10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
hello,
Someone can help me with redirectors?
I am writing this script in bash enviroment on Fedora:
exec 4<> /dev/tcp/10.10.11.30/5000 #open socket in input/output
strings<&4 >file.txt &
I send file descriptor 4 to string command to purge data stream from special char while come from... (3 Replies)
Discussion started by: rattoeur
3 Replies
2. Shell Programming and Scripting
I have a script that is inventorying (not sure if thats a word) my environment.
It goes out and pulls Hostname OS, IP, and ENV (dev, prod, etc)..then spits all that to a logfile
At the top of my script i have a check to see if the logfile exist.
] || touch $LOGFILE && echo "ENV" "\t"... (3 Replies)
Discussion started by: nitrobass24
3 Replies
3. Shell Programming and Scripting
What awk command will test a string to determine if it is a valid file name?
With the following awk statement I isolate the lines from the inputfile that might contain a filename, then I attempt to test the possible filename which is always in $4 from each line. However it is not working at all... (4 Replies)
Discussion started by: Arsenalman
4 Replies
4. Shell Programming and Scripting
My process creates file like
abc.20090427.txt i.e abc.date.txt
next time when my process it has to detect if any previous "abc" exist.
If exist then move to archive and create a new abc file.
I am using test command but it doesnt allow wild card.
if ]
then
mv abc.*.txt... (7 Replies)
Discussion started by: pinnacle
7 Replies
5. UNIX for Dummies Questions & Answers
Hi
What the below path contains?
/proc/<pid>/fd (1 Reply)
Discussion started by: siba.s.nayak
1 Replies
6. Shell Programming and Scripting
Hello All,
Im opening a file desciptor in perl and sending data using print CMD "$xyz".
is there a limit to the length of the string that I can give to this CMD at a time. (3 Replies)
Discussion started by: rimser9
3 Replies
7. UNIX for Advanced & Expert Users
Im working on writing a small operating system. I am currently working on implementing dup, dup2, pipe, and close and I need to implement some type of file descriptor table in my PCB.
I was wondering if there is anyone who is familiar with linux/unix implementation of these tables who could... (6 Replies)
Discussion started by: Ashaman0
6 Replies
8. Programming
I have a requirement to close all the file descriptors from 3 to 1024 for a particular application.
Right now, this is how I do it ..
for ( int i = 3 ; i <= 1024; ++i )
close(i);
The change I am looking at is, I want to do away with the number 1024 and replace it with a constant which... (4 Replies)
Discussion started by: vino
4 Replies
9. UNIX for Dummies Questions & Answers
What is a file descriptor in Unix??
How to find a file descriptor of a file in Unix??
Does it have anything to do with the Inode numbers?? (3 Replies)
Discussion started by: rahulrathod
3 Replies
10. UNIX for Dummies Questions & Answers
I am trying to find a way to check the current status of a file. Such as some cron job processes are dependent on the completion of others. if a file is currently being accessed / modified or simply open state I will wait until it is done being processed before attempting the next process on that... (3 Replies)
Discussion started by: Gary Dunn
3 Replies