Re: command for swapping of two files or two dirs?

[Alex fxmbsw7 Ratchev]

swap() { declare t=$SRANDOM$SRANDOM ; [[ $# != 2 ]] && return 1
 mv "$1" "$2$t"
 mv "$2" "$1$t"
 mv "$1$t" "$1"
 mv "$2$t" "$2"
}

didnt test still
On Fri, Mar 26, 2021 at 9:18 PM Alex fxmbsw7 Ratchev <fxmbsw7@gmail.com> wrote:
>
> swap() { declare t= tt= ; [[ $# != 2 ]] && return 1
>  mv "$1" "${t:=/tmp/$SRANDOM}"
>  mv "$2" "${tt:=/tmp/$SRANDOM}"
>  mv "$t" "$2"
>  mv "$tt" "$1"
> }
>
> On Fri, Mar 26, 2021 at 6:11 PM Peng Yu <pengyu.ut@gmail.com> wrote:
> >
> > Hi,
> >
> > I can use mv to program a swap bash script. Or use renameat2(...,
> > RENAME_EXCHANGE) on Linux and renameatx_np(..., RENAME_SWAP) on Darwin
> > to make a swap C program.
> >
> > But since this should be a commonly used function, is there already an
> > existing well-maintained command for this purpose?
> >
> > --
> > Regards,
> > Peng
> >