SHELL_NONE        218 lib/shell.c            mc_shell->type = SHELL_NONE;
SHELL_NONE        258 lib/shell.c            mc_shell->type = SHELL_NONE;
SHELL_NONE        280 lib/shell.c        if (mc_shell->type == SHELL_NONE)
SHELL_NONE        283 lib/shell.c        if (mc_shell->type == SHELL_NONE)
SHELL_NONE       1528 src/subshell/common.c         if (mc_global.shell->type == SHELL_NONE)