Find command
Format: find [option] [Path] [filter condition] [processing action]
Path: default current directory
Filter condition: set filter condition on file/directory
Processing action: display all files by default
Filter condition:
-name Namefile or directory name, case sensitive
-iname NameCase-insensitive Filter by file
-user User_Nameowner Filter
-group Group_Nameby file group Filter
-uid UIDby UID, when a user is deleted, only the UID of the user remains on the file/directory, no user name is displayed
-gid GIDFilter by GID, when a group is deleted , only the GID is left on the file/directory, no group name shows
-nouserthe files left by the deleted user The files left
-nogroupby the deleted group are
-size [+|-] n [unit]
+|-
-size n [unit]n-1 to n units of files
-size +n [unit]larger than n+1 units of files are
-size -n [unit]less than n-1 units of file
unit
cbits kKB MMB GGB
filtered by timestamp
in days: ---------(now-n-1)--------(now-n)- -------now---->
-atime [+|-] nHours, minutes and seconds are still valid
-atime n (now-n-1) to (now-n)
-atime -n(now-n) to (now) to be accessed to
-atime +n(now-n-1) ) used
-mtime [+|-] nto be the same as atime
-ctime [+|-] nand atime
[root@ZYB test_dir1]# date
Wed Apr 25 09:05:23 CST 2018
[root@ZYB test_dir2]# ls
test_file00 test_file01 test_file10 test_file11 test_file20 test_file21
[root@ZYB test_dir1]# touch -mt "04220700.00" test_file00
[root@ZYB test_dir1]# touch -mt "04221300.00" test_file01
[root@ZYB test_dir1]# touch -mt "04230700.00" test_file10
[root@ZYB test_dir1]# touch -mt "04231300.00" test_file11
[root@ZYB test_dir1]# touch -mt "04240700.00" test_file20
[root@ZYB test_dir1]# touch -mt "04241300.00" test_file21
[root@ZYB test_dir1]# stat test_file* | grep "Mod"
Modify: 2018-04-22 07:00:00.000000000 +0800
Modify: 2018-04-22 13:00:00.000000000 +0800
Modify: 2018-04-23 07:00:00.000000000 +0800
Modify: 2018-04-23 13:00:00.000000000 +0800
Modify: 2018-04-24 07:00:00.000000000 +0800
Modify: 2018-04-24 13:00:00.000000000 +0800
[root@ZYB test_dir1]# find -mtime 1
./test_file20
./test_file11
[root@ZYB test_dir1]# find -mtime -1
.
./test_file21
[root@ZYB test_dir1]# find -mtime -2
.
./test_file20
./test_file21
./test_file11
[root@ZYB test_dir1]# find -mtime +2
./test_file00 In minutes: --------(now-x)--------(now-x+1)-------now----> The
-amin [+|-] nsecond unit is still valid
-amin x (now-x) to (now-x+1)
-amin -x(now-x) to (now)
-amin +x(now-x) before
-mmin [+|-] xthe same amin
-cmin [+|-] xthe same as amin
[root@ZYB test_dir2]# ls
test_file00 test_file03 test_file10 test_file13 test_file20 test_file23
test_file01 test_file04 test_file11 test_file14 test_file21 test_file24
test_file02 test_file05 test_file12 test_file15 test_file22 test_file25
[root@ZYB test_dir2]# stat test_file0? | grep "Modify"
Modify: 2018-04-25 08:29:05.000000000 +0800
Modify: 2018-04-25 08:29:15.000000000 +0800
Modify: 2018-04-25 08:29:25.000000000 +0800
Modify: 2018-04-25 08:29:35.000000000 +0800
Modify: 2018-04-25 08:29:45.000000000 +0800
Modify: 2018-04-25 08:29:55.000000000 +0800
[root@ZYB test_dir2]# stat test_file1? | grep "Modify"
Modify: 2018-04-25 08:30:05.000000000 +0800
Modify: 2018-04-25 08:30:15.000000000 +0800
Modify: 2018-04-25 08:30:25.000000000 +0800
Modify: 2018-04-25 08:30:35.000000000 +0800
Modify: 2018-04-25 08:30:45.000000000 +0800
Modify: 2018-04-25 08:30:55.000000000 +0800
[root@ZYB test_dir2]# stat test_file2? | grep "Modify"
Modify: 2018-04-25 08:31:05.000000000 +0800
Modify: 2018-04-25 08:31:15.000000000 +0800
Modify: 2018-04-25 08:31:25.000000000 +0800
Modify: 2018-04-25 08:31:35.000000000 +0800
Modify: 2018-04-25 08:31:45.000000000 +0800
Modify: 2018-04-25 08:31:55.000000000 +0800
[root@ZYB test_dir2]# date
Wed Apr 25 08:48:19 CST 2018
[root@ZYB test_dir2]# find -mmin 18
./test_file20
./test_file21
./test_file15
./test_file13
./test_file14
./test_file12
[root@ZYB test_dir2]# date
Wed Apr 25 08:53:31 CST 2018
[root@ZYB test_dir2]# find -mmin -19
.
./test_file20
./test_file21
./test_file15
./test_file24
./test_file13
./test_file14
./test_file23
./test_file25
./test_file22
[root@ZYB test_dir2]# date
Wed Apr 25 08:49:33 CST 2018
[root@ZYB test_dir2]# find -mmin +23
./test_file02
./test_file11
./test_file00
./test_file04
./test_file10
./test_file12
./test_file01
./test_file05
./test_file03 Use the permission as the filter condition -perm [+|-] MODE
-perm MODEto match
-perm +MODEany specified permission bit of any user type exactly, -to be /replaced by the specified permission bit of the
-perm -MODEspecified user type When the
filter conditions are combined, the brackets need to be escaped
[root@ZYB ~]# find /usr/ -not -user root -not -user bin -ls
2102377 0 -rw-r--r-- 1 zyb zyb 0 Apr 24 20:18 /usr/haha
[root@ZYB ~]# find /usr/ -not \( -user root -o -user bin \) -ls
2102377 0 -rw-r--r-- 1 zyb zyb 0 Apr 24 20:18 /usr/haha
# -not空格\(空格-user空格root空格-o空格-user空格bin空格\) 空格不能省略 Processing action:
-printprint to standard output and
-lsdisplay it in long format
-exec COMMAND {} \;for processing the found content. The backslash is an escape character, and a space is used between the curly braces and the backslash.
[root@ZYB test_dir1]# ls
test_file1 test_file2
[root@ZYB test_dir1]# find -name "tes*" -exec mv {} {}_haha \; -ok COMMAND {} \;Interactive mode, the same -exec, but requires the user to confirm the executed command
-xargs COMMANDto operate the search content before operating