1
vote
0answers
62 views

Which process is occupying a certain pseudo terminal pts/X?

On Linux: Normally pseudo terminals are allocated one after the other. Today I realized that even after a reboot of my laptop the first opened terminal window (which was always pts/0 earlier) ...
1
vote
4answers
3k views

Show running processes with file name(s)?

I am using putty to connect my linux server which my sites are in. I can run # ps aux | less to show running processes. But I want to display which files running these processes ? I have also ...
2
votes
1answer
291 views

How can I access a deleted open file on Linux (output of a running crontab task)?

I have an hourly hour-long crontab job running with some mtr (traceroute) output every 10 minutes (that is going to go for over an hour prior to it being emailed back to me), and I want to see the ...
2
votes
1answer
133 views

Max Open Files, clarification needed

On my machine, ulimit -n returns 2560 Given that -n returns The maximum number of open file descriptors. Does it mean that system won't allow more then 2560 open files to be out there at any ...
2
votes
2answers
940 views

File delete versus overwrite and link at /proc/pid/fd

It is well known that UNIX systems won't actually delete a file on disk while the file is in use. So if a file is being accessed by process 1 and process 2 deletes the file using rm, process 1 ...
4
votes
2answers
3k views

File descriptor linked to socket or pipe in proc [duplicate]

Possible Duplicate: /proc/PID/fd/X link number i have a question regarding the file descriptors and their linkage in the proc file system. I've observed that if i list the file descriptors ...
9
votes
2answers
2k views

How to find out the file offset of an opened file?

My problem is that with lsof -p pid I can find out the list of opened file of a process whose process id is pid. But is there a way to find out the file offset of each accessed file ? Please give me ...
5
votes
2answers
481 views

Recover deleted file that is currently being written to

I started downloading a big file and accidently deleted it a while ago. I know how to get its current contents by cping /proc/<pid>/fd/<fd> but since the download is still in progress ...
5
votes
2answers
3k views

How to find out which file is currently written by a process

My situation is that from time to time a specific process (in this case, it's Thunderbird) doesn't react to user input for a minute or so. I found out using iotop that during this time, it writes ...
3
votes
2answers
365 views

Capturing new output after deleting the output file

I'm runnig a java server on Debian with this command: java -jar myapp.jar [args] >> log.txt Once I gzipped the log file to send it and then I realized the original file was gone, leaving me ...
9
votes
2answers
2k views

What happens when I close() a file descriptor?

I am trying to get the whole picture with file descriptors. Say I have process1 which initially has these file descriptors: _process1_ | | | 0 stdin | | 1 stdout | | 2 stderr | ...
5
votes
0answers
97 views

How can different file descriptors point to the same file in open file table? [duplicate]

Possible Duplicate: How can same fd in different processes point to the same file? I have a hard time grasping the two ideas of File Descriptor Table and Open File Table. Open File Table ...
13
votes
2answers
5k views

/proc/PID/fd/X link number

In Linux, in /proc/PID/fd/X, the links for file descriptors that are pipes or sockets have a number, like: l-wx------ 1 user user 64 Mar 24 00:05 1 -> pipe:[6839] l-wx------ 1 user user 64 Mar 24 ...