[Dart-dev] [6454] DART/trunk/mpi_utilities/fixsystem: on debian and ubuntu systems / bin/sh is now a link to 'dash'

[nancy at ucar.edu]

Revision: 6454
Author:   nancy
Date:     2013-09-03 05:20:36 -0600 (Tue, 03 Sep 2013)
Log Message:
-----------
on debian and ubuntu systems /bin/sh is now a link to 'dash'
which is a stripped down shell.  on some systems /bin/sh
links to bash; on these it links to dash.  this script now
uses a subset of the shell syntax that works ok for both.
also tested to be ok with ksh and zsh.

Modified Paths:
--------------
    DART/trunk/mpi_utilities/fixsystem

-------------- next part --------------
Modified: DART/trunk/mpi_utilities/fixsystem
===================================================================
--- DART/trunk/mpi_utilities/fixsystem	2013-09-03 09:44:01 UTC (rev 6453)
+++ DART/trunk/mpi_utilities/fixsystem	2013-09-03 11:20:36 UTC (rev 6454)
@@ -37,10 +37,10 @@
 do
 
   # figure out what state the source file is in before we start
-  export bline=`fgrep SYSTEM_BLOCK_EDIT ${f} | grep START | head -n 1`
-  if [[ "`echo $bline | grep COMMENTED_OUT`" != ""  ]]; then
+  export bline="`fgrep SYSTEM_BLOCK_EDIT ${f} | grep START | head -n 1`"
+  if [ "`echo $bline | grep COMMENTED_OUT`" != ""  ]; then
     export before=out
-  elif [[ "`echo $bline | grep COMMENTED_IN`" != ""  ]]; then
+  elif [ "`echo $bline | grep COMMENTED_IN`" != ""  ]; then
     export before=in
   else
     echo ${f} not found, or does not have the right comment string to
@@ -50,13 +50,13 @@
     exit 1
   fi
 
-  if [[ $# == 0 ]]; then
+  if [ $# = 0 ]; then
     # no args given, swap to the other configuration.  deprecated
     # and eventually a single argument will become required.
-    if [[ $before == out ]]; then
+    if [ $before = out ]; then
       export todo=in
       export compiler=non-gfortran
-    elif [[ $before == in ]]; then
+    elif [ $before = in ]; then
       export todo=out
       export compiler=gfortran
     else
@@ -64,16 +64,16 @@
       exit 1
     fi
 
-  elif [[ $# == 1 ]]; then
+  elif [ $# = 1 ]; then
     # single arg: the name of your fortran compiler command
-    if [[ "$1" == help || "$1" == -help || "$1" == --help ]]; then
+    if ([ "$1" = help ] || [ "$1" = -help ] || [ "$1" = --help ]); then
       echo "usage: $0 [ your_fortran_command_name | -help  ]"
       echo "  e.g. $0 gfortran"
       echo "  or   $0 ifort "
       echo "  or   $0 pgf90 "
       echo "  etc."
       exit 1
-    elif [[ "$1" == gfortran ]]; then
+    elif [ "$1" = gfortran ]; then
       export todo=out
     else
       export todo=in
@@ -92,13 +92,13 @@
   fi
   
   # if we are already in the right state, loop to next file
-  if [[ $before == out && $todo == out ]]; then continue; fi
-  if [[ $before == in  && $todo == in  ]]; then continue; fi
-  
+  if ([ $before = out ] && [ $todo = out ]); then continue; fi
+  if ([ $before = in  ] && [ $todo = in  ]); then continue; fi
+ 
   # we do have something do to
 
   # save original copy for backup if one does not already exist.
-  if [[ ! -f ${f}.orig ]]; then
+  if [ ! -f ${f}.orig ]; then
     cp -p ${f} ${f}.orig
   fi
   
@@ -108,13 +108,13 @@
   mv ${f} tempfile
 
   # removing comment chars, enabling interface block code
-  if [[ $todo == in ]]; then
+  if [ $todo = in ]; then
    sed -e '/SYSTEM_BLOCK_EDIT START COMMENTED_OUT/,/SYSTEM_BLOCK_EDIT END COMMENTED_OUT/s/^!//' \
        -e '/\(SYSTEM_BLOCK_EDIT [A-Z][A-Z]*\) COMMENTED_OUT/s//\1 COMMENTED_IN/' tempfile > ${f}
   fi
   
   # adding comment chars, disabling interface block code
-  if [[ $todo == out ]]; then
+  if [ $todo = out ]; then
    sed -e '/SYSTEM_BLOCK_EDIT START COMMENTED_IN/,/SYSTEM_BLOCK_EDIT END COMMENTED_IN/s/^/!/' \
        -e '/\(SYSTEM_BLOCK_EDIT [A-Z][A-Z]*\) COMMENTED_IN/s//\1 COMMENTED_OUT/' tempfile > ${f}
   fi