Bash – Irreversible Remove File

durukan@testserver:~$ shred -n 10 -s 1G -u test.TXT -v
shred: test.TXT: pass 1/10 (random)...
shred: test.TXT: pass 2/10 (db6db6)...
shred: test.TXT: pass 3/10 (aaaaaa)...
shred: test.TXT: pass 4/10 (555555)...
shred: test.TXT: pass 5/10 (ffffff)...
shred: test.TXT: pass 6/10 (random)...
shred: test.TXT: pass 7/10 (492492)...
shred: test.TXT: pass 8/10 (924924)...
shred: test.TXT: pass 9/10 (000000)...
shred: test.TXT: pass 10/10 (random)...
shred: test.TXT: removing
shred: test.TXT: renamed to 00000000
shred: 00000000: renamed to 0000000
shred: 0000000: renamed to 000000
shred: 000000: renamed to 00000
shred: 00000: renamed to 0000
shred: 0000: renamed to 000
shred: 000: renamed to 00
shred: 00: renamed to 0
shred: test.TXT: removed