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AT&T UNIX™PC Unix System V Users Manual - tenox

AT&T UNIX™PC Unix System V Users Manual - tenox

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Table of Contents<br />

tee<br />

• . . • . • . • • • • • • . • . • • • pipe fitting<br />

test<br />

. . . . • • • • condition evaluation command<br />

time • • . • • . . • • . • . . . . • • . • • • time a command<br />

touch . • • • • update access and modification times of a file<br />

tr • • • . • . • . . • . • • • . • . • . • • translate characters<br />

true . • . • . . . . • . • . . • . . . . . • provide truth values<br />

tset • • . . . • • • • • . • . . . . • . • • . set terminal modes<br />

tsort • • . . . • • • . . • • • . . • . . • . . . topological sort<br />

tty • . . . • • . . • • . • . • . . • • . get the terminal's name<br />

uahelp • . • • . user agent help process<br />

uaupd • • . . • • . . . • . • . . . update user agent special files<br />

umask • . • • . . . . . . • • • • . • set file-creation mode mask<br />

umodem • . . . • remote file transfer program for ep /M terminals<br />

uname . print name of current UNIX system<br />

unget • undo a previous get of an sees file<br />

uniq • . . • report repeated lines in a file<br />

units . • . . • . • . . conversion program<br />

uucp . . . • • • • • • . . . . . . • . . • UNIX-to-UNIX copy<br />

uustat . uucp status inquiry and job control<br />

uuto • • • . . • . • . • . • • . . public UNIX-to-UNIX file copy<br />

uux • . . . . . . . • . . . . UNIX-to-UNIX command execution<br />

val • . . . • • • • • . . . • . • . . . • . . validate sees file<br />

vc . •<br />

vi • .<br />

• . . • • • . . . • . . . . • . . • . . . version control<br />

. screen oriented (visual) display editor based on ex<br />

wait • • . . . • . • • . • . • . . • • await completion of process<br />

we • . . . • • • • . . . . • . . • . . • . . . • • word count<br />

what • • identify sees files<br />

who • . . . . . . . . • • • . . who is on the system<br />

write<br />

xargs<br />

• . . . . . . • • . . • . write to another user<br />

• construct argument Iist(s) and execute command<br />

yacc . . . . . . . . . yet another compiler-compiler<br />

2. <strong>System</strong> Calls<br />

intro . • . . . introduction to system calls and error numbers<br />

access . . . • • • • • • . • determine accessibility of a file<br />

acct . • . . . • . . . . • . . enable or disable process accounting<br />

alarm . . . . . . . . • . . . . • • •<br />

set a process's alarm clock<br />

brk • . • . • . . . . . . . . change data segment space allocation<br />

chdir . • . . • . . • • . . • • • • • • change working directory<br />

chmod • . • . . • . change mode of file<br />

chown . change owner and group of a file<br />

chroot . . • . . . change root directory<br />

close . . . . • . close a file descriptor<br />

creat . . . • • . . • • . create a new file or rewrite an existing one<br />

dup . . . • . • . . . . . . . . . duplicate an open file descriptor<br />

exec • . . execute a file<br />

exit • . . . . . . . . . . . . • . . . . terminate process<br />

- 4-

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