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Today, I would like to share with you how Linux finds relevant knowledge points about specific documents. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

Whereis

Find the installation path of the software

-b only look for binary files

-m only find help files

-s only find the source code

-u excluding files of the specified type

-f displays only the file name

-B look for binaries in the specified directory

-M looks for help files in the specified directory

-S finds the source code in the specified directory

Locate

Search for files in the file index database

-d search the specified database

Updatedb

Update file index database

Find [path]

Find a file

-name looks for files based on file names

-iname looks for files based on file names, ignoring case

-path looks for files according to the path

-ipath looks for files according to the path, ignoring case

-Files accessed by amin in the past N minutes

-Files accessed by atime in the past N days

-cmin files modified in the past N minutes

-ctime files modified in the past N days

-anewer files that have been read later than reference files

-cnewer files that have been modified later than the reference file

-size finds files based on file size (in b c w k M G)

-type looks for files based on file type. B block device c character device d directory p pipe file f normal file l link s port file

-user finds files by home user

-uid finds files by UID

-group finds files by belonging group

-gid finds files by GID

-empty looks for empty files

Example

# find / usr/-name'* mycat*' queries the path of the file containing mycat in the file name

# find / usr/-name 'mycat*' * query the path of a file whose file name begins with mycat *

# find / usr/-name'* mycat' * * query the path where the file name ends with mycat * *

Find lines that match the specified string from the contents of the file:

$grep "found string" file name

Find the line that matches the regular expression from the contents of the file:

$grep-e regular expression file name

Case-insensitive lookups:

$grep-I "found string" file name

Find the number of matching rows:

$grep-c "found string" file name

Find lines that do not match the specified string from the contents of the file:

$grep-v "found string" file name

Start from the root directory to find all text files with the .log extension and find the lines that contain "ERROR"

Find /-type f-name "* .log" | xargs grep "ERROR"

After the system finds the httpd.conf file, it immediately displays the httpd.conf file information on the screen.

Find/-name "httpd.conf"-ls

Look for a file in the root directory

Find. -name "test"

Find a file containing a string in a directory

Grep-r "zh_CN". /

These are all the contents of the article "how to find specific Files in Linux". Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.

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