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 symlink(2) -- make a new name for a file
    symlink creates a symbolic link named newpath which contains the string oldpath. Symbolic links are interpreted at run-time as if the contents of the link had been substituted into the path being foll...
 sync(2) -- commit buffer cache to disk.
    sync first commits inodes to buffers, and then buffers to disk.
 syscalls(2) -- list of all system calls
    As of Linux 2.0.34, there are 164 system calls listed in /usr/include/asm/unistd.h. This man page lists them. _llseek(2), _newselect(2), _sysctl(2), access(2), acct(2), adjtimex(2), afs_syscall, alarm...
 sysctl(2) -- read/write system parameters
    The _sysctl call reads and/or writes kernel parameters. For example, the hostname, or the maximum number of open files. The argument has the form struct __sysctl_args { int *name; /* integer vector de...
 sysfs(2) -- get file system type information
    sysfs returns information about the file system types currently present in the kernel. The specific form of the sysfs call and the information returned depends on the option in effect: 1 Translate the...
 sysinfo(2) -- returns information on overall system statistics
    Until Linux 2.3.16, sysinfo used to return information in the following structure: struct sysinfo { long uptime; /* Seconds since boot */ unsigned long loads[3]; /* 1, 5, and 15 minute load averages *...
 syslog(2) -- read and/or clear kernel message ring buffer; set console_loglevel
    This is probably not the function you are interested in. Look at sys- log(3) for the C library interface. This page only documents the bare kernel system call interface. The type argument determines t...
 time(2) -- get time in seconds
    time returns the time since the Epoch (00:00:00 UTC, January 1, 1970), measured in seconds. If t is non-NULL, the return value is also stored in the memory pointed to by t.
 times(2) -- get process times
    The times() function stores the current process times in the struct tms that buf points to. The struct tms is as defined in : struct tms { clock_t tms_utime; /* user time */ clock_t tms_s...
 truncate(2) -- truncate a file to a specified length
    Truncate causes the file named by path or referenced by fd to be truncated to at most length bytes in size. If the file previously was larger than this size, the extra data is lost. If the file previo...
 umask(2) -- set file creation mask
    umask sets the umask to mask & 0777. The umask is used by open(2) to set initial file permissions on a newly-created file. Specifically, permissions in the umask are turned off from the mode argument ...
 uname(2) -- get name and information about current kernel
    uname returns system information in the structure pointed to by buf. The utsname struct is as defined in : struct utsname { char sysname[SYS_NMLN]; char nodename[SYS_NMLN]; char release...
 unimplemented(2) -- unimplemented system calls
    These system calls are not implemented in the Linux 2.0 kernel.
 unlink(2) -- delete a name and possibly the file it refers to
    unlink deletes a name from the filesystem. If that name was the last link to a file and no processes have the file open the file is deleted and the space it was using is made available for reuse. If t...
 uselib(2) -- select shared library
    uselib selects the shared library binary that will be used by the calling process.
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