Ripped from Fedora

--- bash-3.0/builtins/ulimit.def
+++ bash-3.0/builtins/ulimit.def
@@ -34,15 +34,20 @@
     -a	all current limits are reported
     -c	the maximum size of core files created
     -d	the maximum size of a process's data segment
+    -e	the maximum scheduling priority (`nice')
     -f	the maximum size of files created by the shell
+    -i	the maximum number of pending signals
     -l	the maximum size a process may lock into memory
     -m	the maximum resident set size
     -n	the maximum number of open file descriptors
     -p	the pipe buffer size
+    -q	the maximum number of bytes in POSIX message queues
+    -r	the maximum rt priority
     -s	the maximum stack size
     -t	the maximum amount of cpu time in seconds
     -u	the maximum number of user processes
     -v	the size of virtual memory 
+    -x	the maximum number of file locks
 
 If LIMIT is given, it is the new value of the specified resource;
 the special LIMIT values `soft', `hard', and `unlimited' stand for
@@ -199,7 +204,13 @@
 #ifdef RLIMIT_DATA
   { 'd',	RLIMIT_DATA,  1024,	"data seg size",	"kbytes" },
 #endif
+#ifdef RLIMIT_NICE
+  { 'e',	RLIMIT_NICE, 1,		"max nice",		(char *)NULL},
+#endif /* RLIMIT_NICE */
   { 'f',	RLIMIT_FILESIZE, 1024,	"file size",		"blocks" },
+#ifdef RLIMIT_SIGPENDING
+  { 'i',	RLIMIT_SIGPENDING, 1,	"pending signals",	(char *)NULL},
+#endif
 #ifdef RLIMIT_MEMLOCK
   { 'l',	RLIMIT_MEMLOCK, 1024,	"max locked memory",	"kbytes" },
 #endif
@@ -208,6 +219,12 @@
 #endif /* RLIMIT_RSS */
   { 'n',	RLIMIT_OPENFILES, 1,	"open files",		(char *)NULL},
   { 'p',	RLIMIT_PIPESIZE, 512,	"pipe size", 		"512 bytes" },
+#ifdef RLIMIT_MSGQUEUE
+  { 'q',	RLIMIT_MSGQUEUE, 1,	"POSIX message queues",	"bytes" },
+#endif
+#ifdef RLIMIT_RTPRIO
+  { 'r',	RLIMIT_RTPRIO, 1,	"max rt priority",	(char *)NULL},
+#endif /* RLIMIT_RTPRIO */
 #ifdef RLIMIT_STACK
   { 's',	RLIMIT_STACK, 1024,	"stack size",		"kbytes" },
 #endif
@@ -221,6 +238,9 @@
 #ifdef RLIMIT_SWAP
   { 'w',	RLIMIT_SWAP,	1024,	"swap size",		"kbytes" },
 #endif
+#ifdef RLIMIT_LOCKS
+  { 'x',	RLIMIT_LOCKS, 1,	"file locks",		(char *)NULL},
+#endif
   { -1, -1, -1, (char *)NULL, (char *)NULL }
 };
 #define NCMDS	(sizeof(limits) / sizeof(limits[0]))
@@ -647,11 +667,11 @@
 
   for (i = 0; limits[i].option > 0; i++)
     {
-      if (get_limit (i, &softlim, &hardlim) < 0)
+      if (get_limit (i, &softlim, &hardlim) == 0)
+	printone (i, (mode & LIMIT_SOFT) ? softlim : hardlim, 1);
+      else if (errno != EINVAL)
 	builtin_error ("%s: cannot get limit: %s", limits[i].description,
 						   strerror (errno));
-      else
-	printone (i, (mode & LIMIT_SOFT) ? softlim : hardlim, 1);
     }
 }
 
@@ -670,7 +690,7 @@
       else
         sprintf (unitstr, "(-%c) ", limits[limind].option);
 
-      printf ("%-18s %16s", limits[limind].description, unitstr);
+      printf ("%-20s %16s", limits[limind].description, unitstr);
     }
   if (curlim == RLIM_INFINITY)
     puts ("unlimited");
--- bash-3.0/doc/bashref.texi
+++ bash-3.0/doc/bashref.texi
@@ -3793,7 +3793,7 @@
 @item ulimit
 @btindex ulimit
 @example
-ulimit [-acdflmnpstuvSH] [@var{limit}]
+ulimit [-acdeflmnpqrstuvxSH] [@var{limit}]
 @end example
 @code{ulimit} provides control over the resources available to processes
 started by the shell, on systems that allow such control.  If an
@@ -3814,9 +3814,15 @@
 @item -d
 The maximum size of a process's data segment.
 
+@item -e
+The maximum scheduling priority.
+
 @item -f
 The maximum size of files created by the shell.
 
+@item -i
+The maximum number of pending signals.
+
 @item -l
 The maximum size that may be locked into memory.
 
@@ -3829,6 +3835,12 @@
 @item -p
 The pipe buffer size.
 
+@item -q
+The maximum number of bytes in POSIX message queues.
+
+@item -r
+The maximum RT priority.
+
 @item -s
 The maximum stack size.
 
@@ -3841,6 +3853,9 @@
 @item -v
 The maximum amount of virtual memory available to the process.
 
+@item -x
+The maximum amount of file locks.
+
 @end table
 
 If @var{limit} is given, it is the new value of the specified resource;
--- bash-3.0/doc/bash.1
+++ bash-3.0/doc/bash.1
@@ -8362,7 +8362,7 @@
 returns true if any of the arguments are found, false if
 none are found.
 .TP
-\fBulimit\fP [\fB\-SHacdflmnpstuv\fP [\fIlimit\fP]]
+\fBulimit\fP [\fB\-SHacdefilmnpqrstuvx\fP [\fIlimit\fP]]
 Provides control over the resources available to the shell and to
 processes started by it, on systems that allow such control.
 The \fB\-H\fP and \fB\-S\fP options specify that the hard or soft limit is
@@ -8398,9 +8398,15 @@
 .B \-d
 The maximum size of a process's data segment
 .TP
+.B \-e
+The maximum scheduling priority (`nice')
+.TP
 .B \-f
 The maximum size of files created by the shell
 .TP
+.B \-i
+The maximum number of pending signals
+.TP
 .B \-l
 The maximum size that may be locked into memory
 .TP
@@ -8414,6 +8420,12 @@
 .B \-p
 The pipe size in 512-byte blocks (this may not be set)
 .TP
+.B \-q
+The maximum number of bytes in POSIX message queues
+.TP
+.B \-r
+The maximum rt priority
+.TP
 .B \-s
 The maximum stack size
 .TP
@@ -8425,6 +8437,9 @@
 .TP
 .B \-v
 The maximum amount of virtual memory available to the shell
+.TP
+.B \-x
+The maximum number of file locks
 .PD
 .PP
 If