Index: src/shell.c
==================================================================
--- src/shell.c
+++ src/shell.c
@@ -1578,11 +1578,11 @@
   "                         LIKE pattern TABLE.\n"
   ".echo ON|OFF           Turn command echo on or off\n"
   ".exit                  Exit this program\n"
   ".explain ?ON|OFF?      Turn output mode suitable for EXPLAIN on or off.\n"
   "                         With no args, it turns EXPLAIN on.\n"
-  ".header(s) ON|OFF      Turn display of headers on or off\n"
+  ".headers ON|OFF        Turn display of headers on or off\n"
   ".help                  Show this message\n"
   ".import FILE TABLE     Import data from FILE into TABLE\n"
   ".indices ?TABLE?       Show names of all indices\n"
   "                         If TABLE specified, only show indices for tables\n"
   "                         matching LIKE pattern TABLE.\n"
@@ -1614,19 +1614,22 @@
   ".save FILE             Write in-memory database into FILE\n"
   ".schema ?TABLE?        Show the CREATE statements\n"
   "                         If TABLE specified, only show tables matching\n"
   "                         LIKE pattern TABLE.\n"
   ".separator STRING      Change separator used by output mode and .import\n"
+  ".shell CMD ARGS...     Run CMD ARGS... in a system shell\n"
   ".show                  Show the current values for various settings\n"
   ".stats ON|OFF          Turn stats on or off\n"
+  ".system CMD ARGS...    Run CMD ARGS... in a system shell\n"
   ".tables ?TABLE?        List names of tables\n"
   "                         If TABLE specified, only list tables matching\n"
   "                         LIKE pattern TABLE.\n"
   ".timeout MS            Try opening locked tables for MS milliseconds\n"
   ".trace FILE|off        Output each SQL statement as it is run\n"
   ".vfsname ?AUX?         Print the name of the VFS stack\n"
   ".width NUM1 NUM2 ...   Set column widths for \"column\" mode\n"
+  "                         Negative values right-justify\n"
 ;
 
 static char zTimerHelp[] =
   ".timer ON|OFF          Turn the CPU timer measurement on or off\n"
 ;
@@ -2897,10 +2900,24 @@
 
   if( c=='s' && strncmp(azArg[0], "separator", n)==0 && nArg==2 ){
     sqlite3_snprintf(sizeof(p->separator), p->separator,
                      "%.*s", (int)sizeof(p->separator)-1, azArg[1]);
   }else
+
+  if( c=='s'
+   && (strncmp(azArg[0], "shell", n)==0 || strncmp(azArg[0],"system",n)==0)
+   && nArg>=2
+  ){
+    char *zCmd;
+    int i;
+    zCmd = sqlite3_mprintf("\"%s\"", azArg[1]);
+    for(i=2; i<nArg; i++){
+      zCmd = sqlite3_mprintf("%z \"%s\"", zCmd, azArg[i]);
+    }
+    system(zCmd);
+    sqlite3_free(zCmd);
+  }else
 
   if( c=='s' && strncmp(azArg[0], "show", n)==0 && nArg==1 ){
     int i;
     fprintf(p->out,"%9.9s: %s\n","echo", p->echoOn ? "on" : "off");
     fprintf(p->out,"%9.9s: %s\n","eqp", p->autoEQP ? "on" : "off");