make "lstat FH" croak

[p5sagit/p5-mst-13.2.git] / pod / perlrun.pod

diff --git a/pod/perlrun.pod b/pod/perlrun.pod
index 4b86d77..7c56788 100644 (file)
--- a/pod/perlrun.pod
+++ b/pod/perlrun.pod
@@ -4,7 +4,7 @@ perlrun - how to execute the Perl interpreter
 
 =head1 SYNOPSIS
 
-B<perl>        S<[ B<-CsTuUWX> ]>
+B<perl>        S<[ B<-CsTtuUWX> ]>
        S<[ B<-hv> ] [ B<-V>[:I<configvar>] ]>
        S<[ B<-cw> ] [ B<-d>[:I<debugger>] ] [ B<-D>[I<number/list>] ]>
        S<[ B<-pna> ] [ B<-F>I<pattern> ] [ B<-l>[I<octal>] ] [ B<-0>[I<octal>] ]>
@@ -301,9 +301,11 @@ See L<perldebug>.
 sets debugging flags.  To watch how it executes your program, use
 B<-Dtls>.  (This works only if debugging is compiled into your
 Perl.)  Another nice value is B<-Dx>, which lists your compiled
-syntax tree.  And B<-Dr> displays compiled regular expressions. As an
-alternative, specify a number instead of list of letters (e.g., B<-D14> is
-equivalent to B<-Dtls>):
+syntax tree.  And B<-Dr> displays compiled regular expressions;
+the format of the output is explained in L<perldebguts>. 
+
+As an alternative, specify a number instead of list of letters (e.g.,
+B<-D14> is equivalent to B<-Dtls>):
 
         1  p  Tokenizing and parsing
         2  s  Stack snapshots
@@ -334,6 +336,9 @@ If you're just trying to get a print out of each line of Perl code
 as it executes, the way that C<sh -x> provides for shell scripts,
 you can't use Perl's B<-D> switch.  Instead do this 
 
+  # If you have "env" utility
+  env=PERLDB_OPTS="NonStop=1 AutoTrace=1 frame=2" perl -dS program
+
   # Bourne shell syntax
   $ PERLDB_OPTS="NonStop=1 AutoTrace=1 frame=2" perl -dS program
 
@@ -697,6 +702,17 @@ separators, it will first be searched for in the current directory
 before being searched for on the PATH.  On Unix platforms, the
 program will be searched for strictly on the PATH.
 
+=item B<-t>
+
+Like B<-T>, but taint checks will issue warnings rather than fatal
+errors.  These warnings can be controlled normally with C<no warnings
+qw(taint)>.
+
+B<NOTE: this is not a substitute for -T.> This is meant only to be
+used as a temporary development aid while securing legacy code:
+for real production code and for new secure code written from scratch
+always use the real B<-T>.
+
 =item B<-T>
 
 forces "taint" checks to be turned on so you can test them.  Ordinarily
@@ -829,7 +845,7 @@ The program should instead say:
 =item PERL5OPT
 
 Command-line options (switches).  Switches in this variable are taken
-as if they were on every Perl command line.  Only the B<-[DIMUdmw]>
+as if they were on every Perl command line.  Only the B<-[DIMUdmtw]>
 switches are allowed.  When running taint checks (because the program
 was running setuid or setgid, or the B<-T> switch was used), this
 variable is ignored.  If PERL5OPT begins with B<-T>, tainting will be