Giorgos Keramidas wrote: > On 2002-01-21 09:22:08, [EMAIL PROTECTED] wrote: > >>5) In -current would it be possible to have a few command line >>switches added to certain userland utilities? I noticed -h made it >>into `ls` now, but `cp` still doesn't have -a or -x which I used to >>use all the time in Linux. I know -a isn't a big deal but - x was >>definitely nice from time to time. >> > > What does the -a or -x option do for the ls(1) command of Linux? > Perhaps equivalent options do already exist in FreeBSD ls(1). >
Sorry for the confusion there :-) The -a and -x options are meant for cp(1). The -a (--archive) option in cp(1) for linux (which I am fairly certain is the gnu version) is essentially an easy way to safely do -dpR automatically. So effectively -a (--archive) preserves links, tries to preserve permissions, and also does a recursive copy. The -x (--one-file-system) option in cp(1) for linux says that if you have multiple file systems mounted on top of / and you do a `cp -ax / /mnt/copy/of/root/.` it should only copy the directory stubs for the mounts instead of the mounts themselves. I have found both of these options to be extremely useful at times. > >>`date` having a --date option to tell you when a specified date is >>in Linux is also very nice. Just some thoughts. >> > > If I haven't misunderstood you on this, FreeBSD's date(1) can already > do what you want, although I have to admit that it works a bit > differently than Linux's date(1). > > I've recently used date(1) -j and -f options to convert arbitrary > dates to the local timezone in a script I wrote to print the > modification date of problem reports. You might want to check the > scripts at: > > http://people.FreeBSD.org/~keramida/pr/feedback/ > > for samples of using date(1) to convert between timezones and date > representations. A small example that will probably help you > understand how this is done (combined with the description of the -j > and -f options in the date(1) manual page) is shown below: > > hades!charon:[/home/charon]% date '+%s => %T %Z' > 1011645430 => 22:37:10 EET > hades!charon:[/home/charon]% TZ=UTC date -j -f '%s' 1011645328 '+%s => %T %Z' > 1011645328 => 20:35:28 GMT > Again, sorry for the misunderstanding and not providing enough information upfront. In linux date(1) is the gnu version of date, which means you can do the following `date --date 'Jan 22 2002'` and it would output the following: Tue Jan 22 00:00:00 CST 2002 Or I could do a `date --date '2 days ago'` and it would output: Sun Jan 20 00:46:30 CST 2002 Again, this option might not be the most useful thing in the world but I know that I have used it many times at home and at work to make scripts less complicated. > Cheers, > > -- > Giorgos Keramidas . . . . . . . . . keramida@{ceid.upatras.gr,freebsd.org} > FreeBSD Documentation Project . . . http://www.freebsd.org/docproj/ > FreeBSD: The power to serve . . . . http://www.freebsd.org/ > > Thank you for the response and let me know if you need any further information to be able to tell what the options I was refering to for cp(1) and date(1) actually do. Jordan To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
