bash completion

.travis.yml

@@ -4,5 +4,6 @@ python:
   - 3.6
   - 3.7
   - 3.8
+  - 3.9
 script:
   - python3 tests.py

README.md

@@ -46,6 +46,7 @@ wikipedia.com
     + [Command clauses](#command-clauses)
     + [Input / output](#input--output)
     + [Regular expressions shortcuts](#regular-expressions-shortcuts)
+    + [Bash completion](#bash-completion)
 
 # Installation
 Install with a single command from [PyPi](https://pypi.org/project/pz/).
@@ -689,3 +690,8 @@ As seen, `a` was incremented 3× times and `b` on twice because we had to proces
     helloworld
     anotherwords
     ```
+
+### Bash completion
+1. Run: `apt-get install bash-completion jq`
+2. Copy: [extra/pz-autocompletion.bash](./extra/pz-autocompletion.bash) to `/etc/bash_completion.d/`
+3. Restart terminal

extra/pz-autocompletion.bash

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+# bash completion for pz
+_pz()
+{
+  local cur
+  local cmd
+
+  cur=${COMP_WORDS[$COMP_CWORD]}
+  cmd=( ${COMP_WORDS[@]} )
+
+  if [[ "$cur" == -* ]]; then
+    COMPREPLY=( $( compgen -W "-h --help -v --verbose -q --quiet -S --setup -E --end -F --filter -f --format -w --whole -n -1 -0 --empty -g --generate --stderr --overflow-safe --search --match --findall --sub" -- $cur ) )
+    return 0
+  fi
+}
+
+complete -F _pz -o default pz