diff --git a/.travis.yml b/.travis.yml
index 4db3e3d..948b523 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -47,5 +47,5 @@ script:
   - ruby test/completion.rb
   - fish test/wrapper.fish
   - fish test/reinitialize.fish
-  - bash -c "source ${HOME}/.sdkman/bin/sdkman-init.sh && sdk install crash 1.3.0 && sdk uninstall crash 1.3.0" && fish test/10_zombies_new.fish
-  - bash -c "rm -rf ~/.sdkman &&  sed -i 's/^.*\(sdkman\|SDKMAN\).*$//g' ~/.bashrc && echo 'SDKMAN uninstalled'" && fish -c "echo 'y' | sdk" && fish -c "sdk version"
+  - bash -c "source \"${HOME}/.sdkman/bin/sdkman-init.sh\" && sdk install crash 1.3.0 && sdk uninstall crash 1.3.0" && fish test/10_zombies_new.fish
+  - bash -c "rm -rf \"${HOME}/.sdkman\" &&  sed -i 's/^.*\(sdkman\|SDKMAN\).*$//g' \"${HOME}/.bashrc\" && echo 'SDKMAN uninstalled'" && fish -c "echo 'y' | sdk" && fish -c "sdk version"
diff --git a/completions/sdk.fish b/completions/sdk.fish
index 4a9cd13..bd8b602 100644
--- a/completions/sdk.fish
+++ b/completions/sdk.fish
@@ -6,7 +6,7 @@
 
 # Guard: SDKMAN! needs to be installed
 if not test -f "$HOME/.sdkman/bin/sdkman-init.sh"
-  exit 0
+    exit 0
 end
 
 # # # # # #
@@ -14,45 +14,45 @@ end
 # # # # # #
 
 # Test if there is no command
-function __fish_sdkman_no_command 
-  set cmd (commandline -opc)
+function __fish_sdkman_no_command
+    set cmd (commandline -opc)
 
-  if [ (count $cmd) -eq 1 ]
-    return 0
-  end
-  return 1
+    if [ (count $cmd) -eq 1 ]
+        return 0
+    end
+    return 1
 end
 
 # Test if the main command matches one of the parameters
 function __fish_sdkman_using_command
-  set cmd (commandline -opc)
+    set cmd (commandline -opc)
 
-  if [ (count $cmd) -eq 2 ]
-    if  contains $cmd[2] $argv 
-      return 0
+    if [ (count $cmd) -eq 2 ]
+        if  contains $cmd[2] $argv
+        return 0
+        end
     end
-  end
-  return 1
+    return 1
 end
 
 function __fish_sdkman_specifying_candidate
-  set cmd (commandline -opc)
+    set cmd (commandline -opc)
 
-  if [ (count $cmd) -eq 3 ] # currently, sdk does not support multiple versions
-    if contains $cmd[2] $argv ]
-      return 0
+    if [ (count $cmd) -eq 3 ] # currently, sdk does not support multiple versions
+        if contains $cmd[2] $argv ]
+        return 0
+        end
     end
-  end
-  return 1
+    return 1
 end
 
 function __fish_sdkman_command_has_enough_parameters
-  set cmd (commandline -opc)
-  
-  if [ (count $cmd) -ge (math $argv[1] + 2) ]; and contains $cmd[2] $argv[2..-1] 
-    return 0
-  end
-  return 1
+    set cmd (commandline -opc)
+
+    if [ (count $cmd) -ge (math $argv[1] + 2) ]; and contains $cmd[2] $argv[2..-1]
+        return 0
+    end
+    return 1
 end
 
 # # # # # #
@@ -60,22 +60,22 @@ end
 # # # # # #
 
 function __fish_sdkman_candidates
-  cat "$HOME"/.sdkman/var/candidates | tr ',' '\n'
+    cat "$HOME"/.sdkman/var/candidates | tr ',' '\n'
 end
 
 function __fish_sdkman_candidates_with_versions
-  set regexpHome (string replace -a '/' '\\/' "$HOME/")
-  find "$HOME"/.sdkman/candidates/ -name '*current*' -printf "%h\n" \
-  | sed -e "s/$regexpHome//" \
-  | cut -d '/' -f 3 \
-  | sort -u
+    set regexpHome (string replace -a '/' '\\/' "$HOME/")
+
+    find "$HOME"/.sdkman/candidates/ -mindepth 2 -maxdepth 2 -name '*current' \
+    | awk -F '/' '{ print $(NF-1) }' \
+    | sort -u
 end
 
 function __fish_sdkman_installed_versions
-  set cmd (commandline -opc)
-  if [ -d "$HOME"/.sdkman/candidates/$cmd[3]/current ]
-    ls -v1 "$HOME"/.sdkman/candidates/$cmd[3] | grep -v current
-  end
+    set cmd (commandline -opc)
+    if [ -d "$HOME"/.sdkman/candidates/$cmd[3]/current ]
+        ls -v1 "$HOME"/.sdkman/candidates/$cmd[3] | grep -v current
+    end
 end
 
 # # # # # #
@@ -87,26 +87,26 @@ complete -c sdk -f -n '__fish_sdkman_no_command' \
     -a 'i install' \
     -d 'Install new version'
 complete -c sdk -f -n '__fish_sdkman_using_command i install' \
-        -a "(__fish_sdkman_candidates)"  
+        -a "(__fish_sdkman_candidates)"
 complete -c sdk -f -n '__fish_sdkman_specifying_candidate i install' \
             # TODO complete available versions --> #4
             -a 'a.b.c' \
-            -d "version list unavailable" 
+            -d "version list unavailable"
 complete -c sdk -f -n '__fish_sdkman_specifying_candidate i install' \
             -a 'x.y.z' \
-            -d "Add your own; specify path!" 
+            -d "Add your own; specify path!"
                 # Implicit: complete files as fourth parameter
-complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 3 i install' 
+complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 3 i install'
                     # block
 
