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Re: [ferret_users] what is ferret's limit to the full path name for a netCDF data set
Hi all,
This turned out to be due to the issue of piping a script into Ferret -
this is discussed in these messages:
http://ferret.pmel.noaa.gov/Ferret/Mail_Archives/fu_2004/msg00008.html
http://ferret.pmel.noaa.gov/Ferret/Mail_Archives/fu_2005/msg00790.html
The workaround for this is to either pass the script to Ferret using the
-script startup option, which lets you send arguments to the script as
an added bonus, or to pass the name of a "wrapper" script to Ferret
which calls the desired script
So either
ferret -script my_script_name.jnl [arguments]
or
ferret < wrapper.jnl
where wrapper.jnl contains just a few commands, perhaps just the line:
go my_script_name.jnl
Ansley Manke wrote:
Hi Janeen,
The length is 256 characters. This allows for long local path names
and also long DODS URL's. What version of Ferret are you running? What
is the path you are trying to open? I created this directory and put
a dataset into it, for a path name around 256 characters, and opened
the data successfully.
yes? sp mkdir local_files
yes? sp mkdir datadir
yes? sp mkdir
local_files/datadir/a234567890b234567890c234567890d234567890e234567890f234567890g234567890h234567890i234567890j234567890k234567890l234567890m234567890n234567890o234567890p234567890q23456789034567890r234567890s234567890t234567890u234567890v123456
yes? let abc = {1,2,3}
yes? clobber/file=aa.nc abc
yes? sp cp aa.nc
local_files/datadir/a234567890b234567890c234567890d234567890e234567890f234567890g234567890h234567890i234567890j234567890k234567890l234567890m234567890n234567890o234567890p234567890q23456789034567890r234567890s234567890t234567890u234567890v123456
yes? use
"./local_files/datadir/a234567890b234567890c234567890d234567890e234567890f234567890g234567890h234567890i234567890j234567890k234567890l234567890m234567890n234567890o234567890p234567890q23456789034567890r234567890s234567890t234567890u234567890v123456/aa.nc"
yes? show data
yes? list abc
Janeen wrote:
Hello,
I'm trying to find how long a full path for a data set can be, before
ferret can't handle it.
For example, I know that a path of 126 characters is too long, but 92
is still accepted.
Anyone know what the actual number is?
Janeen
--
~> ~> ~> ~> ~> ~> ~> ~> ~> ~> ~>
Ansley Manke, NOAA/PMEL ansley.b.manke@xxxxxxxx
7600 Sand Point Way NE, Seattle WA
Phone 206-526-6246, FAX 206-526-6744
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