egrep "\<C\>" *
egrep "C" *
egrep "\<C\>" *
egrep "\<C++\>" *
egrep "\<C\>" *
ls
more hamlet.txt 
egrep scene hamlet.txt 
clear
egrep scene hamlet.txt 
egrep Scene hamlet.txt 
egrep "^Scene" hamlet.txt 
more hamlet.txt 
egrep "^(Scene|ACT)" hamlet.txt 
egrep "^Scene|^ACT" hamlet.txt 
more chat.txt 
clear
egrep "^^" chat.txt 
egrep "\^\^" chat.txt 
clear
egrep "\^\^" chat.txt 
egrep "\^_*\^" chat.txt 
egrep "(ha){2,}" chat.txt 
clear
egrep "[ABCDF]" 143.txt
egrep "[ABCDF]" *
clear
cat > grades.txt
egrep "[ABCDF]" grades.txt 
pico grades.txt 
egrep "[ABCDF]" grades.txt 
egrep " [ABCDF]" grades.txt 
egrep "\<[ABCDF]\>" grades.txt 
egrep "\<[ABCDF][+-]?\>" grades.txt 
egrep "\<[ABCDF][+\-]?\>" grades.txt 
more faculty.html 
egrep "([0-9]{3}-){2}[0-9]{4}" faculty.html 
more names.txt
dir
ls
more facnames.txt 
sed -r "s/([0-9]{3}-){2}[0-9]{4}//g" facnames.txt 
sed -r "s/([0-9]{3}-)([0-9]{3}-)([0-9]{4})//g" facnames.txt 
sed -r "s/([0-9]{3}-)([0-9]{3}-)([0-9]{4})/\1 \2 \3/g" facnames.txt 
sed -r "s/([0-9]{3}-)([0-9]{3}-)([0-9]{4})/(\1) \2 . \3/g" facnames.txt