Determine if variable is the Server component of UNC Post: 302881500

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Top Forums Shell Programming and Scripting Determine if variable is the Server component of UNC Post 302881500 by Festus Hagen on Monday 30th of December 2013 01:13:33 AM

12-30-2013

Registered User

Determine if variable is the Server component of UNC

Hi all,

Using sh/csh, unfortunately shell scripts are not my strong suit.

Trying to write a script that gets called from a program for pre-processing.
The program passes individual components of a UNC (//server/path1/path2/filename).

Thus the unc path of: //server/path1/path2/filename, is 4 calls to myscript with each call having a single parameter of:
//server
//server/path1
//server/path1/path2
//server/path1/path2/filename

I need to be able to determine if the current component is the Server component or not. ie: //server not //server/blah.

Figured that would be easy ... Something simple like:

Code:

RESULT=`echo "$1" | sed -e '/^\/\/.+\//p'`
if [ ! "$RESULT" ]; then
  echo "Server Component"
else
  echo "Path components"
fi

should get it done, Obviously I was wrong.

How can I go about this or what am I doing wrong?

The Server component will always begin with two slashes followed by a name, no trailing slash.
Non server components will always have two leading slashes, the server name followed by a slash ... and more.
If it does not start with two leading slashes it should be completely ignored.

Thanks

-Enjoy
fh : )_~

Festus Hagen

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shift

shift(1)                                                           User Commands                                                          shift(1)

NAME

       shift - shell built-in function to traverse either a shell's argument list or a list of field-separated words

SYNOPSIS

   sh
       shift [n]

   csh
       shift [variable]

   ksh
       * shift [n]

DESCRIPTION

   sh
       The positional parameters from $n+1 ... are renamed $1 ... . If n is not given, it is assumed to be 1.

   csh
       The  components of argv, or variable, if supplied, are shifted to the left, discarding the first component. It is an error for the variable
       not to be set or to have a null value.

   ksh
       The positional parameters from $n+1 $n+1 ... are renamed $1 ..., default n is 1. The parameter n can  be  any  arithmetic  expression  that
       evaluates to a non-negative number less than or equal to $#.

       On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:

       1.  Variable assignment lists preceding the command remain in effect when the command completes.

       2.  I/O redirections are processed after variable assignments.

       3.  Errors cause a script that contains them to abort.

       4.  Words,  following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
           able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation  are  not
           performed.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       csh(1), ksh(1), sh(1), attributes(5)

SunOS 5.10                                                          15 Apr 1994                                                           shift(1)