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Re: command for swapping of two files or two dirs?
From: |
Alex fxmbsw7 Ratchev |
Subject: |
Re: command for swapping of two files or two dirs? |
Date: |
Fri, 26 Mar 2021 21:24:48 +0100 |
#!/usr/bin/gawk -f
BEGIN { if ( ARGC < 3 ) exit
RS = "\0" ; FS = "<no!exist>" ; OFS = ORS = ""
}
{ save[FILENAME] = save[FILENAME] $0 RT }
END {
print save[ARGV[1]] >ARGV[2]
print save[ARGV[2]] >ARGV[1]
}
didnt test also
On Fri, Mar 26, 2021 at 9:21 PM Alex fxmbsw7 Ratchev <fxmbsw7@gmail.com> wrote:
>
> swap() { declare t=$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
> > >
- command for swapping of two files or two dirs?, Peng Yu, 2021/03/26
- Re: command for swapping of two files or two dirs?, Alex fxmbsw7 Ratchev, 2021/03/26
- Re: command for swapping of two files or two dirs?, Alex fxmbsw7 Ratchev, 2021/03/26
- Re: command for swapping of two files or two dirs?,
Alex fxmbsw7 Ratchev <=
- Re: command for swapping of two files or two dirs?, Greg Wooledge, 2021/03/26
- Re: command for swapping of two files or two dirs?, Alex fxmbsw7 Ratchev, 2021/03/26
- Re: command for swapping of two files or two dirs?, Peng Yu, 2021/03/26
- Re: command for swapping of two files or two dirs?, Alex fxmbsw7 Ratchev, 2021/03/26
- Re: command for swapping of two files or two dirs?, Eli Schwartz, 2021/03/26
- Re: command for swapping of two files or two dirs?, Alex fxmbsw7 Ratchev, 2021/03/26
- Re: command for swapping of two files or two dirs?, Reuti, 2021/03/26
- Re: command for swapping of two files or two dirs?, Alex fxmbsw7 Ratchev, 2021/03/26
- Re: command for swapping of two files or two dirs?, Peng Yu, 2021/03/26
- Re: command for swapping of two files or two dirs?, Reuti, 2021/03/26