Re: Sorting a device list
Peter Steele wrote: Can anyone recommend a quick and dirty way to sort a device list? For example, if I do this: I need to skip the device prefix before applying the -g option. Something like this works: ls /dev/ad*|sort -g -k 1.8 /dev/ad4 /dev/ad6 /dev/ad8 /dev/ad10 but this assumes the device name is just two characters long. I want a quick way to sort a generic device list like this, considering only the numeric part of the device for the key. Is there a quick and dirty way to do this or do I need to pipe it into a perl script or something? You can use sed to insert a sepcial character before the first digit, use sort with this special character as field delimiter, and then remove the special character with another call to sed. The following pipeline does it: sed -e 's/\([0-9]\)/@\1/' | sort -t @ -n -k 2 | sed -e 's/@//' (This assumes `@' does not appear in the names of the devices you are working with.) Hope this helps! -- Michaël ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: Sorting a device list
Oliver Mahmoudi wrote:
> you can try to delete the /dev/ad10 entry with sed and then just
> append it to the end manually using the printf(1) utility like so:
>
> # ls /dev/ad* | sed s/"\/dev\/ad10"// | grep "/dev/ad" && printf
> "/dev/ad10\n"
Or strip the non-numerics from the beginning of each line, and put
them back after sorting:
# pfx=/dev/ad ; ls -d1 ${pfx}* | sed "s;$pfx;;" | sort -n | sed "s;^;$pfx;"
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RE: Sorting a device list
I ended up using ls /dev/ad*|sort -g -k1.8 Not quite as generic as I wanted but it works... From: Oliver Mahmoudi [mailto:olivermahmo...@gmail.com] Sent: Sunday, November 29, 2009 10:36 AM To: Peter Steele Cc: freebsd-questions@freebsd.org Subject: Re: Sorting a device list you can try to delete the /dev/ad10 entry with sed and then just append it to the end manually using the printf(1) utility like so: # ls /dev/ad* | sed s/"\/dev\/ad10"// | grep "/dev/ad" && printf "/dev/ad10\n" Does that help? Oliver On Sun, Nov 29, 2009 at 6:56 AM, Peter Steele mailto:pste...@maxiscale.com>> wrote: I had tried that. It doesn't work: # ls -d1 /dev/ad* | sort -n /dev/ad10 /dev/ad4 /dev/ad6 /dev/ad8 I want the ad10 to appear last... -Original Message- From: Giorgos Keramidas [mailto:keram...@ceid.upatras.gr<mailto:keram...@ceid.upatras.gr>] Sent: Saturday, November 28, 2009 4:31 PM To: Peter Steele Cc: freebsd-questions@freebsd.org<mailto:freebsd-questions@freebsd.org> Subject: Re: Sorting a device list On Sat, 28 Nov 2009 11:48:18 -0600, Peter Steele mailto:pste...@maxiscale.com>> wrote: > Can anyone recommend a quick and dirty way to sort a device list? For > example, if I do this: > > ls /dev/ad* | sort > > I get something like this: > > /dev/ad10 > /dev/ad4 > /dev/ad6 > /dev/ad8 Just use `sort -n': ls -d1 /dev/ad* | sort -n It should work fine even when there are non-numeric prefix strings. ___ freebsd-questions@freebsd.org<mailto:freebsd-questions@freebsd.org> mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org<mailto:freebsd-questions-unsubscr...@freebsd.org>" ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: Sorting a device list
you can try to delete the /dev/ad10 entry with sed and then just append it to the end manually using the printf(1) utility like so: # ls /dev/ad* | sed s/"\/dev\/ad10"// | grep "/dev/ad" && printf "/dev/ad10\n" Does that help? Oliver On Sun, Nov 29, 2009 at 6:56 AM, Peter Steele wrote: > I had tried that. It doesn't work: > > # ls -d1 /dev/ad* | sort -n > /dev/ad10 > /dev/ad4 > /dev/ad6 > /dev/ad8 > > I want the ad10 to appear last... > > -Original Message- > From: Giorgos Keramidas [mailto:keram...@ceid.upatras.gr] > Sent: Saturday, November 28, 2009 4:31 PM > To: Peter Steele > Cc: freebsd-questions@freebsd.org > Subject: Re: Sorting a device list > > On Sat, 28 Nov 2009 11:48:18 -0600, Peter Steele > wrote: > > Can anyone recommend a quick and dirty way to sort a device list? For > example, if I do this: > > > > ls /dev/ad* | sort > > > > I get something like this: > > > > /dev/ad10 > > /dev/ad4 > > /dev/ad6 > > /dev/ad8 > > Just use `sort -n': > >ls -d1 /dev/ad* | sort -n > > It should work fine even when there are non-numeric prefix strings. > > > ___ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscr...@freebsd.org" > ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
RE: Sorting a device list
I had tried that. It doesn't work: # ls -d1 /dev/ad* | sort -n /dev/ad10 /dev/ad4 /dev/ad6 /dev/ad8 I want the ad10 to appear last... -Original Message- From: Giorgos Keramidas [mailto:keram...@ceid.upatras.gr] Sent: Saturday, November 28, 2009 4:31 PM To: Peter Steele Cc: freebsd-questions@freebsd.org Subject: Re: Sorting a device list On Sat, 28 Nov 2009 11:48:18 -0600, Peter Steele wrote: > Can anyone recommend a quick and dirty way to sort a device list? For > example, if I do this: > > ls /dev/ad* | sort > > I get something like this: > > /dev/ad10 > /dev/ad4 > /dev/ad6 > /dev/ad8 Just use `sort -n': ls -d1 /dev/ad* | sort -n It should work fine even when there are non-numeric prefix strings. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
Re: Sorting a device list
On Sat, 28 Nov 2009 11:48:18 -0600, Peter Steele wrote: > Can anyone recommend a quick and dirty way to sort a device list? For > example, if I do this: > > ls /dev/ad* | sort > > I get something like this: > > /dev/ad10 > /dev/ad4 > /dev/ad6 > /dev/ad8 Just use `sort -n': ls -d1 /dev/ad* | sort -n It should work fine even when there are non-numeric prefix strings. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
