Shell Programming and Scripting

fname="ebcdic.f0633.cmp_ebcdic.f0633.bin"
fnametmp=${fname#*[_.](V|v|F|f)}
parse=${fnametmp%%[_.](ENC|enc|CMP|cmp|BIN|bin)}}
echo FLRECL=$parse

 
parse=$(echo $fname | sed 's/[^0-9]*\([0-9][0-9]*\)[^ ]*/\1/')
echo FLRECL=$parse

fname="reddogssamsfile1.f0633.bin"
fnametmp=${fname#*[_.](V|v|F|f)}
parse=$(echo $fname | sed 's/[^0-9]*\([0-9][0-9]*\)[^ ]*/\1/')
echo FLRECL=$parse

echo "reddogssamsfile1.f0633.bin" | sed 's/.*f\([^.][^.]*\)[.].*/\1/'

echo "samplefile1.f0633.bin" | sed 's/.*\.[a-z]*\([0-9][0-9]*\)\.[bin|cmp|enc]/\1/'

0633in