10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
Cannot present unpresented disks back again. On a test server tried this as a solution "multipath -r" and it worked. Too worried to try it in production before I know all the information.
Any info would be appreciated!
Also some links to the documentation on this specific issue could help a... (1 Reply)
Discussion started by: jsteppe
1 Replies
2. Shell Programming and Scripting
Hi,
I am currently writing a perl module that will be passed queries from other scripts and use DBI to execute them on an Oracle Database. The problem I have is when it comes to the return.
I am currently getting this from my code:
FIELDA FIELDB FIELDC ... (6 Replies)
Discussion started by: chris01010
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3. Shell Programming and Scripting
I'm filling in a table of values for grades. I decided to go with reading into a hash from the files but I'm coming up with an error when printing a value that does not exist. I need to know if I can on-the-fly print a space (" ") or blank in place of the grade.
Here's what the output should... (2 Replies)
Discussion started by: D2K
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4. Shell Programming and Scripting
Hello,
There's a third-party application's command that shows the application's status like "tail -f verybusy.log". When use the command, the output comes every 1-sec. but when it goes in a script below the output comes every 8-sec...What is the problem and how can I fix it?
open(CMD,... (2 Replies)
Discussion started by: Shawn, Lee
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5. Shell Programming and Scripting
Hello!!!
I'm trying to pass the output from bash command to perl variable in a perl script, and I used the "system" command to execute the bash statment and pass the result to perl string variable, in this perl script I used a variable $file that store data for using it as a regular expression.... (2 Replies)
Discussion started by: evolabo
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6. Shell Programming and Scripting
Hi everybody;
I try to code a script perl to list all services that are active "ON" with a chkconfig -- list
the problem is that code list all services which are active or not.
#!/usr/bin/perl
use strict;
use warnings;
open(FILE,"-|") || exec "chkconfig --list |grep ON";... (2 Replies)
Discussion started by: bassma
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7. Shell Programming and Scripting
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
Discussion started by: shis100
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8. Shell Programming and Scripting
Let's say I want to write a program that run these 4 UNIX commands and redirect output to a file.
#!/usr/local/bin/perl
use strict;
`cd \$HOME > output.txt`;
`cut -f1 inputfile.txt >> output.txt`;
`hostname >> output.txt`;
`ifconfig >> output.txt`;
I want to print a "carriage return"... (5 Replies)
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9. Shell Programming and Scripting
in "cmd" command i want to copy the ouput of the command excuted to a particular file in a directory.
How to do this..??
Ex : $telnet->cmd(String => 'allip:acl=a1;',Prompt => '/</');
i want to copy o/p of the command "allip:acl=a1;" in a log file in a particular directory.
Plz suggest.. (1 Reply)
Discussion started by: sudhakaryadav
1 Replies
10. Shell Programming and Scripting
i am using perl in win2000advanced server...
---------------------------
perl -version:
---------------------------
This is perl, v5.6.1 built for MSWin32-x86-multi-thread
(with 1 registered patch, see perl -V for more detail)
Copyright 1987-2001, Larry Wall
Binary build 638 provided by... (1 Reply)
Discussion started by: sekar sundaram
1 Replies
PCNTL_WAIT(3) 1 PCNTL_WAIT(3)
pcntl_wait - Waits on or returns the status of a forked child
SYNOPSIS
int pcntl_wait (int &$status, [int $options])
DESCRIPTION
The wait function suspends execution of the current process until a child has exited, or until a signal is delivered whose action is to
terminate the current process or to call a signal handling function. If a child has already exited by the time of the call (a so-called
"zombie" process), the function returns immediately. Any system resources used by the child are freed. Please see your system's wait(2) man
page for specific details as to how wait works on your system.
Note
This function is equivalent to calling pcntl_waitpid(3) with a -1$pid and no $options.
PARAMETERS
o $status
-pcntl_wait(3) will store status information in the $status parameter which can be evaluated using the following functions:
pcntl_wifexited(3), pcntl_wifstopped(3), pcntl_wifsignaled(3), pcntl_wexitstatus(3), pcntl_wtermsig(3) and pcntl_wstopsig(3).
o $options
- If wait3 is available on your system (mostly BSD-style systems), you can provide the optional $options parameter. If this param-
eter is not provided, wait will be used for the system call. If wait3 is not available, providing a value for $options
will have no effect. The value of $options
is the value of zero or more of the following two constants OR'ed together:
Possible values for $options
+----------+---------------------------------------------------+
| | |
| WNOHANG | |
| | |
| | Return immediately if no child has exited. |
| | |
| | |
|WUNTRACED | |
| | |
| | Return for children which are stopped, and whose |
| | status has not been reported. |
| | |
+----------+---------------------------------------------------+
RETURN VALUES
pcntl_wait(3) returns the process ID of the child which exited, -1 on error or zero if WNOHANG was provided as an option (on wait3-avail-
able systems) and no child was available.
SEE ALSO
pcntl_fork(3), pcntl_signal(3), pcntl_wifexited(3), pcntl_wifstopped(3), pcntl_wifsignaled(3), pcntl_wexitstatus(3), pcntl_wtermsig(3),
pcntl_wstopsig(3), pcntl_waitpid(3).
PHP Documentation Group PCNTL_WAIT(3)
