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Override options of rm command

 
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Top Forums UNIX for Dummies Questions & Answers Override options of rm command
# 8  
Old 01-12-2012
This sounds like homework. You've already been given everything you needed, too.
# 9  
Old 01-12-2012
no..it is not home work..
i am trying to implement recycle bin in unix..
if you give sugesitions i will accept..to implement recycle bin..

---------- Post updated at 11:26 AM ---------- Previous update was at 11:15 AM ----------

and i need to override the options of rm command.
# 10  
Old 01-12-2012
Since you're not going to be running rm in the first place, there's hardly any need to "override" them as much as "utterly ignore" them.

Code:
function delete
{
        local FILE
        local LAST

        while [ "$#" -gt 0 ]
        do
                if [ "${1:0:1}" = "-" ]
                then
                        shift
                        continue
                fi

                break
        done

        for FILE in "$@"
        do
                if [ -d "$FILE" ]
                then
                        echo "Error:  $FILE is a folder"
                        return 1
                fi
        done

        # You may want to improve on this -- give files unique locations, etc.
        mv "$@" /path/to/backuplocation
}

alias rm=delete

This User Gave Thanks to Corona688 For This Post:
arun508.gatike
# 11  
Old 01-12-2012
Looks like homework to me. Searching for "recycle" on this site produces many similar examples and some detailed assignments.

If you are in the commercial world imho it is much better to have a robust daily backup system (supported with daytime snapshots if you are in a fast-moving environment) rather than trying to intercept the "rm" command.

Just intercepting a free-standing "rm" command is not enough. Even if you ignore applications which delete files without using an "rm" command (they can use a system call), a "mv" can command have a similar effect.
This User Gave Thanks to methyl For This Post:
arun508.gatike
 
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