update readme

README.md

@@ -68,6 +68,8 @@ cd proot-distro
 Dependencies: bash, bzip2, coreutils, curl, findutils, gzip, ncurses-utils,
 proot, sed, tar, xz-utils
 
+If you want command line auto complete, install the `bash-completion` package.
+
 ## Functionality overview
 
 PRoot Distro aims to provide all-in-one functionality for managing the
@@ -93,6 +95,24 @@ Example of installing the distribution:
 proot-distro install debian
 ```
 
+Some commands support aliases. For example, instead of
+```
+proot-distro list
+proot-distro install debian
+proot-distro login debian
+proot-distro remove debian
+```
+
+you can type this:
+```
+proot-distro ls
+proot-distro i debian
+proot-distro sh debian
+proot-distro rm debian
+```
+
+Information about supported aliases can be viewed in help for each command.
+
 Known distributions are defined through plug-in scripts, which define URLs
 from where root file system archive will be downloaded and set of checksums
 for integrity check. Plug-ins also can define a set of commands which would
@@ -113,6 +133,8 @@ This command will show the help information about `proot-distro` usage.
 
 Command: `backup`
 
+Aliases: `bak`, `bkp`
+
 Backup specified distribution and its plug-in into tar archive. The contents
 of backup can be either printed to stdout for further processing or written
 to a file.
@@ -134,6 +156,8 @@ done by user through external commands.*
 
 Command: `install`
 
+Aliases: `add`, `i`, `in`, `ins`
+
 Install a distribution specified by alias - a short name referring to the
 plug-in of chosen distribution.
 
@@ -160,13 +184,17 @@ in directory with others (`$PREFIX/etc/proot-distro`).
 
 Command: `list`
 
+Aliases: `li`, `ls`
+
 Shows a list of available distributions, their aliases, installation status
 and comments.
 
 ### Start shell session
 
 Command: `login`
 
+Aliases: `sh`
+
 Execute a shell within the given distribution. Example:
 ```
 proot-distro login debian
@@ -250,10 +278,16 @@ Login command supports these behavior modifying options:
   Do not kill processes when shell session terminates. Typically will cause
   session to hang if you have any background processes running.
 
+* `--kernel`
+
+  Set the kernel release and compatibility level to given value.
+
 ### Uninstall distribution
 
 Command: `remove`
 
+Aliases: `rm`
+
 This command completely deletes the installation of given system. Be careful
 as it does not ask for confirmation. Deleted data is irrecoverably lost.
 
@@ -266,6 +300,8 @@ proot-distro remove debian
 
 Command: `rename`
 
+Aliases: `mv`
+
 Rename the distribution by changing the alias name, renaming its plug-in and
 root file system directory. In case when default distribution is being renamed,
 a copy of plug-in will be created.
@@ -281,6 +317,8 @@ Only installed distribution can be renamed.
 
 Command: `reset`
 
+Aliases: \-
+
 Delete the specified distribution and install it again. This is a shortcut for
 ```
 proot-distro remove <dist> && proot-distro install <dist>
@@ -297,6 +335,8 @@ Same as with command `remove`, deleted data is lost irrecoverably. Be careful.
 
 Command: `restore`
 
+Aliases: \-
+
 Restore the distribution from the given proot-distro backup (tar archive).
 
 Restore operation performs a complete rollback to the backup state as was in
@@ -315,6 +355,8 @@ proot-distro restore ./pd-debian-backup.tar.xz
 
 Command: `clear-cache`
 
+Aliases: `clear`, `cl`
+
 This will remove all cached root file system archives.
 
 ## Adding distribution