LASTERROR -- Environmental Variable

Program that last generated an error
LASTERROR=program name

The  environmental  variable  LASTERROR  names  the  last program  to  have
returned an error  to the shell.  For example, if  you had used the command
set with an incorrect number of  arguments, it would have failed to run and
would  have  exited  with an  error  condition,  and  LASTERROR would  read
LASTERROR=set.

The command help reads LASTERROR to determine what the last program was for
which you needed help.  Thus, if you type help without an argument, it will
return information about the program named in LASTERROR.

See Also

environmental variables

© 2012 by Stephen A. Ness