C Functions and System Calls
Acronym | Meaning |
---|---|
atof | ASCII to float |
atoi | ASCII to integer |
brk | break |
bsearch | binary search |
calloc | count or cleared allocation (?) (see here) |
chdir | change directory |
ctime | convert time |
dup | duplicate |
execl | execute list |
execle | execl with environment |
execlp | execl with path search |
execv | execute (with arguments passed in a) vector |
execve | execv with environment |
execvp | execv with path search |
fcntl | file control |
fprintf | file print formatted |
fscanf | file scan formatted |
ftok | file token |
ftw | file tree walk |
ioctl | input/output control |
isatty | is a tty |
malloc | memory allocation |
pclose | process close |
popen | process open |
printf | print formatted |
qsort | quick sort |
realloc | re-allocate |
regcmp | regular expression compile |
regex | regular expression execute |
sbrk | segment break |
scanf | scan formatted |
sprintf | string print formatted |
srand | seed random number generator |
sscanf | string scan formatted |
strcspn | string character span |
strcat | string concatenate |
strchr | string (find) character |
strcmp | string compare |
strcpy | string copy |
strlen | string length |
strpbrk | string pointer break |
strrchr | string (find from the right) character |
strspn | string span |
strstr | string (find) string |
strtol | string to long |
strtok | string tokenize |
umask | user's (file creation) mask (see here) |
vprintf | varargs print formatted |