#!/bin/sh
mkdir /tmp/mydir
echo "Created /tmp/mydir"
ls /tmp

#!/bin/sh
mkdir -p /tmp/parent/child/grandchild
echo "Created nested directories:"
ls /tmp/parent/child/

#!/bin/sh
mkdir -p /tmp/mydir # No error

#!/bin/sh
mkdir -p /tmp/mydir
rmdir /tmp/mydir
echo "Removed /tmp/mydir"

#!/bin/sh
rmdir -p /tmp/parent/child/grandchild 2>/dev/null || true
echo "Removed nested directories"

#!/bin/sh
mkdir -p /tmp/testdir
touch /tmp/testdir/file1.txt /tmp/testdir/file2.sh

echo "List directory:"
ls /tmp/testdir

echo "Detailed listing:"
ls -la /tmp/testdir

echo "One file per line:"
ls -1 /tmp/testdir

#!/bin/sh
mkdir -p /tmp/testdir
touch /tmp/testdir/.hidden
echo "Including hidden files:"
ls -a /tmp/testdir

#!/bin/sh
mkdir -p /tmp/testdir
if [ -d "/tmp/testdir" ]; then
    echo "/tmp/testdir exists"
fi

#!/bin/sh
mkdir -p /tmp/testdir
original_dir=$(pwd)
cd /tmp/testdir || exit 1
echo "Changed to: $(pwd)"
cd "$original_dir" || exit 1
echo "Back to: $(pwd)"

#!/bin/sh
mkdir -p /tmp/testdir

(
    cd /tmp/testdir || exit 1
    echo "In subshell: $(pwd)"
)
echo "Still in: $(pwd)"

#!/bin/sh
mkdir -p /tmp/findtest/sub
touch /tmp/findtest/a.txt /tmp/findtest/b.sh /tmp/findtest/sub/c.txt

echo "Find all files:"
find /tmp/findtest -type f

echo "Find only .txt files:"
find /tmp/findtest -name "*.txt"

echo "Find by type (directories):"
find /tmp/findtest -type d

#!/bin/sh
mkdir -p /tmp/findtest
touch /tmp/findtest/file1.txt /tmp/findtest/file2.txt

echo "Max depth 1:"
find /tmp/findtest -maxdepth 1 -type f

#!/bin/sh
mkdir -p /tmp/findtest
touch /tmp/findtest/file1.txt /tmp/findtest/file2.txt

echo "Find files and list them:"
find /tmp/findtest -type f -exec ls {} \;

#!/bin/sh
mkdir -p /tmp/findtest
touch /tmp/findtest/file1.txt /tmp/findtest/file2.txt

touch -d "2 days ago" /tmp/findtest/old.txt 2>/dev/null || touch /tmp/findtest/old.txt
echo "Files modified in last day:"
find /tmp/findtest -mtime -1 -type f

#!/bin/sh
mkdir -p /tmp/testdir
mkdir -p /tmp/findtest
echo "Created test directories" >/tmp/testdir/file1.txt

echo "Directory sizes:"
du -sh /tmp/testdir
du -sh /tmp/findtest

#!/bin/sh
mkdir -p /tmp/findtest
touch /tmp/findtest/file1.txt /tmp/findtest/file2.txt

echo "Subdirectory sizes:"
du -h /tmp/findtest

#!/bin/sh
mkdir -p /tmp/findtest
touch /tmp/findtest/file1.txt /tmp/findtest/file2.txt

echo "File count: $(find /tmp/findtest -type f | wc -l)"

#!/bin/sh
mkdir -p /tmp/testdir
touch /tmp/testdir/file1.txt /tmp/testdir/file2.txt

echo "Loop over files:"
for file in /tmp/testdir/*; do
    [ -e "$file" ] || continue
    echo "  Found: $(basename "$file")"
done

#!/bin/sh
mkdir -p "/tmp/spaces dir"
touch "/tmp/spaces dir/file with spaces.txt"
echo "Files with spaces:"
for file in "/tmp/spaces dir"/*; do
    echo "  $file"
done
rm -rf "/tmp/spaces dir"

#!/bin/sh
mkdir -p /tmp/testdir
mkdir -p /tmp/testdir_copy

cp -r /tmp/testdir /tmp/testdir_copy
echo "Copied directory:"
ls /tmp/testdir_copy

#!/bin/sh
mkdir -p /tmp/testdir_copy
mkdir -p /tmp/testdir_renamed

mv /tmp/testdir_copy /tmp/testdir_renamed
echo "Renamed to testdir_renamed"

#!/bin/sh
rm -rf /tmp/testdir_renamed
echo "Removed testdir_renamed"

#!/bin/sh
tmpdir=$(mktemp -d)
echo "Created temp dir: $tmpdir"
rmdir "$tmpdir"

#!/bin/sh
echo "Home directory: $HOME"
echo "Tilde expansion: ~"

#!/bin/sh
echo "Current: $PWD"
echo "Previous: ${OLDPWD:-not set}"

#!/bin/sh
is_empty_dir() {
    [ -d "$1" ] && [ -z "$(ls -A "$1")" ]
}

mkdir /tmp/emptydir
if is_empty_dir /tmp/emptydir; then
    echo "/tmp/emptydir is empty"
fi
rmdir /tmp/emptydir

#!/bin/sh
ensure_dir() {
    [ -d "$1" ] || mkdir -p "$1"
}

ensure_dir /tmp/ensured
echo "Ensured /tmp/ensured exists"

#!/bin/sh
rm -rf /tmp/testdir /tmp/findtest /tmp/ensured

echo "Directory examples complete"