Compiling cpp files with sh files?

larryburns · 12-18-2014, 02:25 AM

I am having trouble understanding how my code is working. I am new to this project and never learned unix before. My coworker quickly showed me how to run the program but didn't explain how it worked

After making sure all the C++ files compiled properly by running make, he went to the command prompt and typed

Code:

./run.sh list.txt

I took a look at the "run.sh" file. It is below:

Code:

DIR=/directory/scripts/binaries/what

    LIST=$1

    while read PDF
    do 
        echo "HOLD ON ${PDF}..." 
        ./makeInputAX.sh ${PDF} ${PDF} >INPUT/${PDF}.something 
        ${DIR} -AX INPUT/${PDF}.something # I don't want to reveal the actual types of files I'm dealing with, so I called them 'something'
    done < ${LIST}

the "makeInputAX.sh" file is:

Code:

$PDF=1
    echo "THEFILE ABC/{PDF}.something"

and "list.txt" simply contains:

Code:

So I already know that run.sh reads whats inside "list.txt", and assigns "12345" to be the "LIST" variable. I do see "HOLD ON 12345" in the command prompt. What confuses me is that I thought "run.sh" runs first, then calls "makeInputAX.sh", so how can "PDF" be assigned to "list.txt", when that assignment was in "makeInputAX.sh" not "run.sh"?

What also confuses me is that in the command prompt, I then see the outputs from the program, as they were written in the cpp files that are part of the project. However, those files are in a seperate directory, not in "/directory/scripts/binaries/what". I made changes to those cpp files and want to see the new outputs I should get, but I am getting an error:

Code:

could not open the somethingelse file for read

However,

Code:

could not open the ..

is not written anywhere in my C++ code. To fix that, do I need to look in my cpp files or is there something to these sh files that can help?

bigearsbilly · 12-18-2014, 03:23 AM

ask your colleague.
better to ask ASAP than to leave it longer and longer.

don't be afraid to ask it shows a willingness to learn, not stupidity.

John VV · 12-18-2014, 03:24 AM

Adobe pdf's are not c++ code
an example of building a c++ program with a shell script
BUILD.sh

Code:

#!/bin/sh

cd ../..
qmake-qt4 -project -after "CONFIG+=opengl" -after "QT+=xml opengl script"
qmake-qt4
make

cd Build/Linux

mkdir "Structure_Synth"
mkdir "Structure_Synth/Examples"
mkdir "Structure_Synth/Misc"
cp ../../trunk "Structure_Synth/structuresynth"
cp ../../LICENSE* "Structure_Synth"
cp -r ../../Examples/* "Structure_Synth/Examples"
cp -r ../../Misc/* "Structure_Synth/Misc"

cd "Structure_Synth"
rm -rf `find . -type d -name .svn`
cd ..

have you tried

Code:

./something  --help