tar mulitple files sometimes one file missing

[thomastang237]

when I uesd remote connect a Android devcie, and then using device.shell(tar -zcvf /sdcard/test/test.tar.gz /sdcard/test/star 07.21star) .Sometimes, one file will be misssing, not included in test.tar.gz. I was compressed 11 files ,but there were 10 files in the test.tar.gz file. and the missing file is the last one compressed file, the output info also showed the file has been compressed.