Read line by line and replace string.

10-02-2014

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Read line by line and replace string.

Hi,

I currently have a problem that I need to read a file line by line.

After I read it line by line there are some commands in which I have to change a specific string.(In my case, I have to make a script that changes all the passwords into hash value)

Here is a sample input

Code:

hostName=TEST123
hostIpAddr=TEST123
hostUserName=test112
hostPassword=test146

HostName=11.111.111
HostIpAddr=12.12.121
UserName=UseR1
Password=UsEr1

I only tried to change the second occurence of Password with this code.

Code:

passNew=`grep 'Password' test.file | awk -F= '{print $2}' | openssl enc -aes-128-cbc -a -salt -pass pass:wtf`

passStr=`grep 'Password' test_dev.param | awk -F= '{print $2}'`

sed 13,/$passStr/{s@$passStr@$passNew@} test.file > test1.file

Any help I cant get so I can loop up? and convert every occurence of passwords to hash?

The sample output must be:

Code:

hostName=TEST123
hostIpAddr=TEST123
hostUserName=test112
hostPassword=JfsjeoOf3001=

HostName=11.111.111
HostIpAddr=12.12.121
UserName=UseR1
Password=Fkjdslkjqksnlkc491/+FDSJLK=

thebennnn

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10-02-2014

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Last Activity: 2 October 2014, 8:55 AM EDT

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This will change all the password that are the same in one execution:

Code:

OIFS="${IFS}"
IFS="="
awk '/^Password|^hostPassword/ {print $0}' test.file | sort | uniq | \
while read key value
do
        echo "Changing -> Key[${key}] Value[${value}]"
        newPassword=$(echo "${value}" | openssl enc -aes-128-cbc -a -salt -pass pass:wtf)
        searchValue="${key}=${value}"
        sed -i 's#^'"${searchValue}"'#'"${key}"'='"${newPassword}"'#g' test.file
done
IFS="${OIFS}"

This uses linux "sed -i", which changes the file "in place".

I hope it helps!

felipe.vinturin

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