cal(1) |
displays a calendar |
cat(1) |
concatenate and print files |
chmod(1) |
change file modes |
cmp(1) |
compare two files |
cp(1) |
copy files |
date(1) |
display or set date and time |
dc(1) |
desk calculator |
df(1) |
display free disk space |
du(1) |
display disk usage statistics |
ed(1) |
text editor |
find(1) |
walk a file hierarchy |
ln(1) |
make hard and symbolic links to files |
ls(1) |
list directory contents |
mail, Mail, mailx(1) |
send and receive mail |
mesg(1) |
display (do not display) messages from other users |
mkdir(1) |
make directories |
mv(1) |
move files |
nm(1) |
display name list (symbol table) |
od(1) |
octal, decimal, hex, ascii dump |
pr(1) |
print files |
rm(1) |
remove directory entries |
rmdir(1) |
remove directories |
sort(1) |
sort, merge, or sequence check text and binary files |
stat(1) |
display file status |
su(1) |
substitute user identity |
tty(1) |
return user's terminal name |
wc(1) |
word, line, and byte or character count |
who(1) |
display who is logged in |
write(1) |
send a message to another user |
_exit, _Exit(2) |
terminate the calling process |
access, faccessat(2) |
check access permissions of a file or pathname |
brk, sbrk(2) |
change data segment size |
chdir, fchdir(2) |
change current working directory |
chmod, fchmod, fchmodat(2) |
change mode of file |
chown, fchown, fchownat, lchown(2) |
change owner and group of a file or link |
close(2) |
delete a descriptor |
execve(2) |
execute a file |
fork(2) |
create a new process |
gettimeofday, settimeofday(2) |
get or set the time of day |
getuid, geteuid(2) |
get user identification |
link, linkat(2) |
make hard link to a file |
lseek(2) |
reposition read/write file offset |
mkdir, mkdirat(2) |
make a directory file |
mount, unmount(2) |
mount or dismount a filesystem |
open, openat(2) |
open or create a file for reading or writing |
read, pread, preadv, readv(2) |
read input |
setuid, setegid, seteuid, setgid(2) |
set user and group ID |
stat, fstat, fstatat, lstat, S_ISBLK, S_ISCHR, S_ISDIR, S_ISFIFO, S_ISLNK, S_ISREG, S_ISSOCK(2) |
get file status |
unlink, unlinkat(2) |
remove directory entry |
utimes, futimens, futimes, utimensat(2) |
set file access and modification times |
wait, wait3, wait4, waitpid, WCOREDUMP, WEXITSTATUS, WIFCONTINUED, WIFEXITED, WIFSIGNALED, WIFSTOPPED, WSTOPSIG, WTERMSIG(2) |
wait for process termination |
write, pwrite, pwritev, writev(2) |
write output |
atof(3) |
convert ASCII string to double |
atoi(3) |
convert ASCII string to integer |
cos, cosf, cosl(3) |
cosine functions |
creat(3) |
create a new file |
ctime, asctime, asctime_r, ctime_r, difftime, gmtime, gmtime_r, localtime, localtime_r, mktime, timegm, timelocal(3) |
convert date and time to ASCII |
exit(3) |
perform normal program termination |
exp, exp2, exp2f, exp2l, expf, expl, expm1, expm1f, expm1l, log, log10, log10f, log10l, log1p, log1pf, log1pl, log2, log2f, log2l, logf, logl, pow, powf, powl(3) |
exponential, logarithm, power functions |
fflush, fpurge(3) |
flush a stream |
fopen, fdopen, freopen(3) |
stream open functions |
getc, fgetc, getchar, getw(3) |
get next character or word from input stream |
glob, globfree(3) |
generate pathnames matching a pattern |
malloc, aligned_alloc, calloc, calloc_conceal, free, freezero, malloc_conceal, realloc, reallocarray, recallocarray(3) |
memory allocation and deallocation |
printf, asprintf, dprintf, fprintf, snprintf, sprintf, vasprintf, vdprintf, vfprintf, vprintf, vsnprintf, vsprintf(3) |
formatted output conversion |
putc, fputc, putchar, putw(3) |
output a character or word to a stream |
sin, sinf, sinl(3) |
sine functions |
strftime, strftime_l(3) |
format date and time |
time(3) |
get time of day |
mem, kmem(4/alpha) |
memory files |
mem, kmem(4/amd64) |
memory files |
mem, kmem(4/i386) |
memory files |
mem, kmem(4/landisk) |
memory files |
mem, kmem(4/loongson) |
memory files |
mem, kmem(4/luna88k) |
memory files |
mem, kmem(4/macppc) |
memory files |
mem, kmem(4/sparc64) |
memory files |
tty, cua(4) |
general terminal interface |
core(5) |
memory image file format |
dir, dirent(5) |
directory file format |
passwd, master.passwd(5) |
format of the password file |
utmp, lastlog, wtmp(5) |
login records |
glob(7) |
shell-style pattern matching |
roff(7) |
roff language reference for mandoc |
chown(8) |
change file owner and group |
init(8) |
process control initialization |
mount(8) |
mount file systems |
umount(8) |
unmount file systems |