10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
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
2. Shell Programming and Scripting
I am happily using constructs like the following; I have set -x to show fine distinctions.
$ exec 4> afile
+ 4> afile
$ print -u4 This is the first line in afileAs you can see from the -x expansion, the shell performed the exec command and redirected file descriptor to... (4 Replies)
Discussion started by: rpaskudniak
3. Shell Programming and Scripting
I am trying to read a file line-by-line in a while loop, and perform some tasks which involves non-interactive SSH to a remote server. The code looks something like this --
while read line
## Adding the SSH... (2 Replies)
Discussion started by: Subu1987
4. Shell Programming and Scripting
I am trying to write a script which will only show me the file descriptor count for a process/pid. My script will return me the count only not the whole output. For example, I would like my script to return the output 23 this case, not the whole output.
Can anybody please help me how do I get... (11 Replies)
Discussion started by: mohullah
5. UNIX for Dummies Questions & Answers
What the below path contains?
/proc/<pid>/fd (1 Reply)
Discussion started by: siba.s.nayak
6. Shell Programming and Scripting
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
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
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 )
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
9. 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
10. UNIX for Dummies Questions & Answers
Ok, I'm sure this is a total newbie question, but I think I'm in the right place, no?
I'm trying to call a perl module from a cgi script - Mail::Sendmail - and my web host installed the module in a directory that doesn't seem to be accessible, at least not the way I'm trying. But I thought you... (1 Reply)
Discussion started by: ftb