Sponsored Content
Top Forums Shell Programming and Scripting How to make sure that sub shells have finished before moving on? Post 302845059 by DGPickett on Tuesday 20th of August 2013 04:32:47 PM
Old 08-20-2013
No! All the children inside () for all generations inherit stdout and stderr from (), and when the last of them exists, the pipe into cat gets EOF and cat terminates. Nothing has to be written (but centralized logging is good). None of the commands inside () has to redirect stdout or stderr to get their errors logged, so the scripts are shorter, far less cluttered.
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Finding Out When A Process Has Finished?

Problem I have an application which basically runs lots of UNIX programs remotely, using the Telnet protocol. For each program it remotely executes, it stores the process ID (PID) for that process. At regular intervals, I would like my application to take the PID for every process still... (5 Replies)
Discussion started by: 1cuervo
5 Replies

2. UNIX for Dummies Questions & Answers

Has my script finished?

Hi I'm writing a script which will be run by cron every X minutes. I don't want cron to run my script again if the previous one has not yet finished. When the script first runs, I had the idea to store the Process ID in a file. When cron tries to run the script again, I would check the... (5 Replies)
Discussion started by: Bab00shka
5 Replies

3. Shell Programming and Scripting

** Finished ** Syncid.rc

So, the script I've been working on, since I was starting to learn Shell scripting is now complete. This was coded in ksh, and I am very proud of it. What this script does, is syncs up uid's across the network. So if you have 10 servers, with 10 usernames with different UID's - this will... (1 Reply)
Discussion started by: syndex
1 Replies

4. Shell Programming and Scripting

How can I trigger another make command when one is finished?

Hello all I have to run manually make commands in our system the make compilations task's takes very long And I like to be able to run another make task right after one is finished. What is the best way to automate it ? (2 Replies)
Discussion started by: umen
2 Replies

5. Shell Programming and Scripting

How to know a executable has finished his task

Hi frnds, I want to know is there a way by which we can know that a C++ executable has finished its job in shell script. My task is as follows: 1.Shell script calls a executable 2.Executable executes and performs its job of generating some reports. Now i want my shell script to... (4 Replies)
Discussion started by: electroon
4 Replies

6. Shell Programming and Scripting

How do I know all processes are finished?

Hi all, I am writing a C shell script that starts a program. The program forks of several child processes. Only when all child processes are done, I want to archive my log files. Below is what I have so far, but unfortunately it doesn't work. MyProgram if (-e processes.txt) then rm... (2 Replies)
Discussion started by: Carla
2 Replies

7. UNIX for Advanced & Expert Users

how to make a parent wait on a child shells running in background?

Hi I have a shell script A which calls another 10 shell scripts which run in background. How do i make the parent script wait for the child scripts complete, or in other words, i must be able to do a grep of parent script to find out if the child scripts are still running. My Code: ... (1 Reply)
Discussion started by: albertashish
1 Replies

8. Programming

How can I tell when recv is finished with pending data?

I'm working with recv and I am having a heck of a lot of trouble ignoring excess data that I did not ask for. I was hoping someone could shine some light on the subject for me because I'm not getting anywhere fast. ---------- Post updated at 02:46 AM ---------- Previous update was at 12:31 AM... (2 Replies)
Discussion started by: Errigour
2 Replies

9. Shell Programming and Scripting

how to proceed when curl is finished

I have a script which uses cli curl to download the source code of a webpage and then tests if a specific string exists in the source. The problem is that the website has a slow response, so the eval expression hasn't completed when the test starts. The test returns a negative, and the curl... (8 Replies)
Discussion started by: locoroco
8 Replies

10. Shell Programming and Scripting

Wait until firefox has finished

I am running a macro script from the command line. But the script doesn't wait until the task has finished. firefox imacros://run/?m=macro_script.iim firefox imacros://run/?m=macro_script2.iim How do I get it to wait until the macro has been completed? I am using imacros, a firefox... (1 Reply)
Discussion started by: locoroco
1 Replies
All times are GMT -4. The time now is 10:04 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy