Scommands

From GridInfo

1 Introduction
2 Example Scommands
3 Metadata Scommands
4 Installation
5 Environment setup
- 5.1 .MdasEnv
- 5.2 .MdasAuth
6 External links

Introduction

The Scommands are a set of unit line commands that provide direct access to the SRB. Often they are direct parallels of unix/linux commands, but are prefixed with a capital S. Examples of parallel commands are Sls and Smkdir. Other commands are parallels of unix ftp commands, such as Sput and Sget.

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Example Scommands

Among the most useful of the Scommands are

Sls: Lists the contents of an SRB collection, analogous to the unix ls command (SRB man page reference)
Sput: Put a file into the SRB (SRB man page reference)
Sget: Get a file from the SRB (SRB man page reference)
Scd: Change the SRB collection you are working within, analogous to the unix cd command (SRB man page reference)
Scp: Copy a file within the SRB, analogous to the unix cd command (SRB man page reference)
Serror: Gives a description of an SRB error associated with an error code (SRB man page reference)
Sinit: Initiates an SRB session. (SRB man page reference)
Sexit: Ends an SRB session, and clears up all hidden files created in the session. (SRB man page reference)
Smkdir: Creates an SRB collection, the equivalent of the unix directory. This command is the equivalent of the unix mkdir command. (SRB man page reference)
Smv:
Spasswd: Changes your SRB password. It will automatically update the value within the .MdasAuth file. It is the equivalent of the unix passwd command. (SRB man page reference)
Spwd: Prints the current SRB working directory, equivalent of the unix pwd command. (SRB man page reference)
Srm: Removes a file within the SRB, equivalent to the unix rm command. (SRB man page reference)
Srmdir: Removes a collection within the SRB, equivalent to the unit rmdir command. (SRB man page reference)
Schmod: For changing access permission for files and collections within the SRB. It is not really analogous to the unix chmod command. (SRB man page reference)

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Metadata Scommands

There are a few metadata Scommands. These include:

Sannotate: inserts or changes annotations on data. (SRB man page reference)
Smeta: inserts or changes metadata. (SRB man page reference)

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Installation

The Scommand can be built as part of a complete SRB install, or as an client-only installation. The Scommand client package is available for installation from the main SRB web site: http://www.sdsc.edu/srb/tarfiles/SRB3_4_0client.tar.

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Environment setup

On a unix/linux system, you need to set up two files within a directory called .srb: .MdasEnv and .MdasAuth

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`.MdasEnv`

mdasCollectionName '/home/<username>.<domain_name>'
mdasCollectionHome '/home/<username>.<domain_name>'
mdasDomainName '<domain_name>'
mdasDomainHome '<domain_name>'
srbUser '<username>'
srbHost '<host computer>'
srbPort '<port number>'
defaultResource '<default vault name'
AUTH_SCHEME 'ENCRYPT1' or 'PASSWD_AUTH' or 'GSI_AUTH'

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