## zc
```bash
#!/bin/bash
s="$1"
shift
if [ -e "$s" ]; then
  echo "$s already exists, skipping"
  exit 1
fi
if [[ "$s" =~ \.tar\.(xz|gz|bz2) ]]; then
  echo "Creating $s with tar (compression)"
  tar cvaf "$s" "$@"
elif [[ "$s" =~ \.tar$ ]]; then
  echo "Creating $s with tar (uncompressed)"
  tar cvf "$s" "$@"
elif [[ "$s" =~ \.zip$ ]]; then
  echo "Creating $s with zip"
  zip -9r "$s" "$@"
elif [[ "$s" =~ \.(7z)$ ]]; then
  echo "Creating $s with 7z"
  7z a "$s" "$@"
else
  echo "Unrecognised extension $s"
fi
```

## zf
```bash
#!/bin/bash
for s; do
  if [ ! -e "$s" ]; then
    echo "$s does not exist, skipping"
    continue
  fi
  if [[ "$s" =~ \.tar\. ]] || [[ "$s" =~ \.tar$ ]]; then
    tar tf "$s"
  elif [[ "$s" =~ \.zip$ ]]; then
    zip -v "$s"
  elif [[ "$s" =~ \.(7z|rar)$ ]]; then
    7z l "$s"
  fi
done
```

## zx
```bash
#!/bin/bash
for s; do
  if [ ! -e "$s" ]; then
    echo "$s does not exist, skipping"
    continue
  fi
  if [[ "$s" =~ \.tar\. ]] || [[ "$s" =~ \.tar$ ]]; then
    a="${s%.*}"
    a="${a%.tar}"
    f="$(readlink -f "$s")"
    (
      mkdir -p "$a"
      cd "$a"
      tar xvf "$f"
    )
  elif [[ "$s" =~ \.zip$ ]]; then
    a="${s%.zip}"
    unzip -d "$a" "$s"
  elif [[ "$s" =~ \.(7z|rar)$ ]]; then
    a="${s%.*}"
    7z x -o"$a" "$s"
  fi
done
```