As far as I can see both tmpin and tmpout are both open immediately prior to the fork and hence will be both be open for both parent and child.
A suggestion, whenever you close a file descriptor, put -1 in the variable holding it. Then put in some debugging code immediately after the fork as follows...
I have a simple script that I want to run every 30 minutes but only when I execute it. I don't want it to be a crontab job.
so i have for example
date
ls -l
who
sleep 1800
The first time it executes correctly but after the first time it nevers execute back again. It should execute after... (2 Replies)
Anyone have an idea why this if statement does not work correctly?
"test2.sh" 18 lines, 386 characters
#!/usr/bin/sh
WARNING=80
CRITICAL=95
check_it()
{
if ] || ];then
echo "YES ] || ]"
else
echo "NO ] || ]"
fi
}
check_it 80.1
check_it 81.1 (3 Replies)
Hi,
I have a script where I am trying to set a local variable using the following,
MYVAR="$NAME"_"$NAME2".txt
where say,
NAME = one
NAME2 = two
so I want the output one_two.txt but what I am getting is,
two.txt
basically the $NAME2 is overwriting, what am I doing wrong?
... (3 Replies)
egrep -A 7 -m 2 -h 'Date:|Time:' *.html
this is showing only 2 line after the context of the 2nd found match. Is this a bug in grep?
egrep -A 7 -m 2 -h 'Time:' *.html - this works correctly (2 Replies)
I am trying to copy 2 types of files so I can archive them. I tested with a set of commands:
touch -t $(date -d "-60 day" +%Y%m%d) WORKDIR/REF
find TARGETDIR/ -type f -maxdepth 1 -iname \*.out\* -or -iname \*.log\* ! -newer WORKDIR/REF -exec ls -l {} \;
This correctly lists any files in the... (2 Replies)
We are using Red Hat linux system.
I am transferring my rman backup files to another server.
Here is the command i am using to transfer the files.
/usr/bin/rsync -avpP --delete /xyz/xyz/ 99.99.999.99::db110bkp
Here is the rsync version.
>rsync --version
rsync version 3.0.6 ... (1 Reply)
Consider the following code:
grep -o -e '^STEAM_::\d+$' workfile3.tmp
A sample format of a valid string for the regexp would be:
STEAM_0:1:12345678
Here is an example line from the workfile3.tmp file:
465:L 01/02/2012 - 00:05:33: "Spartan1-1-7<8><STEAM_0:1:47539638><>" connected
No... (2 Replies)
Hi
I am attempting to right a script which will read a table and extract specfic information.
LASTFAILEDJOB=/usr/openv/netbackup/scripts/GB-LDN/Junaid/temp_files/lastfailedjob
cat /usr/openv/netbackup/scripts/GB-LDN/Junaid/temp_files/lastfailedjob
237308646
If i run the following... (5 Replies)
Hello All,
Yesterday, all day, I was using x11vnc and vncviewer to connect to a server. But today for some reason it is not working. I don't
remember changing any settings or anything like that, but because it stopped working correctly I guess something has...?
I'm issuing the exact same... (0 Replies)
Today I saw the topic. sum-even-numbers-1-100 At that time, it was already closed but not the point. Other thoughts came to mind.
All newcomers to Haskell are afraid that when they study it, their brains will turn inside out. I did not notice anything like that. And all because the brains of all... (4 Replies)
Discussion started by: nezabudka
4 Replies
LEARN ABOUT DEBIAN
getppid
GETPID(2) BSD System Calls Manual GETPID(2)NAME
getpid, getppid -- get parent or calling process identification
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <sys/types.h>
#include <unistd.h>
pid_t
getpid(void);
pid_t
getppid(void);
DESCRIPTION
The getpid() system call returns the process ID of the calling process. Though the ID is guaranteed to be unique, it should NOT be used for
constructing temporary file names, for security reasons; see mkstemp(3) instead.
The getppid() system call returns the process ID of the parent of the calling process.
ERRORS
The getpid() and getppid() system calls are always successful, and no return value is reserved to indicate an error.
SEE ALSO fork(2), getpgrp(2), kill(2), setpgid(2), setsid(2), exec(3)STANDARDS
The getpid() and getppid() system calls are expected to conform to ISO/IEC 9945-1:1990 (``POSIX.1'').
HISTORY
The getpid() function appeared in Version 7 AT&T UNIX.
BSD November 2, 2006 BSD