You want xclip (x11/xclip in pkgsrc/OpenBSD ports).
$ xclip < /etc/ttys
Code:
#
# $OpenBSD: ttys,v 1.18 2008/01/09 17:39:42 miod Exp $
#
# name getty type status comments
#
console "/usr/libexec/getty std.9600" vt220 off secure
ttyC0 "/usr/libexec/getty std.9600" vt220 on secure
ttyC1 "/usr/libexec/getty std.9600" vt220 on secure
ttyC2 "/usr/libexec/getty std.9600" vt220 on secure
ttyC3 "/usr/libexec/getty std.9600" vt220 on secure
ttyC4 "/usr/libexec/getty std.9600" vt220 off secure
ttyC5 "/usr/libexec/getty std.9600" vt220 on secure
ttyC6 "/usr/libexec/getty std.9600" vt220 off secure
ttyC7 "/usr/libexec/getty std.9600" vt220 off secure
ttyC8 "/usr/libexec/getty std.9600" vt220 off secure
ttyC9 "/usr/libexec/getty std.9600" vt220 off secure
ttyCa "/usr/libexec/getty std.9600" vt220 off secure
ttyCb "/usr/libexec/getty std.9600" vt220 off secure
tty00 "/usr/libexec/getty std.9600" unknown off
tty01 "/usr/libexec/getty std.9600" unknown off
tty02 "/usr/libexec/getty std.9600" unknown off
tty03 "/usr/libexec/getty std.9600" unknown off
tty04 "/usr/libexec/getty std.9600" unknown off
tty05 "/usr/libexec/getty std.9600" unknown off
tty06 "/usr/libexec/getty std.9600" unknown off
tty07 "/usr/libexec/getty std.9600" unknown off
ttyp0 none network
ttyp1 none network
ttyp2 none network
ttyp3 none network
ttyp4 none network
ttyp5 none network
ttyp6 none network
ttyp7 none network
ttyp8 none network
ttyp9 none network
ttypa none network
ttypb none network
ttypc none network
ttypd none network
ttype none network
ttypf none network
ttypg none network
ttyph none network
ttypi none network
ttypj none network
ttypk none network
ttypl none network
ttypm none network
ttypn none network
ttypo none network
ttypp none network
ttypq none network
ttypr none network
ttyps none network
ttypt none network
ttypu none network
ttypv none network
ttypw none network
ttypx none network
ttypy none network
ttypz none network
ttypA none network
ttypB none network
ttypC none network
ttypD none network
ttypE none network
ttypF none network
ttypG none network
ttypH none network
ttypI none network
ttypJ none network
ttypK none network
ttypL none network
ttypM none network
ttypN none network
ttypO none network
ttypP none network
ttypQ none network
ttypR none network
ttypS none network
ttypT none network
ttypU none network
ttypV none network
ttypW none network
ttypX none network
ttypY none network
ttypZ none network
ttyq0 none network
ttyq1 none network
ttyq2 none network
ttyq3 none network
ttyq4 none network
ttyq5 none network
ttyq6 none network
ttyq7 none network
ttyq8 none network
ttyq9 none network
ttyqa none network
ttyqb none network
ttyqc none network
ttyqd none network
ttyqe none network
ttyqf none network
ttyqg none network
ttyqh none network
ttyqi none network
ttyqj none network
ttyqk none network
ttyql none network
ttyqm none network
ttyqn none network
ttyqo none network
ttyqp none network
ttyqq none network
ttyqr none network
ttyqs none network
ttyqt none network
ttyqu none network
ttyqv none network
ttyqw none network
ttyqx none network
ttyqy none network
ttyqz none network
ttyqA none network
ttyqB none network
ttyqC none network
ttyqD none network
ttyqE none network
ttyqF none network
ttyqG none network
ttyqH none network
ttyqI none network
ttyqJ none network
ttyqK none network
ttyqL none network
ttyqM none network
ttyqN none network
ttyqO none network
ttyqP none network
ttyqQ none network
ttyqR none network
ttyqS none network
ttyqT none network
ttyqU none network
ttyqV none network
ttyqW none network
ttyqX none network
ttyqY none network
ttyqZ none network
ttyr0 none network
ttyr1 none network
ttyr2 none network
ttyr3 none network
ttyr4 none network
ttyr5 none network
ttyr6 none network
ttyr7 none network
ttyr8 none network
ttyr9 none network
ttyra none network
ttyrb none network
ttyrc none network
ttyrd none network
ttyre none network
ttyrf none network
ttyrg none network
ttyrh none network
ttyri none network
ttyrj none network
ttyrk none network
ttyrl none network
ttyrm none network
