Sponsored Content
Top Forums Shell Programming and Scripting Multiple co-processor file descriptors Post 64825 by vgersh99 on Wednesday 2nd of March 2005 02:10:29 PM
Old 03-02-2005
Code:
#!/bin/ksh

x=TESTVAR2

eval export "${x}_stdout=3"

print $TESTVAR2_stdout

# results in print $TESTVAR2_stdout
eval "print \$${x}_stdout"

 

10 More Discussions You Might Find Interesting

1. Programming

File Descriptors

Hi, I have written a daemon process, to perform certain operations in the background. For this I have to close, the open file descriptors, Does anybody know how to find out the number of open file descriptors ? Thanks in Advance, Sheetal (2 Replies)
Discussion started by: s_chordia
2 Replies

2. UNIX for Advanced & Expert Users

File Descriptors

Hello all, A few questions on file descriptors ... scenario : Sun Ultra 30 with Sun OS 5.5.1 , E250 with Solaris 2.6 In one of my servers, the file descriptor status from the soft limit and hard limits are 64 and 1024 respectively for root user. Is the soft limit (64) represents the... (3 Replies)
Discussion started by: shibz
3 Replies

3. UNIX for Dummies Questions & Answers

file descriptors

i m trying to learn processes in unix and i've been reading this but i don't quite get it. its regarding file descriptors. : each is a part of file pointers, they point to another area. indexes into an Operating system maintained table called "file descriptor table". one table per process. may... (3 Replies)
Discussion started by: a25khan
3 Replies

4. Programming

Sockets and File descriptors

I am in a Systems programming class this semester, and our current project is to write a program utilizing sockets and fork. For the project, I decided to make my own instant messaging program. I have the code completed, but I have a problem that keeps old clients from communicating with new... (3 Replies)
Discussion started by: gstlouis
3 Replies

5. UNIX for Advanced & Expert Users

File descriptors missing on startup

Dec 20 15:34:32 hostname sendmail: File descriptors missing on startup: stderr; Bad file number Dec 20 15:34:32 hostname sendmail: File descriptors missing on startup: stderr; Bad file number Dec 20 15:34:32 hostname sendmail: File descriptors missing on startup: stderr; Bad file number Dec... (1 Reply)
Discussion started by: xnightcrawl
1 Replies

6. UNIX for Advanced & Expert Users

File Descriptors + cron

Hi All, This thread is going to be a discussion basically bringing out more information from the experts on cron jobs and the associated file handles. So, here is the question. There is definitely a constant ' n ' as the maximum number of file handles alloted to a process ' p '. Will... (7 Replies)
Discussion started by: matrixmadhan
7 Replies

7. UNIX for Dummies Questions & Answers

Write/read to file descriptors

Is it possible to write to file descriptor 0 and read from 1 or 2? How could this be implemented? (3 Replies)
Discussion started by: machshev
3 Replies

8. HP-UX

exec and file descriptors

Hi, I speak and write english more or less, so I hope my asking be clear. :) In the company I am working, they are using control-m software to lunch shell scripts. So i put this command in all shell scripts: export LOGFILE_tmp=$PRODUC_DATA/tmp/${SCRIPT}_${PAIS}_`date... (0 Replies)
Discussion started by: anamcara
0 Replies

9. UNIX for Dummies Questions & Answers

Semaphores and File Descriptors

What is the difference between a file descriptor and a semaphore? My basic understanding is: - a file descriptor is a small positive integer that the system uses instead of the file name to identify an open file or socket. - a semaphore is a variable with a value that indicates the... (1 Reply)
Discussion started by: Mr_Webster
1 Replies

10. Shell Programming and Scripting

Questions about file descriptors

Hi, I'm playing with KSH I entered following command in terminal { echo "stdout" >&1; echo "stderr" >&2; } > out And I get only stoud in a new file out. My question is: Where did my stderr vanish ? (5 Replies)
Discussion started by: solaris_user
5 Replies
PERLIVP(1)						 Perl Programmers Reference Guide						PERLIVP(1)

NAME
perlivp - Perl Installation Verification Procedure SYNOPSIS
perlivp [-p] [-v] [-h] DESCRIPTION
The perlivp program is set up at Perl source code build time to test the Perl version it was built under. It can be used after running: make install (or your platform's equivalent procedure) to verify that perl and its libraries have been installed correctly. A correct installation is verified by output that looks like: ok 1 ok 2 etc. OPTIONS
-h help Prints out a brief help message. -p print preface Gives a description of each test prior to performing it. -v verbose Gives more detailed information about each test, after it has been performed. Note that any failed tests ought to print out some extra information whether or not -v is thrown. DIAGNOSTICS
o print "# Perl binary '$perlpath' does not appear executable. "; Likely to occur for a perl binary that was not properly installed. Correct by conducting a proper installation. o print "# Perl version '$]' installed, expected $ivp_VERSION. "; Likely to occur for a perl that was not properly installed. Correct by conducting a proper installation. o print "# Perl @INC directory '$_' does not appear to exist. "; Likely to occur for a perl library tree that was not properly installed. Correct by conducting a proper installation. o print "# Needed module '$_' does not appear to be properly installed. "; One of the two modules that is used by perlivp was not present in the installation. This is a serious error since it adversely affects perlivp's ability to function. You may be able to correct this by performing a proper perl installation. o print "# Required module '$_' does not appear to be properly installed. "; An attempt to "eval "require $module"" failed, even though the list of extensions indicated that it should succeed. Correct by conducting a proper installation. o print "# Unnecessary module 'bLuRfle' appears to be installed. "; This test not coming out ok could indicate that you have in fact installed a bLuRfle.pm module or that the "eval " require "$module_name.pm"; "" test may give misleading results with your installation of perl. If yours is the latter case then please let the author know. o print "# file",+($#missing == 0) ? '' : 's'," missing from installation: "; One or more files turned up missing according to a run of "ExtUtils::Installed -> validate()" over your installation. Correct by conducting a proper installation. For further information on how to conduct a proper installation consult the INSTALL file that comes with the perl source and the README file for your platform. AUTHOR
Peter Prymmer perl v5.16.2 2013-08-25 PERLIVP(1)
All times are GMT -4. The time now is 11:17 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy