10-06-2008
Replace a filename with full path using sed
hi,
i need to replace a line a file with a new raw device location..
original file..
/opt/sybase/ASE1502/ASE-15_0/bin/dataserver \
-d/data/TST_AKS1/sybdevices/master.dat \
-e/logs/sybase/TST_AKS1/SFO_TST_AKS1.log \
-c/apps/sybase/ASE1502/ASE-15_0/TST_AKS1.cfg \
-M/apps/sybase/ASE1502/ASE-15_0 \
i need to change -d value to /dev/vx/rdsk/sandg-100/raw200-01
so new file should look like
/opt/sybase/ASE1502/ASE-15_0/bin/dataserver \
-d/dev/vx/rdsk/sandg-100/raw200-01 \
-e/logs/sybase/TST_AKS1/SFO_TST_AKS1.log \
-c/apps/sybase/ASE1502/ASE-15_0/TST_AKS1.cfg \
-M/apps/sybase/ASE1502/ASE-15_0 \
i tried using sed
i set the new file name in a varaiable
export mydev=/dev/vx/rdsk/sandg-100/raw200-01
sed s/^-d.*/$mydev/g
it didn't work..
any idea how to make work, it would be nice if i can use a shell variable inside sed command to replace the value...
i even tried awk, but didn't work either
awk '{ if ($1 ~= "-d") print $0 else print $mydevice }' <filename
thanks
AK
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LEARN ABOUT MOJAVE
dbix::class::storage::dbi::sybase::ase::nobindvars
DBIx::Class::Storage::DBI::Sybase::ASE::NoBindVars(3) User Contributed Perl Documentation DBIx::Class::Storage::DBI::Sybase::ASE::NoBindVars(3)
NAME
DBIx::Class::Storage::DBI::Sybase::ASE::NoBindVars - Storage::DBI subclass for Sybase ASE without placeholder support
DESCRIPTION
If you're using this driver then your version of Sybase or the libraries you use to connect to it do not support placeholders.
You can also enable this driver explicitly using:
my $schema = SchemaClass->clone;
$schema->storage_type('::DBI::Sybase::ASE::NoBindVars');
$schema->connect($dsn, $user, $pass, \%opts);
See the discussion in "Using ? Placeholders & bind parameters to $sth->execute" in DBD::Sybase for details on the pros and cons of using
placeholders.
One advantage of not using placeholders is that "select @@identity" will work for obtaining the last insert id of an "IDENTITY" column,
instead of having to do "select max(col)" in a transaction as the base Sybase driver does.
When using this driver, bind variables will be interpolated (properly quoted of course) into the SQL query itself, without using
placeholders.
The caching of prepared statements is also explicitly disabled, as the interpolation renders it useless.
AUTHORS
See "CONTRIBUTORS" in DBIx::Class.
LICENSE
You may distribute this code under the same terms as Perl itself.
perl v5.18.2 2013-12-16 DBIx::Class::Storage::DBI::Sybase::ASE::NoBindVars(3)