 # uninstall
 complete -c sdk -f -n '__fish_sdkman_no_command' \
     -a 'rm uninstall' -d 'Uninstall version'
 complete -c sdk -f -n '__fish_sdkman_using_command rm uninstall' \
-        -a "(__fish_sdkman_candidates_with_versions)"  
+        -a "(__fish_sdkman_candidates_with_versions)"
 complete -c sdk -f -n '__fish_sdkman_specifying_candidate rm uninstall' \
-            -a "(__fish_sdkman_installed_versions)" 
-complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 2 rm uninstall' 
+            -a "(__fish_sdkman_installed_versions)"
+complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 2 rm uninstall'
                 # block
 
 # list
@@ -114,19 +114,19 @@ complete -c sdk -f -n '__fish_sdkman_no_command' \
     -a 'ls list' \
     -d 'List versions'
 complete -c sdk -f -n '__fish_sdkman_using_command ls list' \
-        -a "(__fish_sdkman_candidates)"  
-complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 1 ls list' 
-            # block 
+        -a "(__fish_sdkman_candidates)"
+complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 1 ls list'
+            # block
 
 # use
 complete -c sdk -f -n '__fish_sdkman_no_command' \
     -a 'u use' \
     -d 'Use specific version'
 complete -c sdk -f -n '__fish_sdkman_using_command u use' \
-        -a "(__fish_sdkman_candidates_with_versions)"  
+        -a "(__fish_sdkman_candidates_with_versions)"
 complete -c sdk -f -n '__fish_sdkman_specifying_candidate u use' \
-            -a "(__fish_sdkman_installed_versions)" 
-complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 2 u use' 
+            -a "(__fish_sdkman_installed_versions)"
+complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 2 u use'
                 # block
 
 # default
@@ -134,10 +134,10 @@ complete -c sdk -f -n '__fish_sdkman_no_command' \
     -a 'd default' \
     -d 'Set default version'
 complete -c sdk -f -n '__fish_sdkman_using_command d default' \
-        -a "(__fish_sdkman_candidates_with_versions)"  
+        -a "(__fish_sdkman_candidates_with_versions)"
 complete -c sdk -f -n '__fish_sdkman_specifying_candidate d default' \
-            -a "(__fish_sdkman_installed_versions)" 
-complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 2 d default' 
+            -a "(__fish_sdkman_installed_versions)"
+complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 2 d default'
                 # block
 
 # current
@@ -145,8 +145,8 @@ complete -c sdk -f -n '__fish_sdkman_no_command' \
     -a 'c current' \
     -d 'Display current version'
 complete -c sdk -f -n '__fish_sdkman_using_command c current' \
-        -a "(__fish_sdkman_candidates)"  
-complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 1 c current' 
+        -a "(__fish_sdkman_candidates)"
+complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 1 c current'
             # block
 
 # upgrade
@@ -154,29 +154,29 @@ complete -c sdk -f -n '__fish_sdkman_no_command' \
     -a 'ug upgrade' \
     -d 'Display what is outdated'
 complete -c sdk -f -n '__fish_sdkman_using_command ug upgrade' \
-        -a "(__fish_sdkman_candidates_with_versions)" 
-complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 1 ug upgrade' 
+        -a "(__fish_sdkman_candidates_with_versions)"
+complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 1 ug upgrade'
             # block
 
 # version
 complete -c sdk -f -n '__fish_sdkman_no_command' \
     -a 'v version' \
     -d 'Display version'
-complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 0 v version' 
+complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 0 v version'
         # block
 
 # broadcast
 complete -c sdk -f -n '__fish_sdkman_no_command' \
     -a 'b broadcast' \
     -d 'Display broadcast message'
-complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 0 b broadcast' 
+complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 0 b broadcast'
         # block
 
 # help
 complete -c sdk -f -n '__fish_sdkman_no_command' \
     -a 'h help' \
     -d 'Display help message'
-complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 0 h help' 
+complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 0 h help'
         # block
 
 # offline
@@ -189,7 +189,7 @@ complete -c sdk -f -n '__fish_sdkman_using_command offline' \
 complete -c sdk -f -n '__fish_sdkman_using_command offline' \
         -a 'disable' \
         -d 'Turn on all features'
-complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 1 offline' 
+complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 1 offline'
             # block
 
 # selfupdate
@@ -199,14 +199,14 @@ complete -c sdk -f -n '__fish_sdkman_no_command' \
 complete -c sdk -f -n '__fish_sdkman_using_command selfupdate' \
         -a 'force' \
         -d 'Force re-install of current version'
-complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 1 selfupdate' 
+complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 1 selfupdate'
             # block
 
 # update
 complete -c sdk -f -n '__fish_sdkman_no_command' \
     -a 'update' \
     -d 'Reload the candidate list'
-complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 0 update' 
+complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 0 update'
         # block
 
 # flush
@@ -222,5 +222,5 @@ complete -c sdk -f -n '__fish_sdkman_using_command flush' \
 complete -c sdk -f -n '__fish_sdkman_using_command flush' \
         -a 'temp' \
         -d 'Clear installation prep folder'
-complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 1 flush' 
+complete -c sdk -f -n '__fish_sdkman_command_has_enough_parameters 1 flush'
             # block