usr_share_grml/zsh/functions/minimal-shell

   1 # spawn a minimally set up mksh - useful if you want to umount /usr/.
   2 emulate -L zsh
   3
   4 local shell="/bin/mksh"
   5 local env_file="/etc/minimal-shellrc"
   6
   7 if [[ ! -x ${shell} ]]; then
   8     printf '`%s'\'' not available, giving up.\n' ${shell} >&2
   9     return 1
  10 elif [[ ! -f ${env_file} ]]; then
  11     printf 'minimal-shell: Configuration missing: `%s'\''\n' ${shell} >&2
  12     return 2
  13 fi
  14
  15 exec env -i ENV="$env_file" HOME="$HOME" TERM="$TERM" ${shell}