Ans:
a=$#
for (( i=1;i<=$a;i++ ))
do
if grep -w $i student
then
grep –A 4 $i student
echo
echo “continue”
read
else
echo “record not found”
fi
done
Write a shell script which will accept three nos. from the keyboard and finds the largest of them.
Ans:
function
greater()
{
echo
“ the nos. are $1 $2 $3 ”
if [ $1 –gt
$2 ] && [ $1 –gt $3 ]
then
echo “the
greatest no. is ” $1
if [ $2 –gt
$1 ] && [ $2 –gt $3 ]
then
echo “the greatest
no. is ” $2
if [ $3 –gt $1 ]
&& [ $3 –gt $2 ]
then
echo “the greatest
no. is ” $3
fi
fi
fi
}
greater $1 $2 $3
Write a shell script to copy one file to another line by line.
Ans:
echo “enter
the file that we need to copy”
read f1
echo “enter
the file to which the data will be copy”
read f2
x=2
for((j=1;j<=$x;j++))
do
head -$j $f1 >>
$f2
read
done
echo “the data successfully
copied from the file”
Write a shell script which will calculate the factorial of an integer entered from the keyboard.
Ans:
function fact()
{
i=1
for((j=1;j<=$i;j++))
do
i=$[ $i*$j ]
done
echo “the
factorial is ” $i
}
fact $1
Write a script which when executed checks out whether
it is a working day or not?
(Note: Working day Mon-Fri)
Ans:
x=$1
case $x in
monday) echo
“it’s a working day”;;
tuesday) echo
“it’s a working day”;;
wednesday) echo “it’s a working day”;;
thursday)
echo “it’s a working day”;;
friday)
echo “it’s a working day”;;
*) echo
“it’s a non-working day”;;
esac
