$ file guitar* guitar.png: information guitar.png-save: JPEG picture information, JFIF normal 1.01, decision (DPI), density 72x72, section size 16, Exif Commonplace: [TIFF image data, little-endian, direntries=5, xresolution=74, yresolution=82, resolutionunit=2, software=GIMP 2.10.8, datetime=2019:02:04 18:48:41], progressive, precision 8, 512x512, elements 3
The shredded file is described merely as “information” whereas the copy of the unique file describes the file’s content material with all of the quite a few particulars about its format that you’d usually count on to see.
By default, the shred command will overwrite a file 3 times, however you’ll be able to change this by utilizing the -n possibility (e.g., shred -n 25 guitar.png). The method is surprisingly quick, even if you happen to determine to shred it many instances.
If you wish to shred a file quite a few instances and get some suggestions on what is going on, add the -v possibility as proven under.
