[Solved] Perl, Deep recursion? exit() ignored? Post: 302889200

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

PERL: Trapping EXIT

Hey Everyone, Just starting with PERL (5.8.2) after years of KSH. Is there a way to trap the exit as you can in KSH (i.e., "trap EXIT_SCRIPT EXIT")? Thanks in advance for any help, gsatch

2. Shell Programming and Scripting

I am running a korn shell script which has a recursive function. The script ran for 117 iterations and ended up with the following error "recursion too deep". what should be done to avert this? Thanks in advance Swamy p.s. I am on UNIX MPRAS V4

3. Shell Programming and Scripting

How to get exit status codes in bash from Perl?

I apologize if I have already posted this query. I scanned back quite a few pages but could not find such a query. If my perl code contains "exit(33)" how can I get that value in bash for use in a "if" statement. Thanks, Siegfried

4. Shell Programming and Scripting

exit ststus 9 from perl system command

HI all, can anyone tell me what does exit status 9 from perl's system function meant. I am using system fuction to execute a shell script as : my $s=system ('script.sh' ,arg1 ,arg2); print $s; the output is 9. Thanks in advance. !!:confused:

5. Shell Programming and Scripting

Perl | catching the letter 'Q' for exit.

Hi all, I made a simple script with a prompt menu in Perl. All working good, but I want to add an option while the program is running that on every time when the user press 'Q' the program will exit. I know I can use $SIG{'INT'} or any other %SIG option. This option is a unix signal which I...

6. HP-UX

[Solved] ssh debug1: Exit status 254 problem

Hello; Am experiencing odd problem with ssh: ========= ssh -vvv remote_host : : debug2: channel 0: rcvd adjust 65536 debug2: channel_input_status_confirm: type 99 id 0 debug2: shell request accepted on channel 0 debug1: client_input_channel_req: channel 0 rtype exit-status reply 0...

7. UNIX for Dummies Questions & Answers

[Solved] Simple while loop does not exit

spath="/home/user/k/${1}" dpath="/home/user/seq/Nov17/${1}" cd $dpath ls -1 $spath > list c=1 while read list newlist=`echo $list | sed 's/.gz//' ` newnewlist=`echo $newlist | sed 's/.fastq//' ` do echo $c echo $list c=$(($c+1))

8. Shell Programming and Scripting

Perl Question Grep and exit status

Im being forced to write in perl. I prefer KSH or Expect, so I suppose its time to become more fluent with perl. I have the following problem. I want to loop through Filea and check that each line in Filea is resident in Fileb. Filea contents two four six eight houseboat Fileb...

9. Shell Programming and Scripting

[Solved] Rsh does not close connection on exit

Dear all, We have a service that we start up remotely with rsh but unfortunately, the rsh never returns to the calling server. This seems to be because the processes of the service we've just started hold the port open.RBATTE1 @ /home/RBATTE1>netstat -na|grep 49.51 tcp4 0 0 ...

10. Programming

Perl: trap signal 'exit': why I am not able to have it work??

First time trying to work with signals in Perl. Reviewing example I try it, but not able to get it work for 'exit'. I hope, I am correct, assuming, that the ending any code by exit $return_code; the $SIG{EXIT} should be de-referenced and processed?! So, I have such code, that, I assume,...

LEARN ABOUT MINIX

pnmpsnr

pnmpsnr(1)                                                    General Commands Manual                                                   pnmpsnr(1)

NAME

       pnmpsnr - compute the difference between two portable anymaps

SYNOPSIS

       pnmpsnr [pnmfile1] [pnmfile2]

DESCRIPTION

       Reads  two  PBM,  PGM, or PPM files, or PAM equivalents, as input.  Prints the peak signal-to-noise ratio (PSNR) difference between the two
       images.  This metric is typically used in image compression papers to rate the distortion between original and decoded image.

       If the inputs are PBM or PGM, pnmpsnr prints the PSNR of the luminance only.  Otherwise, it prints the separate PSNRs of the luminance, and
       chrominance (Cb and Cr) components of the colors.

       The  PSNR  of  a  given component is the ratio of the mean square difference of the component for the two images to the maximum mean square
       difference that can exist betwee any two images.  It is expressed as a decibel value.

       The mean square difference of a component for two images is the mean square difference of the component value, comparing  each  pixel  with
       the pixel in the same position of the other image.  For the purposes of this computation, components are normalized to the scale [0..1].

       The maximum mean square difference is identically 1.

       So the higher the PSNR, the closer the images are.  A luminance PSNR of 20 means the mean square difference of the luminances of the pixels
       is 100 times less than the maximum possible difference, i.e. 0.01.

SEE ALSO

       pnm(5)

                                                                   04 March 2001                                                        pnmpsnr(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

PERL: Trapping EXIT

Discussion started by: gsatch

2. Shell Programming and Scripting

recursion too deep

Discussion started by: swamy455

3. Shell Programming and Scripting

How to get exit status codes in bash from Perl?

Discussion started by: siegfried

4. Shell Programming and Scripting

exit ststus 9 from perl system command

Discussion started by: glamo_2312