Here is from my Ubuntu$ ls /dev/*tty*/dev/tty    /dev/tty17  /dev/tty26  /dev/tty35  /dev/tty44  /dev/tty53  /dev/tty62      /dev/ttyS12  /dev/ttyS21  /dev/ttyS30/dev/tty0   /dev/tty18  /dev/tty27  /dev/tty36  /dev/tty45  /dev/tty54  /dev/tty63      /dev/ttyS13  /dev/ttyS22  /dev/ttyS31/dev/tty1   /dev/tty19  /dev/tty28  /dev/tty37  /dev/tty46  /dev/tty55  /dev/tty7       /dev/ttyS14  /dev/ttyS23  /dev/ttyS4/dev/tty10  /dev/tty2   /dev/tty29  /dev/tty38  /dev/tty47  /dev/tty56  /dev/tty8       /dev/ttyS15  /dev/ttyS24  /dev/ttyS5/dev/tty11  /dev/tty20  /dev/tty3   /dev/tty39  /dev/tty48  /dev/tty57  /dev/tty9       /dev/ttyS16  /dev/ttyS25  /dev/ttyS6/dev/tty12  /dev/tty21  /dev/tty30  /dev/tty4   /dev/tty49  /dev/tty58  /dev/ttyprintk  /dev/ttyS17  /dev/ttyS26  /dev/ttyS7/dev/tty13  /dev/tty22  /dev/tty31  /dev/tty40  /dev/tty5   /dev/tty59  /dev/ttyS0      /dev/ttyS18  /dev/ttyS27  /dev/ttyS8/dev/tty14  /dev/tty23  /dev/tty32  /dev/tty41  /dev/tty50  /dev/tty6   /dev/ttyS1      /dev/ttyS19  /dev/ttyS28  /dev/ttyS9/dev/tty15  /dev/tty24  /dev/tty33  /dev/tty42  /dev/tty51  /dev/tty60  /dev/ttyS10     /dev/ttyS2   /dev/ttyS29/dev/tty16  /dev/tty25  /dev/tty34  /dev/tty43  /dev/tty52  /dev/tty61  /dev/ttyS11     /dev/ttyS20  /dev/ttyS3I  have 7 virtual consoles.I have also opened some tabs inside gnome terminal, and several emacs (some running shell, but I have probably closed them all), and screen sessions (but now closed).what is the difference between /dev/tty, /dev/tty[[:digit:]]+,/dev/ttyprintk, and /dev/ttyS[[:digit:]]+?How can I find out which device each tty file corresponds to?Some said the device files for pseudo tty is /dev/pty, but why is    there  no pty file or dir here:$ ls /dev/*pty*ls: cannot access /dev/*pty*: No such file or directoryNot sure what /dev/*pts* means:$ ls /dev/*pts* 0  1  10  11  12  13  14  15  16  17  18  2  20  21  22  23  24  26  3  4  5  6  7  8  9  ptmxThanks and regards!
look up the device from its tty file?
devices;tty