pnminvert(1) General Commands Manual pnminvert(1)NAME
pnminvert - invert a portable anymap
SYNOPSIS
pnminvert [pnmfile]
DESCRIPTION
Reads a portable anymap as input. Inverts it black for white and produces a portable anymap as output.
SEE ALSO pnm(5)AUTHOR
Copyright (C) 1989 by Jef Poskanzer.
08 August 1989 pnminvert(1)
What is the point of this? Whenever I close my shell it appends to the history file without adding this. I have never seen it overwrite my history file.
# When the shell exits, append to the history file instead of overwriting it
shopt -s histappend (3 Replies)