diff --git a/term.c b/term.c
index fddbeb5..ec4b2aa 100644
--- a/term.c
+++ b/term.c
@@ -1,18 +1,42 @@
+#include <pwd.h>
+#ifdef __APPLE__
+#include <util.h>
+#include <sys/ioctl.h>
+#else
 #include <pty.h>
+#endif
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <unistd.h>
 
 // compile with gcc term.c -lutil
 int main(int argc, char **argv) {
     if (argc < 2) {
-        printf("usage: %s ROM\n", argv[0]);
+        printf("usage: %s ROM [LOGIN]\n", argv[0]);
         return 1;
     }
     char *rom = argv[1]; // find term.rom
-    int fdm = -1; // allocate file descriptor
+    int login = argc > 2; // any extra arg signals login shell
+
+    // detect the user's shell
+    char *shell = getenv("SHELL");
+    if (shell == NULL) {
+        struct passwd *passwd = getpwuid(getuid());
+        if (passwd != NULL) {
+            shell = passwd->pw_shell;
+        }
+    }
+    if (shell == NULL) {
+        shell = "/bin/sh";
+    }
+
+    // find the shell's name
+    char *slash = strrchr(shell, '/');
+    char *name = slash == NULL ? shell : slash + 1;
 
     // allocate a pty, fork, inititialize file descriptor
+    int fdm = -1; // allocate file descriptor
     pid_t pid = forkpty(&fdm, NULL, NULL, NULL);
 
     if (pid < 0) { // failure
@@ -20,7 +44,12 @@ int main(int argc, char **argv) {
         return 1;
     } else if (pid == 0) { // child
         setenv("TERM", "ansi", 1);
-        execlp("bash", "bash", NULL); // exec bash
+        // execute shell
+        if (login) {
+            execlp(name, shell, "-l", "-i", NULL);
+        } else {
+            execlp(name, shell, NULL);
+        }
         perror("exec bash failed");
     } else { // parent
         struct winsize ws = {23, 80, 8, 12}; // rows, cols, xps, ypx
diff --git a/term.tal b/term.tal
index fb35b4d..0187aa8 100644
--- a/term.tal
+++ b/term.tal
@@ -377,6 +377,12 @@
     DUP LIT "9 GTH ?end-arg
     !add-to-arg
 
+@on-read-osc ( -> )
+    .Console/r DEI
+    DUP #07 ( bell  ) EQU ?&end-osc
+        #9c ( esc-\ ) EQU ?&end-osc BRK
+    &end-osc ;on-read .Console/vect DEO2 BRK
+
 @debug-arg ( n* -> )
     &short SWP debug-arg/byte
     &byte DUP #04 SFT debug-arg/char
@@ -612,6 +618,7 @@
 @on-read-esc ( -> )
     .Console/r DEI
     DUP LIT "[ EQU ?start-csi
+    DUP LIT "] EQU ?start-osc
     DUP LIT "( EQU ?start-charset
     DUP LIT ") EQU ?start-charset
     DUP LIT "7 EQU ?&skip ( save cursor )
@@ -635,6 +642,9 @@
 @start-csi ( c^ -> )
     POP reset-args ;on-read-csi .Console/vect DEO2 BRK
 
+@start-osc ( c^ -> )
+    POP reset-args ;on-read-osc .Console/vect DEO2 BRK
+
 @on-read ( -> )
     .Console/r DEI
     DUP ?&ok POP BRK