zash.install


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post_install() {
  grep -qe '^/usr/bin/zash$' etc/shells || echo '/usr/bin/zash' >> etc/shells
  grep -qe '^/bin/zash$' etc/shells || echo '/bin/zash' >> etc/shells
}

post_upgrade() {
  post_install
}

pre_remove() {
  sed -ri -e '\|^/usr/bin/zash$|d' -e '\|^/bin/zash$|d' etc/shells
}