_existdir - UDM Built-in Variable
_existdir
The _existdir built-in variable holds the results of the existdir command.
The _existdir variable is cleared when the command is executed; after execution, _existdir can contain either of four values:
yes
The directory exists.no
Either the directory exists or the user does not have access rights.error
An operating system or file error occurred while checking the file's existence.null character
Initial state, directory existence has not been checked.
For example:
if $(_lastrc) EQ 0
echo "The command ran correctly."
else
echo "Check for error or warning messages."
end
echo ""
if <"$(_existdir)" EQ "yes">
echo "The directory exists."
end
if <"$(_existdir)" EQ "no">
echo "The directory does not exist."
end
if <"$(_existdir)" EQ "error">
echo "A file or system error occurred."
end
if <"$(_existdir)" EQ "">
echo "A command error occurred."
end