I need to remove files older than 3 days with a cron job in 3 different directories. (these 3 directories are children of a parent directory /a/b/c/1 & /a/b/c/2 & /a/b/c/3) Can this be done with one line in the crontab?
I know how to create an empty file:
I’m tuning the nofile value in /etc/security/limits.conf for my oracle user and I have a question about its behavior: does nofile limit the total number of files the user can have open for all of its processes or does it limit the total number of files the user can have open for each of its processes?
Let’s say I have a 4 GB file abc on my local computer. I have uploaded it to a distant server via SFTP, it took a few hours.
I have an application that reads a file. Let’s call it processname and the file ~/.configuration. When processname runs it always reads ~/.configuration and can’t be configured differently. There are also other applications that rely on “~/.configuration”, before and after, but not while processname is running.
I have a script that works with /etc/NetworkManager:
“Everything is a file” in the UNIX World.
I would like to download some files from my server into my laptop, and the thing is that I want this communication to be as stealth and secure as it can be. So, far I came up using VPN, in that way I redirect the whole internet traffic of my laptop via my server. Additionally, I tried to send a file using ftp and observing Wireshark at the same time. The communication seems to be encrypted, however I would like also to encrypt the file itself (as a 2nd step security or something like that).
In the context of operating system control tables, does the term “file tables” refer to a data structure that is part of the filesystem, or that is in main memory (and in which case I assume it would only have references to open files)? My textbook1 says,
Here it says that you can rewrite an executable file and the process will run just fine – it will be re-read when a process restarts.