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to search for a particular character in a word

 
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# 1  
Old 10-03-2008
to search for a particular character in a word
Hi
I would like to accept in a string from user like
username/pwd@dbname
suppose the user does not input @ then i should throw an error that @ symbol missing . How to achieve this

Thanks in advance
Suresh
# 2  
Old 10-04-2008
you can use this
Code:
 
echo "enter username and password"
read var
echo "$var"|grep "@" >> /dev/null
if [ $? -ne 0 ];then echo "no \"@\" found";else echo "\"@\" found";fi

# 3  
Old 10-04-2008
Quote:
Originally Posted by vidyadhar85
you can use this
Code:
 
echo "enter username and password"
read var
echo "$var"|grep "@" >> /dev/null
if [ $? -ne 0 ];then echo "no \"@\" found";else echo "\"@\" found";fi

The use of grep is not necessary i.e
Code:
#!/bin/bash

read -p "Enter username and password: " var
if [[ $var =~ "@" ]]
then
   echo 'found @'
else
   echo 'no @ found'
fi

# 4  
Old 10-04-2008
the use of regular expression in bash =~ is also not necessary
Code:
 case $input in *@*) 
    echo "there"
    echo "do something here"
    ;;
 esac

# 5  
Old 10-06-2008
Thanks guys for
# 6  
Old 10-06-2008
Thanks guys for ur replies
# 7  
Old 10-07-2008
Sorry for asking late actually i need to check for / also apart from @
I am using
echo "$var"|grep "@" >> /dev/null
as this worked for me

if i do like
echo "$3"|grep "\/*@" >> /dev/null
i am not getting desired result

is there another way
Thanks in advance
 
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