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<ul> <li>The Linux console uses <code>OSC P n rr gg bb</code> to change the palette, which, if hard-coded into an application, may hang other terminals. However, appending <code>ST</code> will be ignored by Linux and form a proper, ignorable sequence for other terminals.</li> <li>On the Linux console, certain function keys generate sequences of the form <code>CSI [ char</code>. The CSI sequence should terminate on the [.</li> <li>Old versions of <a href="/wiki/Terminator_(terminal_emulator)" title="Terminator (terminal emulator)">Terminator</a> generates <code>SS3 1; modifiers char</code> when F1–F4 are pressed with modifiers. The faulty behavior was copied from <a href="/wiki/GNOME_Terminal" title="GNOME Terminal">GNOME Terminal</a>.[<a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed">citation needed</a>]</li> <li>xterm replies <code>CSI row ; column R</code> if asked for cursor position and <code>CSI 1 ; modifiers R</code> if the F3 key is pressed with modifiers, which collide in the case of row == 1. This can be avoided by using the ? private modifier, which will be reflected in the response.[<a href="/wiki/Wikipedia:Please_clarify" title="Wikipedia:Please clarify">clarification needed</a>]</li> <li>many terminals prepend <code>ESC</code> to any character that is typed with the alt key down. This creates ambiguity for uppercase letters and symbols @[\]^_, which would form C1 codes.[<a href="/wiki/Wikipedia:Please_clarify" title="Wikipedia:Please clarify">clarification needed</a>]</li> <li><a href="/wiki/Konsole" title="Konsole">Konsole</a> generates <code>SS3 modifiers char</code> when F1–F4 are pressed with modifiers.[<a href="/wiki/Wikipedia:Please_clarify" title="Wikipedia:Please clarify">clarification needed</a>]</li> </ul>