parallel: Fixed: csh length before base64 quoting too high.

doc/release_new_version

@@ -236,7 +236,7 @@ New in this release:
 
 * --fifo now works in csh, too.
 
-* <<afventer opdatering>> CIDER: a pipeline for detecting waves of coordinated transcriptional regulation in gene expression time-course data http://biorxiv.org/content/biorxiv/early/2015/03/17/012518.full.pdf
+* GNU Parallel was cited in: DockBench: An Integrated Informatic Platform Bridging the Gap between the Robust Validation of Docking Protocols and Virtual Screening Simulations http://www.mdpi.com/1420-3049/20/6/9977
 
 * <<Har angiveligt submittet ny version - afventer opdatering>> GNU Parallel was used (unfortunately without citation) in: MUGBAS: a species free gene-based programme suite for post-GWAS analysis http://www.ncbi.nlm.nih.gov/pubmed/25765345
 

src/parallel

@@ -3221,7 +3221,7 @@ sub killall {
     # Wait up to 200 ms between each
 
     $Global::start_no_new_jobs ||= 1;
-    $Global::killall = 1;
+    $Global::killall ||= 1;
     # pids of the all children and (grand*)children
     # before we start the blood bath
     my @family_pids = family_pids(keys %Global::running);
@@ -6800,7 +6800,8 @@ sub sshlogin_wrap {
 	    my $remote_command = $pwd.$envset.$bashfuncset.
 		'@ARGV="'.::perl_quote_scalar($command).'";'. monitor_parent_sshd_script();
 	    $quoted_remote_command = "perl -e ".::shell_quote_scalar($remote_command);
-	    if(length $quoted_remote_command > 999
+	    my $dq_remote_command = ::shell_quote_scalar($quoted_remote_command);
+	    if(length $dq_remote_command > 999
 	       or
 	       not $csh_friendly
 	       or
@@ -6810,7 +6811,7 @@ sub sshlogin_wrap {
 		$quoted_remote_command = "perl -e \\''".base64_zip_eval()."'\\' ".
 		    join" ",string_zip_base64($remote_command);
 	    } else {
-		$quoted_remote_command = ::shell_quote_scalar($quoted_remote_command);
+		$quoted_remote_command = $dq_remote_command;
 	    }
 
 	    my $sshcmd = $sshlogin->sshcommand();

src/parallel_design.pod

@@ -469,6 +469,29 @@ a Perl script in `` or using B<system> if called as a single string.
 
 While these cover most cases, there are situations where it will fail:
 
+=over 2
+
+=item *
+
+When run using B<exec>.
+
+=item *
+
+When run as the last command using B<-c> from another shell (because
+some shells use B<exec>):
+
+  zsh% bash -c "parallel 'echo {} is not run in bash; set | grep BASH_VERSION' ::: This"
+
+You can work around that by appending '&& true':
+
+  zsh% bash -c "parallel 'echo {} is run in bash; set | grep BASH_VERSION' ::: This && true"
+
+=item *
+
+When run in a Perl script using B<system> with parallel as the first
+string:
+
+
   #!/usr/bin/perl
 
   system("parallel",'setenv a {}; echo $a',":::",2);
@@ -478,17 +501,24 @@ Perl script is called from B<tcsh> it will work just fine, but if it
 is called from B<bash> it will fail, because the command B<setenv> is
 not known to B<bash>.
 
+=back
+
 
 =head2 Quoting
 
-Quoting is kept simple: Use \ for all special chars and ' for
-newline. Whether a char is special depends on the shell and the
-context. Luckily quoting a bit too many does not break things.
+Quoting depends on the shell. For most shells \ is used for all
+special chars and ' is used for newline. Whether a char is special
+depends on the shell and the context. Luckily quoting a bit too many
+chars does not break things.
 
 It is fast, but had the distinct disadvantage that if a string needs
 to be quoted multiple times, the \'s double every time - increasing
 the string length exponentially.
 
+For B<tcsh>/B<csh> newline is quoted as \ followed by newline.
+
+For B<rc> everything is quoted using '.
+
 
 =head2 --pipepart vs. --pipe