[peteryuan]

Hey guys,

I have been learning bash scripting these days and for practice I wrote a small bash script to make openfoam usage a little easier (try to).
I call it fcf1, as the title of this thread.
I want to share this with you. Feel free to try it out and modify it. I am a beginner in bash scripting and I know there are a lot of advanced users here. So, if you are interested, please work further on this script and post the improved versions - so that we can learn from each other. I would also be happy if you tell me where I can improve.

cheers!
peter

#!/bin/bash
###############################################################
# this is a script to make FOAM easier to use
# I call it foam command flow no. 1 ==> fcf1
# written by x.yuan
# last change on 2013.11.17
###############################################################
function usage
{
    echo ""
    echo "usage: -h to show this..
    whatever.... 
    "
    echo "
    some message to write .... 
    "
}
function press_enter
{
    echo ""
    echo -n "Press Enter to continue"
    read
    # clear
}
###############################################################
interactive=
filename="default"
while [ "$1" != "" ]; do
    case $1 in
        -f | --file )        shift
                             filename=$1
                             echo "file name is : $filename"
                             ;;
        -i | --interactive)  interactive=1
                             echo "interactive on"
                             ;;
        -h | --help)         usage
                             exit 0
                             ;;
        * )                  usage  # otherwise show help
                             exit 1
    esac
    shift
done
###############################################################
# title:
###############################################################
echo ""
echo ==========================================================
echo "0: FOAM flow control 01"
echo ==========================================================
[ -d constant ] && echo "IN A CASE DIR, GOOD." || exit 1
echo ==========================================================
echo ready to go...
sleep 2
###############################################################
# case dir setup:
###############################################################
cs=n  # like control string
echo -n "1: pyFoamClearCase.py (y or n) > "
read cs
# if $cs == "y"; then  # does not work this way!
if [ $cs = "y" ]; then
    echo yes to clearcase..
    pyFoamClearCase.py ./; press_enter
fi
echo ==========================================================
###############################################################
# pre processing like mesh generation:
###############################################################
# echo -n "2: blockMesh apply (y or n) > "
# read cs
# if [ $cs = "y" ]
# then
#     echo yes to blockMesh
#     blockMesh | tee blockMesh.log
# fi
selection=
until [ "$selection" = "0" ]; do
    echo "2: PRE MENU"
    echo ""
    echo "1 - blockMesh | tee logfile"
    echo "2 - pyFoamDisplayBlockMesh.py <blockMeshDict>"
    echo "3 - checkMesh"
    echo "4 - paraFoam to view the mesh"
    echo ""
    echo "0 - exit loop"
    echo ""
    echo -n "Enter selection: "
    read selection
    echo ""
    case $selection in
        1 ) blockMesh | tee blockMesh.log ; press_enter ;;
        2 ) pyFoamDisplayBlockMesh.py constant/polyMesh/blockMeshDict; press_enter ;;
        3 ) checkMesh ; press_enter ;;
        4 ) paraFoam ; press_enter ;;
        # 0 ) exit ;;  # this exit whole programm!
        0 ) break ;;
        * ) echo "Please enter your selection!"; press_enter
    esac
done
echo ==========================================================
###############################################################
# solver running:
###############################################################
# try to get the string from file:
[ -d system ] && grep "application" system/controlDict || exit 2


solver=
echo -n "3: solver app to use > "
read solver
selection=
until [ "$selection" = "0" ]; do
    echo ""
    echo "3: SOLVER MENU"
    echo ""
    echo "1 - $solver | tee logfile"
    echo "2 - pyFoamPlotRunner.py $solver"
    echo "3 - pyFoamPlotWatcher.py logfile"
    echo "4 - paraFoam to view the results"
    echo ""
    echo "0 - exit loop"
    echo ""
    echo -n "Enter selection: "
    read selection
    echo ""
    case $selection in
        1 ) $solver | tee $solver.log ; press_enter ;;
        2 ) pyFoamPlotRunner.py $solver ; press_enter ;;
        # 3 ) pyFoamPlotWatcher.py PyFoamRunner.$solver.logfile ; press_enter ;;
        3 ) echo dont try that... ;;
        4 ) paraFoam ; press_enter ;;
        0 ) break ;;
        * ) echo "Please enter your selection!"; press_enter
    esac
done
echo ==========================================================
###############################################################
# post processing like data manipulation:
###############################################################
# foamCalc...
# sample...
# yPlusRAS...





###############################################################
echo fcf1 ends here, sir.
echo ==========================================================
echo ""
exit 0
###############################################################

by the way, here is the main source of my learning:

http://linuxcommand.org/writing_shell_scripts.php
filmsbykris.com