client: add dfi alias

- `dfi` is now primary unified command (saves fingers)
  * `docker-finance` is still available, as this is only an addition
- Also fixes missing line continuation during install (#104)

client/install.bash

@@ -23,18 +23,18 @@ aliases=~/.bash_aliases
 function docker-finance::install()
 {
   # Environment expectations
-  local -r _alias="alias docker-finance="
+  local -r _alias=("docker-finance" "dfi")
   local _path # full path to docker-finance repository
   _path="$(dirname "$(realpath -s $0)" | rev | cut -d'/' -f2- | rev)"
 
-  # Remove previous alias
-  if grep "^${_alias}" "$aliases" &>/dev/null; then
-    sed -i "/^${_alias}/d" "$aliases"
-    unalias docker-finance
-  fi
-
-  # Set new alias
-  echo "${_alias}'${_path}/client/docker.bash'" >>"$aliases"
+  # Install (or re-install) aliases
+  # NOTE: caller must `source` (as `unalias` and `alias` are in subshell)
+  for _a in "${_alias[@]}"; do
+    if grep "^alias ${_a}=" "$aliases" &>/dev/null; then
+      sed -i "/^alias ${_a}=/d" "$aliases"
+    fi
+    echo "alias ${_a}='${_path}/client/docker.bash'" >>"$aliases"
+  done
 
   # Set bash completion
   _completion="${_path}/client/src/docker/completion.bash"
@@ -57,7 +57,7 @@ else
       fi
     fi
     docker-finance::install \
-      && echo "SUCCESS: installation complete"
+      && echo "SUCCESS: installation complete" \
       || echo "FATAL: could not complete installation"
   else
     echo "FATAL: unsupported bash environment" >&2