~/entwicklung 68> ll ../pkb_test/
total 10
-rw-rw-r--   1 reneeb   bioinf       823 Jan 23 12:33 main.pl
-rw-rw-r--   1 reneeb   bioinf      1605 Jan 23 10:55 test.html
-rw-rw-r--   1 reneeb   bioinf       132 Jan 22 16:43 test.pl
~/entwicklung 69> rm main.pl
main.pl: No such file or directory
~/entwicklung 70>