A utmp is responsible for keeping track of the users logged in to your system, and when you run a who command in your terminal, it retrieves login information from /var/run/utmp, then it displays on your screen.
Aconsoleis generally a terminal in the physical sense that is by some definition the primary terminal directly connected to a machine. The console appears to the operating system as a (kernel-implemented) tty. On some systems, such as Linux and FreeBSD, the console appears as several ttys (...
Whenever you do alogin,logout, orattempttolog in, everything gets recorded on your system, and there is a specific command that you can use to find outwho has logged into your Linux system. In this article, you will see abinaryfile that is responsible for maintaining records and how to...
Paul Krill is an editor at large at InfoWorld, focusing on coverage of application development (desktop and mobile) and core web technologies such as Java. More from this author news JetBrains updates Kotlin roadmap By Paul Krill Oct 29, 20242 mins ...
A shell is a “wrapper” for your Linux console or virtual terminal screen (when using SSH). Most users use the default Bourne Again Shell (or bash). It allows you to type in text, and it will act upon this input. For example, when you type in a command like ls, it sees this ...
Short for three-letter abbreviation or three-letter acronym, a TLA is any abbreviation with only three letters.Computer-related TLAsBelow are computer-related abbreviations and acronyms that are three letters.Note This list doesn't contain three character acronyms with numbers (e.g., 2FA (two-...
PID TTY STAT TIME COMMAND 8983 pts/10 Ss 0:00 /bin/bash 10428 pts/10 R+ 0:00 \_ ps --sid 8983 fw Dot . is an alias of source. So the only difference between two command are slash replaced by space. And a final test: $ printf %b '\43\41/bin/bash\necho Ending this.\...
the tty name the remote host login time idle time JCPU, PCPU time the command line of their current process. Here, JCPU time is the time used by all processes attached to the tty, and PCPU time is the time used by the current process, named in the "what" field. ...
In Mac one can list their serial ports using ls /dev/tty.* As per: https://stackoverflow.com/questions/3815211/mac-command-line-list-available-serial-ports But something that baffles me when I do this is that I see output for serial ports that are specific to the...
I can see right there that squid is the process, but it is actualy my squid-deb-proxy that is taking up the port. Another good example of a java app: $ lsof -i :4242 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME java 3075 root 86u IPv4 12019 0t0 TCP *:4242 (LISTEN) $...