how to write commands into shell script?

how to write commands into shell script?

References

Reference NO 1

http://stackoverflow.com/questions/10220019/how-to-write-a-shell-script-that-runs-some-commands-as-superuser-and-some-comman

Reference NO 2

http://linuxcommand.org/writing_shell_scripts.php

Reference NO 3

http://www.ceri.memphis.edu/computer/docs/unix/shell_help.html

Reference NO 4

http://publib.boulder.ibm.com/infocenter/pseries/v5r3/topic/com.ibm.aix.cmds/doc/aixcmds6/write.htm

Reference NO 5

http://www.atnf.csiro.au/computing/software/miriad/userguide/node20.html

Reference NO 6

http://www.calpoly.edu/~rasplund/script.html

Reference NO 7

http://www.cyberciti.biz/faq/how-to-write-output-to-terminal/

Reference NO 8

https://www.linux.com/learn/tutorials/284789-writing-a-simple-bash-script-