dotfiles/aliases at main · ckujau/dotfiles · GitHub

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#
# ~/.aliases
#

# Better safe than sorry
alias mv='mv -i'
alias cp='cp -i'
alias rm='rm -i'

#
# Our beloved GREP_OPTIONS were deprecated and now we have this.
#
# grep: make GREP_OPTIONS obsolescent
# https://cgit.git.savannah.gnu.org/cgit/grep.git/commit/?id=50d843674e5df9f5d0111f07bbff8ce07c19df6a
#
# GREP_OPTIONS alternative?
# https://debbugs.gnu.org/cgi/bugreport.cgi?bug=19998
#
case "$(uname -s)" in
	NetBSD)
	#
	# In NetBSD, /usr/bin/grep is actually an old GNU/grep version
	# which treats stdin as a device and thus skips it when --devices=skip is
	# set. Instead of convincing the NetBSD maintainers to switch to BSD/grep
	# we can just use the statically linked version in /rescue for now.
	# See:
	# Re: [netbsd-users] Re: How to build /usr/bin/grep?
	# https://mail-index.netbsd.org/netbsd-users/2023/08/18/msg030044.html
	#
	grep --version 2>/dev/null | grep -Eq 'GNU|BSD' || return
	alias  grep='/rescue/grep  --color=auto --devices=skip'
	alias zgrep='/rescue/zgrep --color=auto --devices=skip'
	;;

	SunOS)
	#
	# Only the GNU/grep versions will understand these options.
	#
	ggrep --version 2>/dev/null | ggrep -Eq 'GNU|BSD' || return
	alias   ggrep='ggrep  --color=auto --devices=skip'
	alias  gzgrep='gzgrep --color=auto --devices=skip'
	;;

	*)
	# Everything else should be able to do the following:
	grep --version 2>/dev/null | grep -Eq 'GNU|BSD' || return
	alias     grep='grep     --color=auto --devices=skip'
	alias    zgrep='zgrep    --color=auto --devices=skip'
	alias   bzgrep='bzgrep   --color=auto --devices=skip'
	alias   xzgrep='xzgrep   --color=auto --devices=skip'
	alias zstdgrep='zstdgrep --color=auto --devices=skip'
esac