Difference: LHCbSoftwareTrainingBasics (92 vs. 93)

Revision 932014-07-30 - ChristopherRJones

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META TOPICPARENT name="LHCbSoftwareTutorials"
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Choice of shell

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By default, all new accounts for on lxplus are configured to use bash shell. LHCb users are encouraged to change this to the tcsh shell (which was the lxplus default until 15th March 2011), an enhanced version of csh, however LHCb setup scripts are also available for the Bourne family of shells: sh, bash, ksh, zsh. There are subtle and not-so-subtle differences in the functionality of the different shells, and for scripting there are major differences between (t)csh and Bourne-type shells. A useful short summary can be found in:
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By default, all new accounts for on lxplus are configured to use bash shell. An alternative shell is tcsh shell (which was the lxplus default until 15th March 2011), an enhanced version of csh. LHCb setup scripts are available for both the Bourne family of shells: sh, bash, ksh, zsh and (t)csh. There are subtle and not-so-subtle differences in the functionality of the different shells, and for scripting there are major differences between (t)csh and Bourne-type shells. A useful short summary can be found in:
 
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A user may redefine the default shell on lxplus by going to https://account.cern.ch/account/Management/MyAccounts.aspx, navigate to "Services" then Linux and AFS services (you will need to login using your CERN username and password). In general, unless you have a strong preference, stick to tcsh as this is better tested.
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A user may redefine the default shell on lxplus by going to https://account.cern.ch/account/Management/MyAccounts.aspx, navigate to "Services" then Linux and AFS services (you will need to login using your CERN username and password).
  In what follows, <script>.[c]sh is used as shorthand for:
 
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