read a file line by line and assign the values to variable as comma separated-CodePudding

I have the following a.txt file:

abc,
def,
ghi

I want to read it line-by-line, and store in a varibale as comma seperated values

var1=abc,def,ghi

i am new to shell script pls help

My try:

name="file.txt"
while IFS=read -r line
do
    names=`echo $line`
done < "name"

it is displaying only value ghi to varibale

CodePudding user response：

You're not concatenating, you're replacing the names variable each time through the loop.

There's no need to use echo when assigning the variable.

name="file.txt"
names=
while IFS=read -r line
do
    names="$names$line"
done < "name"