Is There a UNIX / Linux unerase / undelete Command?
Q. Is There a UNIX / Linux unerase or undelete command? How do I undelete files under a UNIX / Linux system?
A.. Short answer - no.
There is no "unerase" or "undelete" command in Linux / *BSD / Unix like operating system such as AIX or HP-UX . The best solution is to restore file from a backup. You can also use a data recovery tool but there is no guaranty you will get back the data. Always use following method to avoid problems:
=> Make regular backups and file system snapshots
=> Never ever login as root for non admin related tasks
=> Always use a regular user account for all normal tasks
=> Alias rm / mv / cp command as rm -i / mv -i
alias cp='cp -i'
alias mv='mv -i'
alias rm='rm -i'
=> Make important file copy before editing
=> Use RAID 6 or above hardware card as additional protection for file server
=> Keep files safe from accidental overwriting with noclobber under BASH shell
=> Make a Linux File unchangeable ( unalterable ) so that no one can modify it - including root user
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Discussion on This FAQ
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Tags: AIX, alias, backups, best solution, bsd unix, data recovery, guaranty, hp, hp ux, Linux, linux system, mv, operating system, recovery tool, short answer, snapshots, unerase, UNIX, unix linux ~ Last updated on: March 5, 2008
March 6th, 2008 at 4:08 am
you can also use the -b option when using rm mv or cp
so that there will be a backup if you want to restore it, if now then you can erase it later when you are sure you won’t use it.
March 7th, 2008 at 9:55 am
WRONG: never use “alias rm=’rm -i’”. Gives you the habit to use “rm *” all too often. Can be distastrous on accounts where this alias is not defined. (Own experience
)