Locate and find: two file search commands

Locate and find: two command for searching files: this command requires the database indexed in the background as the support when running. in Ubuntu, this database file is located in varcachelocatelocatedb. In general, this database file is automatically updated by cron every day through the locate and find: two search file commands locate: this command requires the database to be indexed in the background for support during running, in Ubuntu, the database file is located in/var/cache/locate/locatedb. Generally, this database file is automatically updated through cron every day. If the update is unfortunately not obtained, you can execute sudo updatedb to manually update the update. If you want to find a file named linux.html in the system, you can execute the command: locate linux.html. The locate search speed is very fast, and the results will be listed later. Locate has a very useful option-r, which allows you to use regular expressions when searching for files. Find: this is an important file search command in another Linux system. The find command is very powerful. it is generally used as the name of the find location-name file. For example, if you want to find the linux.html file in the/root directory, you can run find/-name linux.html. In addition to searching for files by file name, you can also use the-size n option to specify the file size), Time (for example,-atime n indicates to search for files accessed n days ago) to search for files. In addition, the find command also supports regular expressions when searching files. you only need to specify the-regex option.