Answers Database

M1.4 EPIC - How to make use of history substitution on the EPIC command line.


Record #3476

Product Family:  Software

Product Line:  Merged Core

Problem Title:
M1.4 EPIC - How to make use of history substitution on the EPIC command
line.



Problem Description:
The EPIC command line functionality supports the use
of history substitution using a syntax similar to csh.


Solution 1:

Valid history operators are:
   !?	   - Give help on EPIC history substitution.
   !	   - Give a list of previous commands.
   !!	   - Retrieve the previous command.
   !*	   - Retrieve the 1st thru last words of the previous command.
   !^	   - Retrieve the first word of the previous command.
   !$	   - Retrieve the last	word of the previous command.
   !<num>  - Retrieve previous <num> command.
   !<txt>  - Retrieve the last command whose first word matches <txt>
   !?<txt> - Retrive the last command with any word matching <txt>
   !:<num> - Retrieve the <num>th word of the previous command.
   !:<n1>-<n2>
	   - Retrieve the <n1>th through <n2>th words of the prev cmd.
   !:s/<p1>/<p2>/g
	   - Substitute <p2> for <p1> on prev cmd.  The 'g' is
	     optional.	Use it to sub all matches of <p1>.  The pattern
	     separator char is whatever follows the '!:s'.  Hence
	     !:s#a#b# is legal

   NOTE:     The ':' colon operators may also be used in conjunction with
	     the '!<num>' and '!<txt>' operators.
	     Examples: '!110:s/a/xxx/' or '!select:s/signal1/signal2/'.



End of Record #3476