[, aapt, ab: add Spanish translation (#5840)

* [: add Spanish translation

* aapt: add Spanish translation

* ab: add Spanish translation

pages/common/[.md

@@ -6,7 +6,7 @@
 
 - Test if a given variable is equal to a given string:
 
-`[ "{{$MY_VAR}}" == "{{/bin/zsh}}" ]`
+`[ "{{$VARIABLE}}" == "{{/bin/zsh}}" ]`
 
 - Test if a given variable is empty:
 
@@ -14,7 +14,7 @@
 
 - Test if a file exists:
 
-`[ -f "{{path/to/file_or_directory}}" ]`
+`[ -f "{{path/to/file}}" ]`
 
 - Test if a directory does not exist: