Question

Write a bash script to find all the files ending with .c recursively for every directory in your current working directory, then copy each one to a folder called programs, need handle duplicates by appending the number to the end of the file (ex main.c main-1.c ) compile them and generate a report

report should look like:

main.c compiles

prog2.c failed

main-2.c compiles

etc.

Answer 1

#!/bin/bash

#Defining/Creating Program Directory

Programs="./programs"

if [ ! -d $Programs ]; then

   mkdir $Programs

fi

for srcpath in $(find . -type f)

   # if it is reading from this program directory, then don't process it

   do srcdirname=$(dirname $srcpath)

   if [[ "$srcdirname" == "$Programs" ]]; then

       continue

   fi

   # check for file name. If it is not c, then don't process it

   fileext="${srcpath##*.}"

   if [[ $fileext == "c" ]]; then

       #Check the src filename

       dstFile=$(basename $srcpath)

       dstPath="$Programs/$dstFile"

       ((count=0))

       #If the file is already present in dest. path then rename file and retry

       while [[ -f $dstPath ]]

           do ((count++))

           dstPath="$Programs/$(basename $srcpath .c)-$count.c"

       done

       #Copy the source file to final dest file

       cp $srcpath $dstPath

       #This line will help you to see what all files are copied from which directory to programs

       #Uncomment the below and check by yourself after the end of the script

       #Remove this line from final code.

       #echo "cp $srcpath $dstPath" >> filelist.sh

       #gcc will return 0 on success. Redirect all error and output to null

       gcc $dstPath > /dev/null 2>&1

       #Check for return value of gcc compilation

       if [ $? -eq 0 ]

       then echo "$(basename $dstPath)   compiles"

       else

           echo "$(basename $dstPath) failed";

       fi

   fi

done

#Remove a.out generated in compilation process

if [ -f "a.out" ]; then

rm a.out

#If you want to remove programs folder also, uncomment the below line

#rm -rf $Programs

fi