root@caffeinated:/tmp# file decode.txt
DECODE_ME09.txt: PPMD archive data
root@caffeinated:/tmp# ppmd d decode.txt  # 2
Fast PPMII compressor for textual data, variant J, Nov 18 2011
decode.txt already exists, overwrite?: <Y>es, <N>o, <A>ll, <Q>uit?Y
Can`t open file decode.txt
root@caffeinated:/tmp# file decode.txt
decode.txt: empty
root@caffeinated:/tmp# echo test > ppmdtest.txt
root@caffeinated:/tmp# ppmd e ppmdtest.txt # 2
Fast PPMII compressor for textual data, variant J, Nov 18 2011
opening in: -ppmdtest.txt-, out: -ppmdtest.pmd-  ppmdtest.txt:      5 >      9, 14.40 bpb, used:  0.0MB, speed: 5 KB/sec
root@caffeinated:/tmp# file ppmdtest.pmd
ppmdtest.pmd: PPMD archive data
root@caffeinated:/tmp# rm ppmdtest.txt
root@caffeinated:/tmp# ppmd d ppmdtest.pmd # 2
Fast PPMII compressor for textual data, variant J, Nov 18 2011
  ppmdtest.txt:      9 >      5, 14.40 bpb, used:  0.0MB, speed: 5 KB/sec
root@caffeinated:/tmp# cat ppmdtest.txt
test
root@caffeinated:/tmp#