Unix sed can't read. peculiar issue when using a variable

Question

One line in a control file looks like this: 1039 ZA_BKPF_20170725103534.txt So using space as a delimiter, I am cutting and assigning the filename alone to a variable like below: file=echo "$line" | cut -d " " -f2

and then I use sed: sed -i 1d "$targetDir"/"$file"

but in the log I am getting the below error: I did an echo as well to confirm if the file exists. As you can see, the file exists. but sed says no such file or directory.

• file=$'ZA_BKPF_20170725103534.txt\r'
• echo '/u/applic/data/hdfs1/etl_grmacw/ACDW/source/ZA/ZA_BKPF_20170725103534.txt exists' /u/applic/data/hdfs1/etl_grmacw/ACDW/source/ZA/ZA_BKPF_20170725103534.txt exists
• sed -i 1d $'/u/applic/data/hdfs1/etl_grmacw/ACDW/source/ZA/ZA_BKPF_20170725103534.txt\r' sed: can't read /u/applic/data/hdfs1/etl_grmacw/ACDW/source/ZA/ZA_BKPF_20170725103534.txt: No such file or directory

Is someone familiar with the $'string\r'. why is this happening to my variables. Is that the problem or something else? Can someone help me pls ! Thanks, Hari G