ttyrn none network
ttyro none network
ttyrp none network
ttyrq none network
ttyrr none network
ttyrs none network
ttyrt none network
ttyru none network
ttyrv none network
ttyrw none network
ttyrx none network
ttyry none network
ttyrz none network
ttyrA none network
ttyrB none network
ttyrC none network
ttyrD none network
ttyrE none network
ttyrF none network
ttyrG none network
ttyrH none network
ttyrI none network
ttyrJ none network
ttyrK none network
ttyrL none network
ttyrM none network
ttyrN none network
ttyrO none network
ttyrP none network
ttyrQ none network
ttyrR none network
ttyrS none network
ttyrT none network
ttyrU none network
ttyrV none network
ttyrW none network
ttyrX none network
ttyrY none network
ttyrZ none network
ttys0 none network
ttys1 none network
ttys2 none network
ttys3 none network
ttys4 none network
ttys5 none network
ttys6 none network
ttys7 none network
ttys8 none network
ttys9 none network
ttysa none network
ttysb none network
ttysc none network
ttysd none network
ttyse none network
ttysf none network
ttysg none network
ttysh none network
ttysi none network
ttysj none network
ttysk none network
ttysl none network
ttysm none network
ttysn none network
ttyso none network
ttysp none network
ttysq none network
ttysr none network
ttyss none network
ttyst none network
ttysu none network
ttysv none network
ttysw none network
ttysx none network
ttysy none network
ttysz none network
ttysA none network
ttysB none network
ttysC none network
ttysD none network
ttysE none network
ttysF none network
ttysG none network
ttysH none network
ttysI none network
ttysJ none network
ttysK none network
ttysL none network
ttysM none network
ttysN none network
ttysO none network
ttysP none network
ttysQ none network
ttysR none network
ttysS none network
ttysT none network
ttysU none network
ttysV none network
ttysW none network
ttysX none network
ttysY none network
ttysZ none network
ttyt0 none network
ttyt1 none network
ttyt2 none network
ttyt3 none network
ttyt4 none network
ttyt5 none network
ttyt6 none network
ttyt7 none network
ttyt8 none network
ttyt9 none network
ttyta none network
ttytb none network
ttytc none network
ttytd none network
ttyte none network
ttytf none network
ttytg none network
ttyth none network
ttyti none network
ttytj none network
ttytk none network
ttytl none network
ttytm none network
ttytn none network
ttyto none network
ttytp none network
ttytq none network
ttytr none network
ttyts none network
ttytt none network
ttytu none network
ttytv none network
ttytw none network
ttytx none network
ttyty none network
ttytz none network
ttytA none network
ttytB none network
ttytC none network
ttytD none network
ttytE none network
ttytF none network
ttytG none network
ttytH none network
ttytI none network
ttytJ none network
ttytK none network
ttytL none network
ttytM none network
ttytN none network
ttytO none network
ttytP none network
ttytQ none network
ttytR none network
ttytS none network
ttytT none network
ttytU none network
ttytV none network
ttytW none network
ttytX none network
ttytY none network
ttytZ none network
ttyu0 none network
ttyu1 none network
ttyu2 none network
ttyu3 none network
ttyu4 none network
ttyu5 none network
ttyu6 none network
ttyu7 none network
ttyu8 none network
ttyu9 none network
ttyua none network
ttyub none network
ttyuc none network
ttyud none network
ttyue none network
ttyuf none network
ttyug none network
ttyuh none network
ttyui none network
ttyuj none network
ttyuk none network
ttyul none network
ttyum none network
ttyun none network
ttyuo none network
ttyup none network
ttyuq none network
ttyur none network
ttyus none network
ttyut none network
ttyuu none network
ttyuv none network
ttyuw none network
ttyux none network
ttyuy none network
ttyuz none network
ttyuA none network
ttyuB none network
ttyuC none network
ttyuD none network
ttyuE none network
ttyuF none network
ttyuG none network
ttyuH none network
ttyuI none network
ttyuJ none network
ttyuK none network
ttyuL none network
ttyuM none network
ttyuN none network
