SHELL_NONE        193 lib/shell.c            mc_shell->type = SHELL_NONE;
SHELL_NONE        218 lib/shell.c            mc_shell->type = SHELL_NONE;
SHELL_NONE        243 lib/shell.c        if (mc_shell->type == SHELL_NONE)
SHELL_NONE        246 lib/shell.c        if (mc_shell->type == SHELL_NONE)
SHELL_NONE       1326 src/subshell/common.c         if (mc_global.shell->type == SHELL_NONE)