1. UNIX for Dummies Questions & Answers

I have a parent that is passing data to child A and then child A has to process it and pass to child B. I am able to pass the data to child A but am not able to pass it to child B. Child B seems to only be receiving the last data instead of the whole data. I saw one example in a book but it uses... (1 Reply)

2. UNIX for Advanced & Expert Users

Hi All, I am facing a vague issue while trying to make two process talk to each other using named pipe. read process ========= The process which reads, basically creates FIFO using mkfifo - ret_val = mkfifo(HALF_DUPLEX, 0666);) func. It then opens the pipe using open func - fd =... (1 Reply)

3. Programming

Hi All, I am facing a vague issue while trying to make two process talk to each other using named pipe. read process ========= The process which reads, basically creates FIFO using mkfifo - ret_val = mkfifo(HALF_DUPLEX, 0666) func. It then opens the pipe using open func - fd = open... (2 Replies)

4. Solaris

I was asked to look into a problem with a Sun Netra 440 in another department. On the server in question, the relevant 'uname -a' information is, "SunOS host1 5.9 Generic_118558-16 sun4u sparc SUNW,Netra-440". That information aside, while the other admin is logged into the ALOM, these errors are... (0 Replies)

5. Programming

Hi! I wanted to know the advantages / disadvantages of different IPC mechanims such as sockets, pipes (unnamed) , shared memory & message queues. Pipes for example i hear are fast , but are difficult to debug as compared to sockets. Can you guys please name some situations where one is... (4 Replies)

6. Shell Programming and Scripting

Hi All , Is there any way to replace the pipe ( | ) with the broken pipe (0xA6) in unix (1 Reply)

7. Programming

Suppose I have 5 independent process divided in two imaginay sets: set1 set2 --------------------- p1 p3 | | p2 p4 | p5 The processes inside each set communicate mutually quite often. I mean p1 and p2 communicate mutually quite often Similarly p3, p4 and p5 communicate mutually... (2 Replies)

8. HP-UX

Hi Experts, Need your help for checking te interprocess communications settings on HP-UX box. Using ipcs command I am able to view Message queue,semapohores etc, but from that output I m not able to understand how to determine if there is any issue with ipc settings and how to resolve that? (1 Reply)

9. Programming

I'm currently studying IPC, I have a first program A: Do an exec for B and wait B: Receive through a fifo a string from a third program "C" and have to resend it to A I was thinking to open a pipe in A before the exec, then passing fd to B as an argument if(pipe(fd)==-1){ ... (1 Reply)

10. Shell Programming and Scripting

Hi guys, I need to know how i can ignore Pipe '|' if Pipe is coming as a column in Pipe delimited file for eg: file 1: xx|yy|"xyz|zzz"|zzz|12... using below awk command awk 'BEGIN {FS=OFS="|" } print $3 i would get xyz But i want as : xyz|zzz to consider as whole column... (13 Replies)