Shell Command Learning

The Find command is used primarily for file or directory lookups.

-print indicates that a matching file name is printed

-print0 indicates that each matching file name is printed using the ' \ \ ' delimiter

-name: Find by file name

-iname Ignore letter case

If you want to match one of several conditions, you can use the OR action:

-path matches the file path as a whole.

-regex: similar to path but matched based on regular expressions

！ The meaning of negative parameters:

Search based on directory depth:

the Find command iterates through all subdirectories as it is used. Parameters -maxdepth and-mindepth can be used to limit the depth of traversal.

Search by File type:

Filter the file types with-type.

List all directories:-type D

List only ordinary files:-type f

List only Symbolic Links:-type l

Search by file time:

There are three timestamps in each file in the Unix/linux file system:

1. Access Time (-atime): User last access time
1. Modification Time (-mtime): The time the file content was last modified
1. Change Time (-ctime): File metadata (metadata, such as permissions or ownership) time of last change

- represents less than,+ means greater than

FILE-size-based search:

Find files larger than 2KB :find-type f-size +2k

Units are:

B -Block( Kbytes)

C- Byte

W -word (2 bytes)

K -kilobyte

M- Megabyte

G -gigabyte

To delete a matching file:

-delete

Match based on file permissions and ownership:

-perm Permission Value

Let find skip a specific directory:

For example, in the version control system git to find a specific file when the skip . Git directory:

Find.−name". GIt"−prune -O−typef−print

which −n< Span id= "mathjax-span-38" class= "Mi" >am e " . gi t " −pr un e

to ignore a directory and the files under it, Use-prune;

−typef−print indicates the action that needs to be performed.

Shell Command Learning