Terminal control/Dimensions: Difference between revisions
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m →{{header|UNIX Shell}}: <lang bash>, not <lang sh>. |
→{{libheader|BSD libc}}: 4.4BSD has TIOCGWINSZ. Older BSD might or might not have it, but this program also uses err() from 4.4BSD. |
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Almost all terminal devices can do NAWS (Negotiate About Window Size). A terminal emulator like xterm(1) should set the size. A network server like sshd(1) should copy the size from its client. Other devices, such as plain serial ports, might not know the window size.
{{works with|
<lang c>#include <sys/ioctl.h> /* ioctl, TIOCGWINSZ */
#include <err.h> /* err */
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