ttyuO none network
ttyuP none network
ttyuQ none network
ttyuR none network
ttyuS none network
ttyuT none network
ttyuU none network
ttyuV none network
ttyuW none network
ttyuX none network
ttyuY none network
ttyuZ none network
ttyv0 none network
ttyv1 none network
ttyv2 none network
ttyv3 none network
ttyv4 none network
ttyv5 none network
ttyv6 none network
ttyv7 none network
ttyv8 none network
ttyv9 none network
ttyva none network
ttyvb none network
ttyvc none network
ttyvd none network
ttyve none network
ttyvf none network
ttyvg none network
ttyvh none network
ttyvi none network
ttyvj none network
ttyvk none network
ttyvl none network
ttyvm none network
ttyvn none network
ttyvo none network
ttyvp none network
ttyvq none network
ttyvr none network
ttyvs none network
ttyvt none network
ttyvu none network
ttyvv none network
ttyvw none network
ttyvx none network
ttyvy none network
ttyvz none network
ttyvA none network
ttyvB none network
ttyvC none network
ttyvD none network
ttyvE none network
ttyvF none network
ttyvG none network
ttyvH none network
ttyvI none network
ttyvJ none network
ttyvK none network
ttyvL none network
ttyvM none network
ttyvN none network
ttyvO none network
ttyvP none network
ttyvQ none network
ttyvR none network
ttyvS none network
ttyvT none network
ttyvU none network
ttyvV none network
ttyvW none network
ttyvX none network
ttyvY none network
ttyvZ none network
ttyw0 none network
ttyw1 none network
ttyw2 none network
ttyw3 none network
ttyw4 none network
ttyw5 none network
ttyw6 none network
ttyw7 none network
ttyw8 none network
ttyw9 none network
ttywa none network
ttywb none network
ttywc none network
ttywd none network
ttywe none network
ttywf none network
ttywg none network
ttywh none network
ttywi none network
ttywj none network
ttywk none network
ttywl none network
ttywm none network
ttywn none network
ttywo none network
ttywp none network
ttywq none network
ttywr none network
ttyws none network
ttywt none network
ttywu none network
ttywv none network
ttyww none network
ttywx none network
ttywy none network
ttywz none network
ttywA none network
ttywB none network
ttywC none network
ttywD none network
ttywE none network
ttywF none network
ttywG none network
ttywH none network
ttywI none network
ttywJ none network
ttywK none network
ttywL none network
ttywM none network
ttywN none network
ttywO none network
ttywP none network
ttywQ none network
ttywR none network
ttywS none network
ttywT none network
ttywU none network
ttywV none network
ttywW none network
ttywX none network
ttywY none network
ttywZ none network
ttyx0 none network
ttyx1 none network
ttyx2 none network
ttyx3 none network
ttyx4 none network
ttyx5 none network
ttyx6 none network
ttyx7 none network
ttyx8 none network
ttyx9 none network
ttyxa none network
ttyxb none network
ttyxc none network
ttyxd none network
ttyxe none network
ttyxf none network
ttyxg none network
ttyxh none network
ttyxi none network
ttyxj none network
ttyxk none network
ttyxl none network
ttyxm none network
ttyxn none network
ttyxo none network
ttyxp none network
ttyxq none network
ttyxr none network
ttyxs none network
ttyxt none network
ttyxu none network
ttyxv none network
ttyxw none network
ttyxx none network
ttyxy none network
ttyxz none network
ttyxA none network
ttyxB none network
ttyxC none network
ttyxD none network
ttyxE none network
ttyxF none network
ttyxG none network
ttyxH none network
ttyxI none network
ttyxJ none network
ttyxK none network
ttyxL none network
ttyxM none network
ttyxN none network
ttyxO none network
ttyxP none network
ttyxQ none network
ttyxR none network
ttyxS none network
ttyxT none network
ttyxU none network
ttyxV none network
ttyxW none network
ttyxX none network
ttyxY none network
ttyxZ none network
ttyy0 none network
ttyy1 none network
ttyy2 none network
ttyy3 none network
ttyy4 none network
ttyy5 none network
ttyy6 none network
ttyy7 none network
ttyy8 none network
ttyy9 none network
ttyya none network
ttyyb none network
ttyyc none network
ttyyd none network
