Basic Syntax of Tree command in Linux

Installing `tree` command in Linux

By default, the tree command is not installed. Type the following command to install the same...

Basic Syntax of Tree command in Linux

tree [options]...

Options available in `tree` command in Linux

Options                                                                                                          Description –help  –help  –version Outputs the version of the tree. `-a` or `–all` Includes hidden files and directories in the tree. `-d` or `–dirs-only` List directories only. `-f` or `–full-path` Prints the full path prefix for each file.  `-i` or `–ignore-case`  Ignores case when sorting filenames. -x Stay on the current file system only, as with find -xdev.  -I  Do not list those files that match the wild-card pattern.  `-p` or `–prune` Omits the specified directory from the tree. –filelimit # Do not descend directories that contain more than # entries.  -t Sort the output by last modification time instead of alphabetically. –noreport Omits printing of the file and directory report at the end of the tree listing.  -s  Print the size of each file along with the name. -u  Print the username, or UID # if no username is available, of the file. -g Print the group name, or GID # if no group name is available, of the file -D Print the date of the last modification time for the file listed.  –inodes Prints the inode number of the file or directory  –device Prints the device number to which the file or directory belongs  -F Append a `/’ for directories, a `=’ for socket files, a `*’ for executable files and a `|’ for FIFO’s, as per ls -F  -q Print non-printable characters in file names as question marks instead of the default carrot notation. -N Print non-printable characters as is instead of the default carrot notation.  -r Sort the output in reverse alphabetic order.  –dirsfirst List directories before files.  -n Turn colorization off always, over-ridden by the -C option.  -C  Turn colorization on always, using built-in color defaults if the LS_COLORS environment variable is not set. Useful to colorize output to a pipe.  -A Turn on ANSI line graphics hack when printing the indentation lines. -S Turn on ASCII line graphics (useful when using linux console mode fonts). This option is now equivalent to `–charset=IBM437′ and will eventually be depreciated.  -L level  Max display depth of the directory tree.  -R  Recursively cross down the tree each level directories (see -L option), and at each of them execute tree again adding `-o 00Tree.html’ as a new option.  -H baseHREF  Turn on HTML output, including HTTP references. Useful for ftp sites. baseHREF gives the base ftp location when using HTML output. That is, the local directory may be `/local/ftp/pub’, but it must be referenced as `ftp://host-name.organization.domain/pub’ (baseHREF should be `ftp://hostname.organization.domain’). Hint: don’t use ANSI lines with this option, and don’t give more than one directory in the directory list. If you want to use colors via CSS stylesheet, use the -C option in addition to this option to force color output.  -T title Sets the title and H1 header string in HTML output mode.  –charset charset Set the character set to use when outputting HTML and for line drawing.  –nolinks Turns off hyperlinks in HTML output.  -o file name Send output to file name....

Examples

Display the tree hierarchy of a directory...

Conclusion

In this article we have studied about `tree` command in Linux which is a powerful tool for visualizing directory structure. It also allows user to display the hierarchy of files and directories including hidden ones, sorting the output based on various criteria, it also filters file using patterns and generate HTML output. Overall, we can it is a very useful tool....