UNIX for Dummies Questions & Answers

R1_970804_125318
R1_970804_125404(2)
R1_980322_219282
R1_980301_210651(2)
R1_980301_210651(3)

FILES=`cat namelist.txt`
for F in $FILES
do
...
...
done

 for F in "$FILES"

while read LINE # Note LINE does NOT have a $ here
do
        echo "got line $LINE"
...
done < inputfile

while read line
do
    echo "$line"
    blah blah "$line"
done < namelist.txt

while read F
do
        #to extract the line containing the path by key word CDPFCIS
        OLD_PATH=`egrep CDPFCIS $F`
        #to extract the new path by file name
        NEW_PATH=`egrep $F new_path_list.txt`
        sed -i 's@OLD_PATH@NEW_PATH@g' $F
done < namelist.txt

egrep R1_970804_125404(2) namelist.txt

egrep -F R1_980302_105147(2) namelist.txt