ttyye none network
ttyyf none network
ttyyg none network
ttyyh none network
ttyyi none network
ttyyj none network
ttyyk none network
ttyyl none network
ttyym none network
ttyyn none network
ttyyo none network
ttyyp none network
ttyyq none network
ttyyr none network
ttyys none network
ttyyt none network
ttyyu none network
ttyyv none network
ttyyw none network
ttyyx none network
ttyyy none network
ttyyz none network
ttyyA none network
ttyyB none network
ttyyC none network
ttyyD none network
ttyyE none network
ttyyF none network
ttyyG none network
ttyyH none network
ttyyI none network
ttyyJ none network
ttyyK none network
ttyyL none network
ttyyM none network
ttyyN none network
ttyyO none network
ttyyP none network
ttyyQ none network
ttyyR none network
ttyyS none network
ttyyT none network
ttyyU none network
ttyyV none network
ttyyW none network
ttyyX none network
ttyyY none network
ttyyZ none network
ttyz0 none network
ttyz1 none network
ttyz2 none network
ttyz3 none network
ttyz4 none network
ttyz5 none network
ttyz6 none network
ttyz7 none network
ttyz8 none network
ttyz9 none network
ttyza none network
ttyzb none network
ttyzc none network
ttyzd none network
ttyze none network
ttyzf none network
ttyzg none network
ttyzh none network
ttyzi none network
ttyzj none network
ttyzk none network
ttyzl none network
ttyzm none network
ttyzn none network
ttyzo none network
ttyzp none network
ttyzq none network
ttyzr none network
ttyzs none network
ttyzt none network
ttyzu none network
ttyzv none network
ttyzw none network
ttyzx none network
ttyzy none network
ttyzz none network
ttyzA none network
ttyzB none network
ttyzC none network
ttyzD none network
ttyzE none network
ttyzF none network
ttyzG none network
ttyzH none network
ttyzI none network
ttyzJ none network
ttyzK none network
ttyzL none network
ttyzM none network
ttyzN none network
ttyzO none network
ttyzP none network
ttyzQ none network
ttyzR none network
ttyzS none network
ttyzT none network
ttyzU none network
ttyzV none network
ttyzW none network
ttyzX none network
ttyzY none network
ttyzZ none network
ttyP0 none network
ttyP1 none network
ttyP2 none network
ttyP3 none network
ttyP4 none network
ttyP5 none network
ttyP6 none network
ttyP7 none network
ttyP8 none network
ttyP9 none network
ttyPa none network
ttyPb none network
ttyPc none network
ttyPd none network
ttyPe none network
ttyPf none network
ttyPg none network
ttyPh none network
ttyPi none network
ttyPj none network
ttyPk none network
ttyPl none network
ttyPm none network
ttyPn none network
ttyPo none network
ttyPp none network
ttyPq none network
ttyPr none network
ttyPs none network
ttyPt none network
ttyPu none network
ttyPv none network
ttyPw none network
ttyPx none network
ttyPy none network
ttyPz none network
ttyPA none network
ttyPB none network
ttyPC none network
ttyPD none network
ttyPE none network
ttyPF none network
ttyPG none network
ttyPH none network
ttyPI none network
ttyPJ none network
ttyPK none network
ttyPL none network
ttyPM none network
ttyPN none network
ttyPO none network
ttyPP none network
ttyPQ none network
ttyPR none network
ttyPS none network
ttyPT none network
ttyPU none network
ttyPV none network
ttyPW none network
ttyPX none network
ttyPY none network
ttyPZ none network
ttyQ0 none network
ttyQ1 none network
ttyQ2 none network
ttyQ3 none network
ttyQ4 none network
ttyQ5 none network
ttyQ6 none network
ttyQ7 none network
ttyQ8 none network
ttyQ9 none network
ttyQa none network
ttyQb none network
ttyQc none network
ttyQd none network
ttyQe none network
ttyQf none network
ttyQg none network
ttyQh none network
ttyQi none network
ttyQj none network
ttyQk none network
ttyQl none network
ttyQm none network
ttyQn none network
ttyQo none network
ttyQp none network
ttyQq none network
ttyQr none network
ttyQs none network
ttyQt none network
ttyQu none network
ttyQv none network
ttyQw none network
ttyQx none network
ttyQy none network
ttyQz none network
ttyQA none network
ttyQB none network
ttyQC none network
ttyQD none network
ttyQE none network
