... In all these examples, we'll use the del1 macro discussed above to keep commands off the history list. ... First define a macro consisting of all the commands on the history list: del1 MACRO all 0 10000 will define the macro all to be history lines 0-10000. You need the del1 to avoid having the MACRO all 0 10000 in your macro). ... The trick of including a del1 in macros is pretty common, for example h is defined as del1 HELP so that it won't appear on the history list. ... Try the macro barhist . ...