* Re: Notes on bash(1)
1998-12-09 16:19 Notes on bash(1) Jason Price
@ 1998-12-09 16:38 ` Michael Barnes
1998-12-09 17:17 ` Swen Thuemmler
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Michael Barnes @ 1998-12-09 16:38 UTC (permalink / raw)
To: zsh-users
On Wed, Dec 09, 1998 at 11:19:27AM -0500, Jason Price wrote:
> >From zsh-workers:
>
> (Quoting got screwed up... Sorry...)
>
> Forwarded message:
> > > * ${parameter/pattern/string} and ${parameter//pattern/string}
> > > pattern is expanded as per pathname expansion. [munch]
> >
> > [munch]
> > Maybe it can be done quite simply by upgrading the extra flags Sven
> > added for # and % to match internal bits of a parameter's value.
>
> there are a heck of a lot of ${...} modifiers that are wonderfully useful,
> but in my searching through the man pages, I havn't found an equivelent to
> basename /usr/local/bin/mumble -> mumble. I need to pull the basename out
> of path strings quite offten, and I'd like to do so in shell.
>
> Is this ... (wait, this is zsh) How can I do this?
~squid/logs foo=/usr/local/bin/mumble
~squid/logs echo $foo[(ws:/:)-1]
mumble
~squid/logs foo=/usr/local/bin/mumble/
~squid/logs echo $foo[(ws:/:)-1]
mumble
This makes foo an array with the word separator `/' and gives the last
element in that array.
I am sure there are otherways to do this but this works for me.
Mike
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: Notes on bash(1)
1998-12-09 16:19 Notes on bash(1) Jason Price
1998-12-09 16:38 ` Michael Barnes
@ 1998-12-09 17:17 ` Swen Thuemmler
1998-12-09 17:23 ` Bart Schaefer
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: Swen Thuemmler @ 1998-12-09 17:17 UTC (permalink / raw)
To: Jason Price; +Cc: zsh-users
On Wed, 9 Dec 1998, Jason Price wrote:
> there are a heck of a lot of ${...} modifiers that are wonderfully useful,
> but in my searching through the man pages, I havn't found an equivelent to
> basename /usr/local/bin/mumble -> mumble. I need to pull the basename out
> of path strings quite offten, and I'd like to do so in shell.
>
> Is this ... (wait, this is zsh) How can I do this?
Well, it is in the info-pages, section on modifiers. Excerpt:
`h'
Remove a trailing pathname component, leaving the head.
`r'
Remove a trailing suffix of the form ``.'XXX', leaving the
basename.
`e'
Remove all but the suffix.
`t'
Remove all leading pathname components, leaving the tail.
[...]
So:
swen@kreta <~>: foo=/usr/local/bin/mumble
swen@kreta <~>: echo ${foo:t}
mumble
swen@kreta <~>:
Hope this helps.
--Swen
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: Notes on bash(1)
1998-12-09 16:19 Notes on bash(1) Jason Price
1998-12-09 16:38 ` Michael Barnes
1998-12-09 17:17 ` Swen Thuemmler
@ 1998-12-09 17:23 ` Bart Schaefer
1998-12-09 17:44 ` Paul Lew
1998-12-10 10:45 ` Bruce Stephens
4 siblings, 0 replies; 6+ messages in thread
From: Bart Schaefer @ 1998-12-09 17:23 UTC (permalink / raw)
To: Jason Price, zsh-users
On Dec 9, 11:19am, Jason Price wrote:
} Subject: Re: Notes on bash(1)
}
} there are a heck of a lot of ${...} modifiers that are wonderfully useful,
} but in my searching through the man pages, I havn't found an equivelent to
} basename /usr/local/bin/mumble -> mumble. I need to pull the basename out
} of path strings quite offten, and I'd like to do so in shell.
}
} Is this ... (wait, this is zsh) How can I do this?
${${anything::=/usr/local/bin/mumble}:t}
where "anything" is any variable name whose value you don't mind replacing
with the string "/usr/local/bin/mumble". E.g.:
zsh% echo ${${filename::=/usr/local/bin/mumble}:t}
mumble
zsh% echo $filename
/usr/local/bin/mumble
zsh%
--
Bart Schaefer Brass Lantern Enterprises
http://www.well.com/user/barts http://www.brasslantern.com
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: Notes on bash(1)
1998-12-09 16:19 Notes on bash(1) Jason Price
` (2 preceding siblings ...)
1998-12-09 17:23 ` Bart Schaefer
@ 1998-12-09 17:44 ` Paul Lew
1998-12-10 10:45 ` Bruce Stephens
4 siblings, 0 replies; 6+ messages in thread
From: Paul Lew @ 1998-12-09 17:44 UTC (permalink / raw)
To: Jason Price; +Cc: zsh-users
>>>>> "Jason" == Jason Price <gt5076c@cad.gatech.edu> writes:
Jason> there are a heck of a lot of ${...} modifiers that are
Jason> wonderfully useful, but in my searching through the man
Jason> pages, I havn't found an equivelent to basename
Jason> /usr/local/bin/mumble -> mumble. I need to pull the
Jason> basename out of path strings quite offten, and I'd like to
Jason> do so in shell.
Jason> Is this ... (wait, this is zsh) How can I do this?
$ foo=/usr/local/bin/zsh-3.1.5
$ echo $foo:h -- head
/usr/local/bin
$ echo $foo:t -- tail
zsh-3.1.5
$ echo $foo:r -- root
/usr/local/bin/zsh-3.1
$ echo $foo:e -- extension
5
Just like csh can do.
-- Paul 12/09/98 12:43 PM --
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: Notes on bash(1)
1998-12-09 16:19 Notes on bash(1) Jason Price
` (3 preceding siblings ...)
1998-12-09 17:44 ` Paul Lew
@ 1998-12-10 10:45 ` Bruce Stephens
4 siblings, 0 replies; 6+ messages in thread
From: Bruce Stephens @ 1998-12-10 10:45 UTC (permalink / raw)
To: zsh-users
Jason Price <gt5076c@cad.gatech.edu> writes:
> there are a heck of a lot of ${...} modifiers that are wonderfully useful,
> but in my searching through the man pages, I havn't found an equivelent to
> basename /usr/local/bin/mumble -> mumble. I need to pull the basename out
> of path strings quite offten, and I'd like to do so in shell.
>
> Is this ... (wait, this is zsh) How can I do this?
Personally, I use ## and %% operators for this:
i=/usr/local/bin/mumble
echo ${i##*/}
prints mumble. This also works in bash and ksh.
^ permalink raw reply [flat|nested] 6+ messages in thread