文章目录
- 一、命令 `who or w` 可以显示有哪些终端登录
- 二、命令 `who am i` 用来显示当前终端是哪一个
- 三、命令 `tty` 显示当前终端的设备文件
- 四、命令 `chvt` 用来切换虚拟终端
- 五、命令 `last` 显示每个终端的登录时间和持续时间等信息
- 六、命令 `toe -a` 列出系统支持的所有终端类型
- 七、命令infocmp来比较两个终端的区别
一、命令 who or w 可以显示有哪些终端登录
[root@htlwk0001host ~]# w17:37:33 up 425 days, 7:35, 4 users, load average: 0.00, 0.01, 0.00
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
root tty1 - 238月20 153days 0.01s 0.01s -bash
root pts/0 112.50.131.179 09:55 1.00s 0.02s 0.00s w
root tty3 - 022月21 261days 0.48s 0.48s -bash
root tty2 - 022月21 261days 0.01s 0.01s -bash
[root@htlwk0001host ~]# who
root tty1 2020-08-23 10:20
root pts/0 2021-10-22 09:55 (112.50.131.179)
root tty3 2021-02-02 18:08
root tty2 2021-02-02 21:01
二、命令 who am i 用来显示当前终端是哪一个
[root@htlwk0001host ~]# who am i
root pts/0 2021-10-22 09:55 (112.50.131.179)
三、命令 tty 显示当前终端的设备文件
[root@htlwk0001host ~]# tty
/dev/pts/0
注：终端都会被抽象成操作系统中的某个文件。
四、命令 chvt 用来切换虚拟终端
chvt 2 等同于 Ctrl + Alt + F2 快捷键，注意：在图形界面不行。
五、命令 last 显示每个终端的登录时间和持续时间等信息
[root@htlwk0001host ~]# last
root pts/0 112.50.131.179 Fri Oct 22 09:55 still logged in
root pts/0 112.50.84.94 Thu Oct 21 13:47 - 20:33 (06:45)
root pts/0 112.50.84.94 Tue Oct 19 15:59 - 22:00 (06:01)
root pts/1 112.50.84.94 Sun Oct 17 11:26 - 23:43 (12:17)
root pts/0 112.50.84.94 Sun Oct 17 10:56 - 23:43 (12:47)
root pts/1 112.50.84.94 Sat Oct 16 15:10 - 23:21 (08:11)
root pts/0 112.50.84.94 Sat Oct 16 15:03 - 23:23 (08:19)
root pts/1 112.50.84.94 Fri Oct 15 10:54 - 00:04 (13:09)
root pts/0 112.50.84.94 Fri Oct 15 08:18 - 21:17 (12:58)
六、命令 toe -a 列出系统支持的所有终端类型
[root@htlwk0001host ~]# toe -a
Eterm-256color Eterm with xterm 256-colors
Eterm-88color Eterm with 88 colors
Eterm Eterm with xterm-style color support (X Window System)
ansi ansi/pc-term compatible with color
aterm AfterStep terminal
bterm bogl virtual terminal
cygwin ANSI emulation for Cygwin
cons25 freebsd console (25-line ansi mode)
dumb 80-column dumb tty
eterm gnu emacs term.el terminal emulation
eterm-color Emacs term.el terminal emulator term-protocol-version 0.96
gnome GNOME Terminal
gnome-256color GNOME Terminal with xterm 256-colors
hurd The GNU Hurd console server
konsole KDE console window
konsole-256color KDE console window with xterm 256-colors
kon Kanji ON Linux console
linux linux console
mach Mach Console
mach-bold Mach Console with bold instead of underline
mach-color Mach Console with ANSI color
mach-gnu GNU Mach
mach-gnu-color Mach Console with ANSI color
mlterm multi lingual terminal emulator
mrxvt multitabbed rxvt
nsterm AppKit Terminal.app
pcansi ibm-pc terminal programs claiming to be ansi
putty PuTTY terminal emulator
putty-256color PuTTY 0.58 with xterm 256-colors
rxvt rxvt terminal emulator (X Window System)
rxvt-16color rxvt with 16 colors like aixterm
rxvt-256color rxvt 2.7.9 with xterm 256-colors
rxvt-88color rxvt 2.7.9 with xterm 88-colors
rxvt-basic rxvt terminal base (X Window System)
rxvt-color rxvt terminal emulator (X Window System)
rxvt-cygwin rxvt terminal emulator (X Window System) on cygwin
rxvt-cygwin-native rxvt terminal emulator (native MS Window System port) on cygwin
rxvt-unicode rxvt-unicode terminal (X Window System)
rxvt-xpm rxvt terminal emulator (X Window System)
screen VT 100/ANSI X3.64 virtual terminal
screen-16color GNU Screen with 16 colors
screen-256color GNU Screen with 256 colors
screen.Eterm screen in Eterm
screen.gnome screen in GNOME Terminal
screen.konsole screen in KDE console window
screen.konsole-256color GNU Screen with konsole using 256 colors
