Instruction: What is the detailed desciption of the `split`?

Output:
Output pieces of FILE to PREFIXaa, PREFIXab, ...; default size is 1000 lines, and default PREFIX is 'x'.

       With no FILE, or when FILE is -, read standard input.

       Mandatory arguments to long options are mandatory for short options too.

       -a, --suffix-length=N
              generate suffixes of length N (default 2)

       --additional-suffix=SUFFIX
              append an additional SUFFIX to file names

       -b, --bytes=SIZE
              put SIZE bytes per output file

       -C, --line-bytes=SIZE
              put at most SIZE bytes of records per output file

       -d     use numeric suffixes starting at 0, not alphabetic

       --numeric-suffixes[=FROM]
              same as -d, but allow setting the start value

       -x     use hex suffixes starting at 0, not alphabetic

       --hex-suffixes[=FROM]
              same as -x, but allow setting the start value

       -e, --elide-empty-files
              do not generate empty output files with '-n'

       --filter=COMMAND
              write to shell COMMAND; file name is $FILE

       -l, --lines=NUMBER
              put NUMBER lines/records per output file

       -n, --number=CHUNKS
              generate CHUNKS output files; see explanation below

       -t, --separator=SEP
              use SEP instead of newline as the record separator; '\0' (zero) specifies the NUL character

       -u, --unbuffered
              immediately copy input to output with '-n r/...'

       --verbose
              print a diagnostic just before each output file is opened

       --help display this help and exit

       --version
              output version information and exit

       The  SIZE  argument  is  an  integer and optional unit (example: 10K is 10*1024).  Units are K,M,G,T,P,E,Z,Y,R,Q
       (powers of 1024) or KB,MB,... (powers of 1000).  Binary prefixes can be used, too: KiB=K, MiB=M, and so on.

   CHUNKS may be:
       N      split into N files based on size of input

       K/N    output Kth of N to stdout

       l/N    split into N files without splitting lines/records

       l/K/N  output Kth of N to stdout without splitting lines/records

       r/N    like 'l' but use round robin distribution

       r/K/N  likewise but only output Kth of N to stdout


Instruction: What does the command `yes` do?

Output: yes - output a string repeatedly until killed


Instruction: How is the `yes` used?

Output:
yes [STRING]...
       yes OPTION


Instruction: What is the detailed desciption of the `yes`?

Output:
Repeatedly output a line with all specified STRING(s), or 'y'.

       --help display this help and exit

       --version
              output version information and exit


Instruction: What does the command `users` do?

Output: users - print the user names of users currently logged in to the current host


Instruction: How is the `users` used?

Output: users [OPTION]... [FILE]


Instruction: What is the detailed desciption of the `users`?

Output:
Output  who  is  currently  logged  in  according  to  FILE.   If  FILE  is  not  specified,  use /var/run/utmp.
       /var/log/wtmp as FILE is common.

       --help display this help and exit

       --version
              output version information and exit