@ -739,6 +739,10 @@ execsh(void) {
char **args;
char *envshell = getenv("SHELL");
unsetenv("COLUMNS");
unsetenv("LINES");
unsetenv("TERMCAP");
DEFAULT(envshell, SHELL);
putenv("TERM="TNAME);
args = opt_cmd ? opt_cmd : (char*[]){envshell, "-i", NULL};