Split file into multiple small files, separate by the newline symbol

Question

Is there a utility that split file by newline symbol? e.g if a file contains the following lines,

aa
bbb
cccc

If I want to split it to 3 files, the desired output would be:

aa, bbb And cccc (in 3 different files)

I already checked the split command, it only cut file by file sizes, not what I want.

If I don't wrote a utility myself, is there any standard tool to use?

Answer 1

Unless I'm missing something, split does split by line if you use -l switch:

   -l, --lines=NUMBER
          put NUMBER lines per output file

so

split -l 1 inputfile

should do what you want.

Answer 2

awk '{print > $0".txt" }'  inputfile

would create one file per unique line in inputfile named after the content of those lines (with a .txt extension). But beware that when the limit of concurrent open files is reached, some awk implementations will fail.

Or

awk '{f = "output_file." NR; print $0 > f; close(f)}' inputfile

To have numbered output files.

Answer 3

A=0
while IFS= read -r LINE ; do
  printf '%s\n' "$LINE" > newfile$A
  (( A++ ))
done < "$INPUTFILE"