Thaum koj tsis xav kom leej twg pom cov ntaub ntawv koj rho tawm
Shred yog ib ntawm plaub cov lus txib Linux uas zoo ib yam tab sis tsis zoo li qub: zom, so, rho tawm, thiab tshem tawm.
Koj siv cov ntaub ntawv thaum koj xav rho tawm ib daim ntawm cov ntaub ntawv mus tas li. Cov ntaub ntawv, uas koj taw qhia, yog sau ntawm 1s thiab 0s ntau zaus, uas tas mus li cov ntaub ntawv. Qhov no tsis zoo li lwm cov lus txib zoo sib xws uas tshem cov ntaub ntawv tab sis cia nws rov qab ua tau rau qee kis.
Nrog cov lus sam thiaj hais, koj tuaj yeem muab cov ntaub ntawv me me thaum twg koj xav tau. Nws yog ib txoj hauv kev yooj yim los lwv cov ntaub ntawv koj tsis xav kom leej twg tuaj yeem muaj peev xwm ua tsis tau. Puas.
Txhawb lo lus
shred [xaiv] ntaub ntawv [...]Cov Kev Xaiv Thaum Siv Cov Lus Cog Tseg
Siv cov lus txib Shred los sau cov ntaub ntawv teev tseg dua thiab ua rau nws nyuaj lossis tsis yooj yim rau cov cuab yeej kim heev lossis software kom rov qab tau cov ntaub ntawv. Cov kev xaiv muaj xws li:
- -f hloov hloov tau cia sau ntawv yog xav tau
- -n (iterations = N) overwrites N lub sij hawm siv lub neej ntawd, uas yog peb zaug
- -s (loj = N =) qhia cov naj npawb ntawm bytes rau zom
- -u truncates thiab tshem tawm ntaub ntawv tom qab overwriting
- -v qhia txog cov ntaub ntawv qhia txog kev kawm
- -x doesn 't round tej ntaub ntawv loj li mus rau tom qab tag nrho block
- -z ntxiv qhov kawg overwrite nrog zeros los nkaum shredding
- -u tshem cov ntaub ntawv tom qab overwriting
Cov piv txwv ntawm Shred Command
Sau cov npe ntawm cov ntaub ntawv uas koj xav muab rau cov npe, siv cov nram qab no:
muab fileABC.text file2.doc file3.jpgYog tias koj ntxiv qhov kev xaiv -u, cov ntaub ntawv teev tseg raug muab rho tawm thiab tshem tawm tau chaw seem rau koj lub computer.
shred -u fileABC.text file2.doc file3.jpgCov Chaw Uas Tsis Muaj & Kev Ua Haujlwm
Cov khoom txig ua rau lub tswv yim tseem ceeb-uas cov ntaub ntawv muaj peev xwm overwrites cov ntaub ntawv nyob rau hauv qhov chaw. Qhov no yog kev cai, tab sis qee cov ntaub ntawv cov tshuab tsis txaus siab no assumption. Cov hauv qab no yog cov qauv ntawm cov ntaub ntawv cov ntaub ntawv uas yog qhov uas siv tsis zoo:
- Cov ntaub ntawv teev los yog sau ua ntaub ntawv xov xwm, xws li cov khoom siv AIX thiab Solaris (thiab JFS, ReiserFS, XFS, thiab Ext3)
- Cov ntaub ntawv sau cia uas sau cov ntaub ntawv rov qab thiab ua tau txawm tias qee tus sau tsis tiav, xws li RAID -tawm ntaub ntawv
- Cov ntaub ntawv uas ua rau snapshots, xws li Network Appliance's NFS neeg rau zaub mov
- Cov ntaub ntawv uas cache hauv qhov chaw ib ntus, xws li NFS version 3 cov neeg tau txais kev pab
- Compressed file systems
Tsis tas li ntawd, cov ntaub ntawv thaub qab thiab tej thaj chaw deb tsom iav yuav muaj cov ntawv luam ntawm cov ntaub ntawv uas tsis tuaj yeem raug tshem tawm, thiab qhov ntawd yuav cia tau muab cov ntaub ntawv shredded kom zoo tom qab.