Date: Mon, 21 Jun 2010 21:21:10 +0800 From: Aiza <aiza21@comclark.com> To: =?ISO-8859-1?Q?Samuel_Mart=EDn_Moro?= <faust64@gmail.com> Cc: "questions@freebsd.org" <questions@freebsd.org> Subject: Re: .sh for loop Message-ID: <4C1F6746.4050400@comclark.com> In-Reply-To: <AANLkTinB6FkugAD0GXlF3t-n5dbX39nstbxSxlCxiHje@mail.gmail.com> References: <4C1F4B4C.2000006@comclark.com> <AANLkTinB6FkugAD0GXlF3t-n5dbX39nstbxSxlCxiHje@mail.gmail.com>
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Samuel Martín Moro wrote: > it seems to work > > your main error is to use ${found_name} instead of ${name}. > also, you do not set ${group} in your example. > and, not essential, but test -z before adding useless spaces. > correcting that, I had it working perfectly. > > h2g2:~# cat test > path=/dev > group=tty > for name in "${path}/${group}"* > do > [ -z "${found_list}" ] && found_list="${name}" || > found_list="${found_list} ${name}" > done > echo "found list: $found_list" > h2g2:~# sh test > found list: /dev/ttyU0 /dev/ttyU0.init /dev/ttyU0.lock /dev/ttyd0 > /dev/ttyd0.init /dev/ttyd0.lock /dev/ttyp0 /dev/ttyp1 /dev/ttyp2 > /dev/ttyp3 /dev/ttyp4 /dev/ttyp5 /dev/ttyp6 /dev/ttyp7 /dev/ttyv0 > /dev/ttyv1 /dev/ttyv2 /dev/ttyv3 /dev/ttyv4 /dev/ttyv5 /dev/ttyv6 > /dev/ttyv7 /dev/ttyv8 /dev/ttyv9 /dev/ttyva /dev/ttyvb /dev/ttyvc > /dev/ttyvd /dev/ttyve /dev/ttyvf > h2g2:~# > Ok lets say that group had a value in it that was not found. How do i identify that condition?
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