll-I

Total 72

100663360 drwxr-xr-x. 2 root root 16 Feb 16 23:51 dir

69-rw-r--r--. 1 root root 0 Feb 16 20:51 f1.txt

85-rw-r--r--. 2 root root 595 Feb 16 23:51 f2

85-rw-r--r--. 2 root root 595 Feb 16 23:51 f2.link

68 drwxr-xr-x. 2 root root 4096 Feb 16 23:13 scripts37

67-rw-r--r--. 1 root root 61440 Feb 16 08:17 scripts37.tar

33554496 drwxr-xr-x. 3 root root 19 Feb 16 15:28 test

[00:06:35 root@localhost data] $find / data/-samefile / data/f2

/ data/f2

/ data/f2.link

[00:07:08 root@localhost data] $

-regex "PSTTERN": matches the entire file path with PATTERN. Not the file name.

00:10:50 root@localhost data] $find / usr/share/pixmaps/-regex ". * .jpg $"-match completion path

Find / etc-type d search, folder under etc

Find, dev-type b search for block files

Find / data-empty-ls search empty file capitalization is zero

[00:22:44 root@localhost data] $find / data/-empty-ls

69 0-rw-r--r-- 1 root root 0 Feb 16 20:51 / data/f1.txt

Find / data!-empty-ls search for non-empty files! Logic inversion

Find / data-not-empty-ls search for non-empty files

And:-a

Or:-o

Non:-not!

# find / data!-empty-ls-check non-empty files and folders

# find / data-not-empty-ls-check non-empty files and folders

Find / data-name "f"-a-type f lookup starts with f and is a normal file-a can be omitted by default and mode

Find / data-name "f

Find / data-name "f"-o-type f looks for files that start with f or are ordinary files

# find / etc-path'/ etc/sane.d'-a-prune-o-name ".conf"-an and-prune cut the etc/sane.d/ directory and search for .conf files under / etc.

* find / etc (- path "/ etc/sane.d"-o "/ etc/fonts")-a-prune-o-name ".conf" search for files ending in .conf under / etc except, etc/sane.d folder and, etc/fonts folder * *

10240500 records in

10240500 records out

10240 bytes (10 kB) copied, 0.140448 s, 72.9 kB/s

[03:23:35 root@localhost data] $ll F1

-rw-r--r--. 1 root root 10240 Feb 17 03:23 f1

[03:23:41 root@localhost data] $find-size 10k

. / f1

[03:24:06 root@localhost data] $

# find / etc/-szie-6k {find files between 0-5K}

# find / etc/-size + 6k {find files greater than 6k}

Find-atime (default is in days) + 10-10 days old files

Find-atime 10 finds files between the tenth and eleventh days. The unwritten path defaults to the current path

Find-perm 644 finds the exact match of file permissions for the current 644

[04:17:32 root@localhost data] $find-perm-22222

[04:17:49 root@localhost data] $ll

Total 80

Drwxr-xr-x. 2 root root 16 Feb 16 23:51 dir

Drwxr-xr-x. 2 root root 6 Feb 17 00:23 dir2

-. 1 root root 10240 Feb 17 03:23 f1

-rw-r--r--. 1 root root 0 Feb 16 20:51 f1.txt

-rw-r--r--. 1 root root 595 Feb 16 23:51 f2

Lrwxrwxrwx. 1 root root 8 Feb 17 00:08 f2.link-> / data/f2

Equivalent command

[04:38:24 root@localhost data] $find-perm-001 > / data/ls.log

[04:42:48 root@localhost data] $find-perm / 001-ok chmod otakw {}\; find the file and modify the permissions "{}" to get the result-ok must end the syntax requirement with "\;"

< chmod ... ./scripts37 >

? Y

< chmod ... ./scripts37/diskcheck1026.sh >

? Y

< chmod ... ./scripts37/creatuseradd.sh >

? Y

< chmod ... ./scripts37/age.sh >

? Y

< chmod ... ./scripts37/yesorno_case23.sh >

? Y

< chmod ... ./scripts37/count.sh >

? Y

< chmod ... ./scripts37/YESORNO23.sh >

? Y

< chmod ... ./scripts37/systeminfo23.sh >

? Y

< chmod ... ./scripts37/yesorno23.sh >

? Y

< chmod ... ./scripts37/checkdisk.sh >

? Y

< chmod ... ./scripts37/useDISK.sh >

? Y

< chmod ... ./scripts37/set.sh >

? Y

< chmod ... ./test >

? Y

< chmod ... ./test/test1 >

? Y

< chmod ... ./dir >

? Y

< chmod ... ./dir2 >

? Y

< chmod ... ./fid >

? Y

Drwxr-xrwx. 2 root root 16 Feb 16 23:51 dir

Drwxr-xrwx. 2 root root 6 Feb 17 00:23 dir2

-rw-r--r--. 1 root root 0 Feb 16 20:51 f1.txt

Drwxr-xrwx. 2 root root 6 Feb 17 00:35 fid

-rw-r--r--. 1 root root 1540 Feb 17 04:38 flog2.log

-rw-r--r--. 1 root root 325 Feb 17 04:42 ls.log

Drwxr-xrwx. 2 root root 4096 Feb 16 23:13 scripts37

-rw-r--r--. 1 root root 61440 Feb 16 08:17 scripts37.tar

Drwxr-xrwx. 3 root root 19 Feb 16 15:28 test

-rw-. 1 root root 28M Dec 14 08:31 / boot/initramfs-3.10.0-957.el7.x86_64.img

-rw-. 1 root root 11m Dec 14 08:32 / boot/initramfs-3.10.0-957.el7.x86_64kdump.img

Find / etc-name passwd-find + l path + specified file name

[23:42:14 root@localhost scripts37] $find / etc/-maxdepth 1-name passwd

/ data/scripts37.tar

-name supports wildcards such as-name "* .jpg"

-inum n look up by inode number

-samefile name files with the same inode number

-link n Files with n links

[00:13:17 root@localhost data] $find /-user zhonghua-ls-lists the file attributes by the ls of the file that the user searches for zhonghua.

Find /-nouser-find unowned files

67160128 0 drwxr-xr-x 2 root root 6 Feb 16 15:28 / data/test/test1

Support logical conditions

Find / data (- name "f *"-o-type f)-a ls-a default is that logic and priority are high so that priority commands are enclosed in parentheses and need to be escaped first.

~ # find / etc-name "* .conf"-"-" avoid errors

# exclude search

[03:22:12 root@localhost data] $dd if=/dev/zero of=f1 bs=1 count=10240-- create file F1 uppercase 10K bs=1 (1 byte) 1024 bytes is 1K, 10240 bytes is 10k

# find / etc/-size 6k {find uppercase files between 5 and 6K}

# find-atime-10 files within 10 days

[04:14:25 root@localhost data] $find / data/scripts37-perm / 622-ls fuzzy match / 622 is the group to which the owner belongs and other as long as there is a match.

. / f2.link-"means that both the group to which the owner belongs and the other must have write permission

[04:37:54 root@localhost data] $find-perm-001-fls / data/flog2.log

< chmod ... . >

? Y

[04:48:55 root@localhost data] $find-perm / 002-exec ls-l {}\; exec instead of OK no longer prompts for direct results

Total 72

[04:52:44 root@localhost data] $find /-size + 10m-exec ls-lh {}\

-rw-. 1 root root 71M Dec 14 08:29 / boot/initramfs-0-rescue-c8f47886da6d4ec687a38cc0be7425b1.img

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