screen.linux screen in linux console
screen.mlterm screen in mlterm
screen.mlterm-256color GNU Screen with mlterm using 256 colors
screen.mrxvt screen in mrxvt
screen.putty screen in putty
screen.putty-256color GNU Screen with putty using 256 colors
screen.rxvt screen in rxvt
screen.teraterm disable ncv in teraterm
screen.vte screen in any VTE-based terminal
screen.vte-256color GNU Screen with vte using 256 colors
screen.xterm-256color GNU Screen with xterm using 256 colors
screen.xterm-r6 screen customized for X11R6 xterm
screen.xterm-xfree86 screen customized for modern xterm
st simpleterm
st-16color simpleterm with 16-colors
st-256color simpleterm with 256 colors
sun Sun Microsystems Inc. workstation console
teraterm Tera Term
teraterm2.3 Tera Term Pro
tmux tmux terminal multiplexer
tmux-256color tmux with 256 colors
vt100-nav vt100 without advanced video option
vt102 dec vt102
vt52 dec vt52
vte VTE aka GNOME Terminal
vte-256color VTE with xterm 256-colors
vwmterm (vwm term)
vt100 dec vt100 (w/advanced video)
vt220 dec vt220
wsvt25 NetBSD wscons in 25 line DEC VT220 mode
wsvt25m NetBSD wscons in 25 line DEC VT220 mode with Meta
xfce Xfce Terminal
xterm xterm terminal emulator (X Window System)
xterm-1002 xterm any-event mouse
xterm-1003 testing xterm-mouse
xterm-1005 xterm UTF-8 mouse
xterm-1006 xterm SGR-mouse
xterm-16color xterm with 16 colors like aixterm
xterm-256color xterm with 256 colors
xterm-88color xterm with 88 colors
xterm-8bit xterm terminal emulator 8-bit controls (X Window System)
xterm-basic modern xterm terminal emulator - common
xterm-bold xterm terminal emulator (X11R6 Window System) standout w/bold
xterm-direct xterm with direct-color indexing
xterm-direct2 xterm with direct-color indexing (old)
xterm-hp xterm with hpterm function keys
xterm-new modern xterm terminal emulator
xterm-nic xterm with ich/ich1 suppressed for non-curses programs
xterm-noapp xterm with cursor keys in normal mode
xterm-old antique xterm version
xterm-pcolor xterm with color used for highlights and status line
xterm-r5 xterm R5 version
xterm-r6 xterm X11R6 version
xterm-sco xterm with SCO function keys
xterm-sun xterm with sunFunctionKeys true
xterm-utf8 xterm with no VT100 line-drawing in UTF-8 mode
xterm-vt220 xterm emulating vt220
xterm-vt52 xterm emulating dec vt52
xterm-x10mouse X10 xterm mouse
xterm-x11hilite X11 mouse with highlight
xterm-x11mouse X11 mouse
xterm-xf86-v32 xterm terminal emulator (XFree86 3.2 Window System)
xterm-xf86-v33 xterm terminal emulator (XFree86 3.3 Window System)
xterm-xf86-v333 xterm terminal emulator (XFree86 3.3.3 Window System)
xterm-xf86-v40 xterm terminal emulator (XFree86 4.0 Window System)
xterm-xf86-v43 xterm terminal emulator (XFree86 4.3 Window System)
xterm-xf86-v44 xterm terminal emulator (XFree86 4.4 Window System)
xterm-xfree86 xterm terminal emulator (XFree86)
xterm-xi xterm on XI Graphics Accelerated X under BSD/OS 3.1
xterm-color generic color xterm
xterm-24 xterm terminal emulator (X Window System)
七、命令infocmp来比较两个终端的区别
比如 infocmp vt100 vt220 将会输出 vt100 和 vt220 的区别：
[root@htlwk0001host ~]# infocmp vt100 vt220
comparing vt100 to vt220.comparing booleans.mir: F:T.comparing numbers.comparing strings.blink: '\E[5m$<2>', '\E[5m'.bold: '\E[1m$<2>', '\E[1m'.clear: '\E[H\E[J$<50>', '\E[H\E[J'.cuf1: '\E[C$<2>', '\E[C'.cup: '\E[%i%p1%d;%p2%dH$<5>', '\E[%i%p1%d;%p2%dH'.cuu1: '\E[A$<2>', '\E[A'.dch: NULL, '\E[%p1%dP'.dch1: NULL, '\E[P'.dl: NULL, '\E[%p1%dM'.dl1: NULL, '\E[M'....
)
