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What motivates HISTCONTROL=ignorespace ?

From: Jon Seymour
Subject: What motivates HISTCONTROL=ignorespace ?
Date: Sat, 6 Feb 2010 22:38:43 +1100

I too was unaware of the HISTCONTROL option, but now that I know what
it does, I am intrigued by the rationale for HISTCONTROL=ignorespace?
In other words, what motivated the inclusion of handling for this
option specifically?

Is it to allow users who may have reason to type sensitive commands a
trivial means to suppress such commands from their command history?
Or, is it motivated by some other use case where suppressing commands
with a leading space is useful? What is that use case?



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