Directory Operation

1.2 Directory Operation command 1.2.1 View directory the command for viewing directory content is LS, which displays the contents of the current directory by default, and can be viewed by giving one or more directory names at the location of the command line arguments. The syntax format for the command is: LS [options] ... [filename] ... the LS command has multiple command-line options, such as:-A: Lists all files, including those with "." First file;-D: If you are following a directory, use this parameter to output only the name of the directory;-L: Displays file entries in long format, including ...

8.2.1 Directory Operation command 8.2.1.1 view directory The command for viewing the contents of a directory is LS, which displays the contents of the current directory by default, and can be viewed by giving one or more directory names at the location of the command line arguments. The syntax format for the command is: LS [options] ... [filename] ... the LS command has multiple command-line options, such as the parameter feature description-a lists all files, including the "." First file-D if the following is a directory, then use this parameter to output only the name of the directory-L use the long format display ...

This article is mainly introduced in php tutorial directory operations functions is_dir, rd_dir, mkdir and other commonly used directory operation function examples. * / function dir_writeable ($ dir) / / Custom function extensions to create a writable directory {if (! is_dir ($ dir)) & nb ...

1, to prevent jumping out of the web directory first modify httpd.conf, if you only allow your PHP script program in the Web directory operation, you can also modify the httpd.conf file restrictions on the operation of PHP path. For example, your web directory is/usr/local/apache/htdocs, then add a few lines in the httpd.conf: Php_admin_value open_basedir/usr/local/apache/htdocs ...

The clear command clears the terminal window. Cat is a shorthand for concatenate (chain), meaning merging files. This command can display the contents of a file (often used with more), or combine multiple files into one file.