ttyQF none network
ttyQG none network
ttyQH none network
ttyQI none network
ttyQJ none network
ttyQK none network
ttyQL none network
ttyQM none network
ttyQN none network
ttyQO none network
ttyQP none network
ttyQQ none network
ttyQR none network
ttyQS none network
ttyQT none network
ttyQU none network
ttyQV none network
ttyQW none network
ttyQX none network
ttyQY none network
ttyQZ none network
ttyR0 none network
ttyR1 none network
ttyR2 none network
ttyR3 none network
ttyR4 none network
ttyR5 none network
ttyR6 none network
ttyR7 none network
ttyR8 none network
ttyR9 none network
ttyRa none network
ttyRb none network
ttyRc none network
ttyRd none network
ttyRe none network
ttyRf none network
ttyRg none network
ttyRh none network
ttyRi none network
ttyRj none network
ttyRk none network
ttyRl none network
ttyRm none network
ttyRn none network
ttyRo none network
ttyRp none network
ttyRq none network
ttyRr none network
ttyRs none network
ttyRt none network
ttyRu none network
ttyRv none network
ttyRw none network
ttyRx none network
ttyRy none network
ttyRz none network
ttyRA none network
ttyRB none network
ttyRC none network
ttyRD none network
ttyRE none network
ttyRF none network
ttyRG none network
ttyRH none network
ttyRI none network
ttyRJ none network
ttyRK none network
ttyRL none network
ttyRM none network
ttyRN none network
ttyRO none network
ttyRP none network
ttyRQ none network
ttyRR none network
ttyRS none network
ttyRT none network
ttyRU none network
ttyRV none network
ttyRW none network
ttyRX none network
ttyRY none network
ttyRZ none network
ttyS0 none network
ttyS1 none network
ttyS2 none network
ttyS3 none network
ttyS4 none network
ttyS5 none network
ttyS6 none network
ttyS7 none network
ttyS8 none network
ttyS9 none network
ttySa none network
ttySb none network
ttySc none network
ttySd none network
ttySe none network
ttySf none network
ttySg none network
ttySh none network
ttySi none network
ttySj none network
ttySk none network
ttySl none network
ttySm none network
ttySn none network
ttySo none network
ttySp none network
ttySq none network
ttySr none network
ttySs none network
ttySt none network
ttySu none network
ttySv none network
ttySw none network
ttySx none network
ttySy none network
ttySz none network
ttySA none network
ttySB none network
ttySC none network
ttySD none network
ttySE none network
ttySF none network
ttySG none network
ttySH none network
ttySI none network
ttySJ none network
ttySK none network
ttySL none network
ttySM none network
ttySN none network
ttySO none network
ttySP none network
ttySQ none network
ttySR none network
ttySS none network
ttyST none network
ttySU none network
ttySV none network
ttySW none network
ttySX none network
ttySY none network
ttySZ none network
ttyT0 none network
ttyT1 none network
ttyT2 none network
ttyT3 none network
ttyT4 none network
ttyT5 none network
ttyT6 none network
ttyT7 none network
ttyT8 none network
ttyT9 none network
ttyTa none network
ttyTb none network
ttyTc none network
ttyTd none network
ttyTe none network
ttyTf none network
ttyTg none network
ttyTh none network
ttyTi none network
ttyTj none network
ttyTk none network
ttyTl none network
ttyTm none network
ttyTn none network
ttyTo none network
ttyTp none network
ttyTq none network
ttyTr none network
ttyTs none network
ttyTt none network
ttyTu none network
ttyTv none network
ttyTw none network
ttyTx none network
ttyTy none network
ttyTz none network
ttyTA none network
ttyTB none network
ttyTC none network
ttyTD none network
ttyTE none network
ttyTF none network
ttyTG none network
ttyTH none network
ttyTI none network
ttyTJ none network
ttyTK none network
ttyTL none network
ttyTM none network
ttyTN none network
ttyTO none network
ttyTP none network
ttyTQ none network
ttyTR none network
ttyTS none network
ttyTT none network
ttyTU none network
ttyTV none network
ttyTW none network
ttyTX none network
ttyTY none network
ttyTZ none network
Edit: Whoops, didn’t see BSDfan666 had pointed it out already. But this is definitely a convenient tool.