scl(1) General Commands Manual scl(1)

NAME
       scl - Setup and run software from Software Collection environment

SYNOPSIS
       scl   [ ...] 

       scl   [ ...]  

       scl {-l|list} [  ...]

       scl register 

       scl deregister  [force]

DESCRIPTION
       This  manual page documents scl, a program which is an utility for run‐
       ning software packaged as a Software Collection.

       scl utility allows to execute an application which is  not  located  in
       the  filesystem  root  hierarchy but is present in an alternative loca‐
       tion.  This  application  can  still  use  and  benefit  from  software
       installed  in  the  root  filesystem. In order to let an application be
       visible to the system one has to use scl utility as an interface.

        is a script name to execute in a bash environment  before  the
       application  itself  takes in executed. Currently only enable scriptlet
       is mandatory which is needed to update search paths, etc.

       One can enable more Software Collections if needed  and  therefore  one
       can  use multiple collections which are enabled by the left-right order
       as present on scl command-line.

        marks specified Software Collections as enabled. Executes the
       script, which is expected to set proper environment. Executes the .  Control is returned back to the caller with the original  envi‐
       ronment  as  soon  as  the command finishes. If  is '-' (dash)
       then it is read from the standard input.

       Note: if you use  consisting of multiple arguments, you either
       need to use quotes or the  command separator. Everything that follows
       the separator will be considered a command or its argument.

       Note: some commands modify user environment in some way. Those commands
       may potentially break SCLs, as their activation also usually depends on
       env.  modification as well. Typical examples of such  commands  are  su
       and  sudo.  Every collection modifies the environment differently, thus
       more details may be found in the documentation of the  particular  col‐
       lection.

OPTIONS
       -l, list
              Lists all installed Software Collections on the system.

       -l, list   ...
              If  a  collection name is specified then list of installed pack‐
              ages belonging to the collection is listed.

       register 
              If  leads to valid SCL file structure, scl  will  register
              that  as  a  SCL.     directory  needs  to  contain enable
              scriptlet and  root  directory,  to  be  considered  valid  SCL.
               needs to be an absolute path to the collection location.

       deregister  [force]
                will no longer be considered SCL.  If the  was installed locally, then the use of force is needed.i

EXAMPLES
       scl enable example 'less version'
              runs command 'less version' in the environment with collection
              'example' enabled

       scl enable foo bar bash
              runs bash instance with foo and bar Software Collections enabled

       cat mycommand | scl enable baz -
              run set of commands listed in mycommand file in the environment
              with baz Software Collection enabled

       scl -l list all installed collections

       scl -l example
              list  all  packages  within  example  collection  scl   register
              /foo/bar registers new collection with a name bar

       scl deregister bar force
              forces the deregistration of collection bar


       AUTHOR

       scl  was  written  by  Jindrich  Novy  and Jan Zeleny
       



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