Use & (ampersand) in single line bash loop
I have been using this command successfully, which changes a variable in a config file and then executes a Python script within a loop:
process
Redirect a file descriptor before execution
I know that I can change the file a program writes to by interrupting the process in gdb, closing using the file descriptor and then re-opening with the file name I want. Is there a way to do the same thing at run time?
Why does process substitution result in a file called /dev/fd/63 which is a pipe?
I am trying to understand named pipes in the context of this particular example.
Difference between process group and job?
What’s the difference between a process group and a job? If I type pr * | lpr then is it both a process group as well a job?
What exactly is the difference between a process group ID and a job ID?
How can I kill a process and be sure the PID hasn’t been reused
Suppose, for example, you have a shell script similar to:
change /proc/PID/environ after process start
$ k=v p & [1] 3028 is there any way for p to change the contents of /proc/3028/environ to not mention k=v while p is still running? Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them … Read more
Are threads implemented as processes on Linux?
I’m going through this book, Advanced Linux Programming by Mark Mitchell, Jeffrey Oldham, and Alex Samuel. It’s from 2001, so a bit old. But I find it quite good anyhow.
How to make reading and writing the same file in the same pipeline always “fail”?
Say I have the following script:
Process with weird random name consuming significant network and CPU resources. Is someone hacking me?
In a VM on a cloud provider, I’m seeing a process with weird random name. It consumes significant network and CPU resources.
How can I get the pid of a subshell?
How can I get the pid of a subshell?