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Edit: /usr/share/Modules/init/ksh-functions/module

unset _mlshdbg;
# disable shell debugging for the run of this init file
if [ "${MODULES_SILENT_SHELL_DEBUG:-0}" = '1' ]; then
   # immediately disable debugging to echo the less number of line possible
   case "$-" in
      *v*x*) set +vx; _mlshdbg='vx' ;;
      *v*) set +v; _mlshdbg='v' ;;
      *x*) set +x; _mlshdbg='x' ;;
      *) _mlshdbg='' ;;
   esac;
fi;

# define modules runtine quarantine configuration
export MODULES_RUN_QUARANTINE='LD_LIBRARY_PATH LD_PRELOAD'

# setup quarantine if defined
unset _mlre _mlIFS;
if [ -n "${IFS+x}" ]; then
   _mlIFS=$IFS;
fi;
IFS=' ';
for _mlv in ${MODULES_RUN_QUARANTINE:-}; do
   if [ "${_mlv}" = "${_mlv##*[!A-Za-z0-9_]}" -a "${_mlv}" = "${_mlv#[0-9]}" ]; then
      if [ -n "`eval 'echo ${'$_mlv'+x}'`" ]; then
         _mlre="${_mlre:-}${_mlv}_modquar='`eval 'echo ${'$_mlv'}'`' ";
      fi;
      _mlrv="MODULES_RUNENV_${_mlv}";
      _mlre="${_mlre:-}${_mlv}='`eval 'echo ${'$_mlrv':-}'`' ";
   fi;
done;
if [ -n "${_mlre:-}" ]; then
   _mlre="eval ${_mlre}";
fi;

# define module command and surrounding initial environment (default value
# for MODULESHOME, MODULEPATH, LOADEDMODULES and parse of init config files)
_mlcode=`${_mlre:-}/usr/bin/tclsh /usr/share/Modules/libexec/modulecmd.tcl ksh autoinit`
_mlret=$?

# clean temp variables used to setup quarantine
if [ -n "${_mlIFS+x}" ]; then
   IFS=$_mlIFS;
   unset _mlIFS;
else
   unset IFS;
fi;
unset _mlre _mlv _mlrv

# no environment alteration if the above autoinit command failed
if [ $_mlret -eq 0 ]; then
   eval "$_mlcode"

# redefine module command if compat version has been activated
   if [ "${MODULES_USE_COMPAT_VERSION:-0}" = '1' ]; then
      MODULES_CMD=/usr/share/Modules/libexec/modulecmd-compat
      export MODULES_CMD
      if [ -t 2 ]; then
         _module_raw() { eval `/usr/share/Modules/libexec/modulecmd-compat ksh $*`; }
      else
         module() { eval `/usr/share/Modules/libexec/modulecmd-compat ksh $*`; }
      fi
   fi

# define function to switch between C and Tcl versions of Modules
   switchml() {
      typeset swfound=1
      if [ "${MODULES_USE_COMPAT_VERSION:-0}" = '1' ]; then
         typeset swname='main'
         if [ -e /usr/share/Modules/libexec/modulecmd.tcl ]; then
            typeset swfound=0
            unset MODULES_USE_COMPAT_VERSION
         fi
      else
         typeset swname='compatibility'
         if [ -e /usr/share/Modules/libexec/modulecmd-compat ]; then
            typeset swfound=0
            MODULES_USE_COMPAT_VERSION=1
            export MODULES_USE_COMPAT_VERSION
         fi
      fi

# switch version only if command found
      if [ $swfound -eq 0 ]; then
         echo "Switching to Modules $swname version"
         . /usr/share/Modules/init/ksh
      else
         echo "Cannot switch to Modules $swname version, command not found"
         return 1
      fi
   }

# setup FPATH to get module defined in 'ksh' interactive and non-interactive
   # sub-shells. only set in ksh init script to avoid side effect default FPATH
   # set for 'zsh' shell when it starts.
   _mlinstr=":$FPATH:"
   if [ "${_mlinstr#*:/usr/share/Modules/init/ksh-functions:}" = "$_mlinstr" ]; then
      FPATH=$FPATH${FPATH:+:}/usr/share/Modules/init/ksh-functions
      export FPATH
   fi

_mlinstr=":$PATH:"
   if [ "${_mlinstr#*:/usr/share/Modules/bin:}" = "$_mlinstr" ]; then
      PATH=/usr/share/Modules/bin${PATH:+:}$PATH
      export PATH
   fi

# initialize MANPATH if not set with a value that preserves manpath system
   # configuration even after addition of paths to this variable by modulefiles
   if [ ! -n "${MANPATH+x}" ]; then
      MANPATH=:
      export MANPATH
   fi
   _mlinstr=":`manpath 2>/dev/null`:"
   if [ "${_mlinstr#*:/usr/share/man:}" = "$_mlinstr" ]; then
      if [ "$MANPATH" = ':' ] || [ "$MANPATH" = '' ]; then
         _mlpathsep=''
      else
         _mlpathsep=:
      fi
      MANPATH=/usr/share/man$_mlpathsep$MANPATH
      export MANPATH
      unset _mlpathsep
   fi
   unset _mlinstr
fi

unset _mlcode _mlret

# restore shell debugging options if disabled
if [ -n "${_mlshdbg:-}" ]; then
   set -$_mlshdbg;
   unset _mlshdbg;
fi;

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