ls 
cat file1.cc | grep char | grep c > out 
cat file1.cc | grep char | grep c > out 
cat file1.cc | grep char | grep c > out 
cat file1.cc | grep char | grep c > out 
cat file1.cc | grep char | grep c > out 
cat file1.cc | grep char | grep c > out 
cat file1.cc | grep char | grep c > out 
cat file1.cc | grep char | grep c > out 
cat file1.cc | grep char | grep c > out 
echo /d*/* | grep k
echo /d*/* | grep k
echo /d*/* | grep k
echo /d*/* | grep k
echo /d*/* | grep k
ls none | grep ppp
ls none | grep ppp
ls none | grep ppp
ls 
ls 
ls 
ls 
ls 
ls 
ls