Scan single character in c as in bash

Scan single character in c as in bash

References

Reference NO 1

http://stackoverflow.com/questions/15198819/scan-single-character-in-c-as-in-bash

Reference NO 2

http://www.cyberciti.biz/faq/linux-unix-read-one-character-atatime-while-loop/

Reference NO 3

http://linux.about.com/library/cmd/blcmdl1_bash.htm

Reference NO 4

http://www.catonmat.net/blog/bash-one-liners-explained-part-two/

Reference NO 5

http://linuxcommand.org/man_pages/bash1.html

Reference NO 6

http://developer.apple.com/documentation/Darwin/Reference/ManPages/man1/bash.1.html

Reference NO 7

http://wiki.bash-hackers.org/syntax/quoting

Reference NO 8

http://mywiki.wooledge.org/BashPitfalls