Use uma combinação de cat
e dd
:
cat LIST_OF_FILES | dd of=OUTPUT_FILE conv=lcase
Um exemplo:
$ cat file1.txt
I am File 1.
$ cat file2.txt
Here is File 2!
$ cat file1.txt file2.txt | dd of=file12.txt conv=lcase
0+1 records in
0+1 records out
29 bytes (29 B) copied, 0,000301417 s, 96,2 kB/s
$ cat file12.txt
i am file 1.
here is file 2!