add bash completion

Makefile

@@ -87,3 +87,10 @@ clean:
 
 clear:
 	rm $(BINDIR)/$(NAME)
+
+install:
+	cp lxsh /usr/local/bin
+	cp completion/lxsh.bash /etc/bash_completion.d
+
+uninstall:
+	rm /usr/local/bin/lxsh /etc/bash_completion.d/lxsh.bash

README.md

@@ -27,6 +27,12 @@ sudo mv lxsh /usr/local/bin
 
 ## Other
 
+Clone this repository then:
+```shell
+make -j
+sudo make install
+```
+
 See [Build](#build).
 
 # Features
@@ -45,6 +51,7 @@ These commands can be placed anywhere within the script like regular commands.
 
 Reduce code size to a minimum without changing functionality with the `-m` option.
 
+> This option should be safe to use in any situation
 
 #### Behaviors of the minify option
 

completion/lxsh.bash

@@ -0,0 +1,3 @@
+#/usr/bin/env bash
+
+complete -F _longopt lxsh