Join Lines of Text File Together
This page answers questions like these:
- How to join lines of a text file together and put a separator between each line?
- How to join lines of a text file together with a separator?
- How to join lines of a text file together without a separator?
Join Lines of Text File Together without a Separator:
tr -d '\n\r' < FILE1 > FILE2
- Get all lines of text file FILE1, join them together, and write the result to file FILE2.
- Pros: Fast. Works on text files from Unix, Linux, DOS, Windows, and Mac.
- Cons: tr cannot do in-file replacement, i.e. it requires the output file FILE2 to be different from the input file FILE1.
Join Lines of Text File Together with a Separator:
sed -i ':a;N;s/\n/SEPARATOR/;ba' FILE
- Join all lines of a text file FILE together with string SEPARATOR between each line.
- Pros: The string SEPARATOR can be of any length. The -i option to sed does in-file replacement. You can also write to stdout or another file by removing the -i option.
- Cons: Slow on large files.
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