OS - FUSE (test dir)

#!/bin/bash

# to run please change mode
# chmod +x check_dir.bash

if [ "$#" -ne 1 ]; then
    echo "Illegal number of parameters"
    echo 'Call : ./check_dir.sh mounted_dir'
    exit 1
fi

MOUNT_DIR=$1
ERR=5
cd $MOUNT_DIR

CMD="   Command : "

create_rec(){
    if [[ $1 -le 1 ]]
    then
        return
    else
        echo $CMD mkdir dir_rec_$1
        mkdir dir_rec_$1

        echo $CMD cd dir_rec_$1
        cd dir_rec_$1

        create_rec $[$1-1]

        echo $CMD cd ..
        cd ..
    fi
}

iter_rec(){
    if [[ $1 -le 1 ]]
    then
        return
    else
        echo $CMD ls
        ls
        echo $CMD pwd
        pwd
        echo

        echo $CMD cd dir_rec_$1
        cd dir_rec_$1

        iter_rec $[$1-1]

        echo $CMD cd ..
        cd ..
    fi
}

test1(){
    echo "Test 1 : Creating $1 Folders ..."
    for i in $(seq 1 $1);
    do
        echo $CMD mkdir dir_$i
        mkdir dir_$i
    done
    echo "Done!"
    echo
}

test2(){
    echo "Test 2 : Creating $1 depth subdirectories (/a/b/c/d/e/f...)"
    create_rec $1
    echo "Done!"
    echo
}

test3(){
    echo "Test 3 : pwd, ls ..."
    echo $CMD 'pwd : '
    pwd
    echo

    echo $CMD 'ls  : '
    ls
    echo

    echo $CMD 'ls -al: '
    ls -al
    echo

    iter_rec $1
    echo "Done!"
    echo
}


test4(){
    echo "Test 4 : Creating directories with large names ..."

    len=128
    chars="A B C D E F G H I J K L M N O P Q R S T U V X Y Z "
    for a in $chars; do
        dir_name=$a
        for i in $(seq 1 $len);
        do
            dir_name=$dir_name$a
        done
        echo mkdir "$a$a$a... ($len x)"
        mkdir $dir_name
    done;
    ls
    echo "Done!"
    echo
}


test5(){
    echo "Test 3 : Testing Rmdir ..."

    echo mkdir dir1 dir2 dir3 dir_to_rem1 dir_to_rem2
    mkdir dir1 dir2 dir3 dir_to_rem1 dir_to_rem2
    echo

    echo ls
    ls
    echo

    echo rmdir dir_to_rem1
    rmdir dir_to_rem1
    echo

    echo rmdir dir_to_rem2
    rmdir dir_to_rem2
    echo

    echo rmdir NO_DIR
    rmdir NO_DIR
    echo

    echo mkdir subdir1 subdir1/subdir2 subdir1/subdir2/subdir3
    mkdir subdir1 subdir1/subdir2 subdir1/subdir2/subdir3
    echo

    echo "!!! Trying to delete non empty directory !!!"
    echo rmdir subdir1
    rmdir subdir1
    echo

    echo ls
    ls
    echo

    echo "Done!"
    echo
}

run_test(){
    TOTAL_DIR_NUM=10

    # Base Test Make 10 Directories
    test1 $TOTAL_DIR_NUM

    # Create 10 Subdirectories
    test2 $TOTAL_DIR_NUM

    # pwd and ls
    test3 $TOTAL_DIR_NUM

    # Checking rmdir
    test5

    # Create Folders with large name
    test4
}


START=$(date +%s.%N)
run_test
END=$(date +%s.%N)
DIFF=$(echo "$END - $START" | bc)

echo "Elapsed time : $DIFF seconds"