Linux command-find: Search for files

The Find command can search for files in a given directory (and its subdirectories) based on the various attributes of the file.

Command format

Find [-h] [-l] [-p] [-D debugopts] [-olevel] [path ...] [Expression]

Command parameter test item

-cmin N
Matches a file or directory that changed state (content or attributes) N minutes ago. If it is less than n minutes, use-N, if more than n minutes, use +n.

-cnewer file
Files or directories that match content or properties that are modified more than file files later.

-ctime N
A file or directory that matches the file status changes (content, attributes, access rights, and so on) in the system n*24 hours ago.

-empty
Match empty files and empty directories.

-group Name
Matches the file or directory that belongs to the name group, and name can be described as either a group name or a reorganized ID.

-iname pattern
Similar to the-name option feature is just case insensitive.

-inum N
A file that matches the index node is n. The test option helps you find all the hard links on a particular index node.

-mmin N
Matches the file or directory to which the content was modified N minutes ago.

-mtime N
Matches only files or directories where the content was changed before n*24 hours.

-name pattern
Matches a file or directory with a specific wildcard pattern

-newer file
Files or directories that match content are modified more closely than file files. This is useful when writing shell scripts for file backups. Each time you create a backup, update a file (such as a log) and use the Find + this parameter option to determine which files changed after the last update.

-nouser
Matches files or directories that do not belong to a valid user. The test option can be used to find files that are part of a deleted account or to detect an attacker's activity.

-nogroup
Match files or directories that do not belong to a valid group

-perm mode
Look for files or directories with access rights that match the established pattern. The established pattern can be expressed in eight or in the form of conformity.

-samefile Name
Similar to the-inum option. Match files with the same index number as the file files.

-size N
Matches a file of size n. +n indicates that the greater than n,-n represents less than N. Find supports metering units with B (representing 512-byte blocks, default units), C (bytes), W (two-byte words), K (KB), M (MB), and G (GB).

-type C
Matches a file of the specified type. The file types supported by Find are B (block device file), C (character device file), D (directory), f (normal file), and L (symbolic link).

-user Name
Matches the file or directory that belongs to the name user. Name can be described as the user name or the user's ID.

Action Item

-delete
Delete the matching file.

-ls
Performs an LS operation on a matching file, outputting its file name and other requested information in a standard format.

-print
The full path of the matching file is output in standard form. When no specific action is specified, the action is the default action.

-quit
Exit once the match is successful.

-exec command {};
A custom action that indicates the name of the action command to be executed,{} curly braces represent the current path, and a semicolon as a required delimiter indicates the end of the command.

Option Item

-depth
The Find program processes the directory before it processes the directory. This parameter option is called automatically when the-delete operation is specified.

-maxdepth levels
When you perform the test condition behavior, set the maximum number of levels that the find program falls into the number of directories.

-mindepth levels
When you apply test conditions and behaviors, set the minimum number of levels that the find program falls into the number of directories.

-mount
Boot find does not traverse directories mounted on other file systems.

-noleaf
Instruct the Find program not to optimize its search based on the assumption that the Unix-like file system is being searched. This option is used when scanning the Dos/windows file system and the CD.

Instance

A) list List of all files in the directory ~/redis/redis-3.0.4/utils/.

Find ~/redis/redis-3.0.4/utils//home/huey/redis/redis-3.0.4/utils//home/huey/redis/redis-3.0.4/utils/ cluster_fail_time.tcl/home/huey/redis/redis-3.0.4/utils/redis_init_script/home/huey/redis/redis-3.0.4/utils/ Mkrelease.sh ...

b) Find all directories of directory ~/redis/redis-3.0.4/utils/.

Find ~/redis/redis-3.0.4/utils/-type d/home/huey/redis/redis-3.0.4/utils//home/huey/redis/redis-3.0.4/ Utils/hyperloglog/home/huey/redis/redis-3.0.4/utils/create-cluster/home/huey/redis/redis-3.0.4/utils/lru

c) Find all common Files under directory ~/redis/redis-3.0.4/utils/that are suffixed with. Sh and are larger than 1KB.

Find ~/redis/redis-3.0.4/utils/-type f-name "*.sh"-size +1k/home/huey/redis/redis-3.0.4/utils/install_ server.sh

D) Look for a file with a pattern of 0775 or 0755 under directory ~/redis/redis-3.0.4/src/(note the space on the command line).

find ~/redis/redis-3.0.4/src/\ (-type f-perm 0775 \)-or \ (-type f-perm 0755 \)/home/huey/redis/redis-3.0.4/s rc/redis-benchmark/home/huey/redis/redis-3.0.4/src/mkreleasehdr.sh/home/huey/redis/redis-3.0.4/src/ redis-check-dump/home/huey/redis/redis-3.0.4/src/redis-check-aof/home/huey/redis/redis-3.0.4/src/redis-server/ home/huey/redis/redis-3.0.4/src/redis-sentinel/home/huey/redis/redis-3.0.4/src/redis-trib.rb/home/huey/redis/ Redis-3.0.4/src/redis-cli

e) Perform the LS operation on the matching file.

Find ~/redis/redis-3.0.4/src/-type f-perm 0755-ls919417 6316-rwxr-xr-x   1 Huey      Huey       6466357 SEP 2 6 13:20/home/huey/redis/redis-3.0.4/src/redis-sentinel

f) Delete the matching file.

Find ~/redis/redis-3.0.4/src/-type f-perm 0755-delete

g) Copy the matching files to the specified directory by customizing the file.

[[email protected] ~]$ mkdir ~/tmpdir[[email protected] ~]$ find ~/redis/redis-3.0.4/src/-type f-perm 0755-exec cp ' {} ' ~/tmpdir '; ' [[email protected] ~]$ ll ~/tmpdir/total 6316-rwxr-xr-x 1 Huey Huey 6466357 OCT-10:04 Redis-sentinel

Linux command-find: Search for files