Shell Programming and Scripting

HGSDC:MSISDN=917807000032,SUD=CAT-10&DBSG-1&BS3G-1&TS11-1&TS21-1&TS22-1&RSA-1&DCSIST-0&GPRSCSIST-0&MCSIST-0&OCSIST-1&OSMCSIST-1&TCSIST-1&VTCSIST-0&CSP-6&NAM-0&TSMO-0&SCHAR-4&PWD-0000&OFA-0&OICK-50&HOLD-1&MPTY-1&CLIP-1&CFU-1&CFB-1&CFNRY-1&CFNRC-1&BAOC-1&CAW-1&SOCFU-1&SOCFB-1&SOCFRY-1&SOCFRC-1&SODCF-0&SOSDCF-4&SOCB-0&SOCLIP-0&SOCLIR-0&SOCOLP-0;

while IFS='&' read line a b c d e f g h i j k l m n o p
do	print $o
done<input.txt

while IFS='&' read line
do	PRINT_NEXT=false
	C=0
	ARGS=($(echo $line))
	for a in ${ARGS[@]};do
		((C++))
		[ $a = CSP ] && print ${ARGS[$C]} && break
	done
done<input.txt

sed -n 's/.*&\(CSP[^&]*\).*/\1/p' 1x.txt