Answer / mahesh gupta

this script is written for bash :
echo Enter the string
read s
echo $s > temp
rvs="$(rev temp)"
if [ $s = $rvs ]
then
echo "it is palindrome"
else
echo " it is not"
fi

Answer / ishita sen

echo Enter the string
read s
echo $s > temp
rvs="$(rcs temp)"
if [ $s = $rcs ]
then
echo "it is palindrome"
else
echo " it is not"
fi

Answer / goutamkumar

len=0
i=1
tag=0
echo -n "Enter a String: "
read str
len=`echo $str | wc -c`
len=`expr $len - 1`
halfLen=`expr $len / 2`

while [ $i -le $halfLen ]
do
c1=`echo $str|cut -c$i`
c2=`echo $str|cut -c$len`
if [ $c1 != $c2 ] ; then
i=$halfLen
tag=1
fi
i=`expr $i + 1`
len=`expr $len - 1`
done

if [ $tag -eq 0 ]
then
echo "String is Palindrome"
else
echo "String is not Palindrome"
fi

Answer / sudhir

#!/bin/ksh

i=1
tag=0

print -n "Enter a String:"
read str
len=`echo $str | wc -c`
if [[ $len -eq 1 ]]
then
print "Enter a valid string"
exit 2;
fi

let len=len-1
let halflen=len/2;

while [[ $i -le $halflen ]]
do
c1=`echo $str | cut -c $i`
c2=`echo $str | cut -c $len`

if [[ $c1 != $c2 ]]
then
tag=1;
fi
i=`expr $i + 1`
len=`expr $len - 1`
done

if [ $tag -eq 0 ]
then
echo "String is Palindrome"
else
echo "String is not Palindrome"
fi

give me some website where i can get unix and testing meterials

1 Answers  

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What is difference between bash and shell?

1 Answers  

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Script S1 (which copies .dat files from one directory1 to another directory2) run continuously. Write Script S2 which kills S1 first, compresses all .dat files in directory1 and directory2 successfully, re-run Script S1 and stops self i.e. S2.

2 Answers   IBM, TCS,

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What is awk in shell scripting?

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Hi, I want to practise Unix korn shell scripting which i learnt 2 yr bfr. plz suggest software i can use to practise.

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What language is bash written in?

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What lives in a shell?

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how to get part of string variable with echo command only?

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What is the conditional statement in shell scripting?

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A file has multiple records each having three 30-bit long fields(field1,field2,field3).There is also a lookup file,LOOK_UP.dat.Now, we need to consider only the last ten digits of field1 and lookup the file LOOK_UP.dat. If there a match then field2 and field3 should replaced with corresponding data from the lookup file. otherwise that particular record,for which there is no match, should be stored in a seperate file.

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What is console line?

1 Answers  

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what are special characters and explain how does text varies by the usage of single quotes,double quotes and back quotes?

1 Answers  

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