| 1 | #!/usr/bin/env bash
|
| 2 |
|
| 3 | print_help() {
|
| 4 | echo "Usage: rand [OPTION]... [LENGTH]... [FILE]..."
|
| 5 | echo "-n, --name [INT LENGTH] [FILE] renames a file with a random name"
|
| 6 | echo "-c, --clip [INT LENGTH] copies a random string of specified length to clipboard"
|
| 7 | echo "-h, --help display this help message"
|
| 8 | }
|
| 9 |
|
| 10 | generate_string_azAZ09Symb() {
|
| 11 | local length=$1
|
| 12 | < /dev/urandom tr -dc 'A-Za-z0-9`~!@# $%^&*()-_=+[]{}|;:,.<>?/ ' | head -c "$length"
|
| 13 | }
|
| 14 |
|
| 15 | generate_string_azAZ09() {
|
| 16 | local length=$1
|
| 17 | < /dev/urandom tr -dc 'A-Za-z0-9' | head -c "$length"
|
| 18 | }
|
| 19 |
|
| 20 | clip() {
|
| 21 | echo "$(generate_string_azAZ09Symb)"
|
| 22 | }
|
| 23 |
|
| 24 | name() {
|
| 25 | local length=$1
|
| 26 | local file=$2
|
| 27 |
|
| 28 | if [[ -z "$file" || ! -f "$file" ]]; then
|
| 29 | echo "ERROR file not found"
|
| 30 | exit 1
|
| 31 | fi
|
| 32 |
|
| 33 | random_name=$(generate_string_azAZ09 "$length")
|
| 34 | mv "$file" "$random_name"
|
| 35 | echo "renamed '$file' to '$random_name'"
|
| 36 | }
|
| 37 |
|
| 38 | naming_option=0
|
| 39 | clip_option=0
|
| 40 | num_chars=0
|
| 41 | words_option=0
|
| 42 | target_file=""
|
| 43 |
|
| 44 | while [[ "$1" =~ ^- ]]; do
|
| 45 | case "$1" in
|
| 46 | -n|--name)
|
| 47 | naming_option=1
|
| 48 | shift
|
| 49 | if [[ -n "$1" && "$1" =~ ^[0-9]+$ ]]; then
|
| 50 | num_chars=$1
|
| 51 | shift
|
| 52 | if [[ -n "$1" ]]; then
|
| 53 | target_file=$1
|
| 54 | shift
|
| 55 | else
|
| 56 | echo "no file provided"
|
| 57 | exit 1
|
| 58 | fi
|
| 59 | else
|
| 60 | echo "invalid or missing length for -n option"
|
| 61 | echo "select -h option for help"
|
| 62 | print_help
|
| 63 | exit 1
|
| 64 | fi
|
| 65 | ;;
|
| 66 | -c|--clip)
|
| 67 | clip_option=1
|
| 68 | shift
|
| 69 | if [[ -n "$1" && "$1" =~ ^[0-9]+$ ]]; then
|
| 70 | num_chars=$1
|
| 71 | shift
|
| 72 | else
|
| 73 | echo "invalid or missing argument for -c option"
|
| 74 | echo "select -h option for help"
|
| 75 | print_help
|
| 76 | exit 1
|
| 77 | fi
|
| 78 | ;;
|
| 79 | -w|--words)
|
| 80 | words_option=1
|
| 81 | shift
|
| 82 | if [[ -n "$1" && "$1" =~ ^[0-9]+$ ]]; then
|
| 83 | num_words=$1
|
| 84 | shift
|
| 85 | else
|
| 86 | echo "invalid or missing argument for -w option"
|
| 87 | echo "select -h option for help"
|
| 88 | print_help
|
| 89 | exit 1
|
| 90 | fi
|
| 91 | ;;
|
| 92 | -h|--help)
|
| 93 | print_help
|
| 94 | exit 0
|
| 95 | ;;
|
| 96 | *)
|
| 97 | echo "ERROR invalid option: $1"
|
| 98 | exit 1
|
| 99 | ;;
|
| 100 | esac
|
| 101 | done
|
| 102 |
|
| 103 | if [[ $naming_option -eq 1 ]]; then
|
| 104 | if [[ -n "$num_chars" && -n "$target_file" ]]; then
|
| 105 | name "$num_chars" "$target_file"
|
| 106 | exit 0
|
| 107 | else
|
| 108 | echo "invalid or missing length for renaming"
|
| 109 | print_help
|
| 110 | exit 1
|
| 111 | fi
|
| 112 | elif [[ $clip_option -eq 1 ]]; then
|
| 113 | if [[ -n "$num_chars" ]]; then
|
| 114 | random_string=$(generate_string_azAZ09Symb "$num_chars")
|
| 115 | echo "$random_string" | xclip -selection clipboard
|
| 116 | echo "copied"
|
| 117 | exit 0
|
| 118 | else
|
| 119 | print_help
|
| 120 | exit 1
|
| 121 | fi
|
| 122 | elif [[ $words_option -eq 1 ]]; then
|
| 123 | if [[ -n "$num_words" ]]; then
|
| 124 | random_string=$(shuf -n $num_words /etc/dictionaries-common/words | tr '\n' ' ')
|
| 125 | echo "$random_string" | xclip -selection clipboard
|
| 126 | echo "copied"
|
| 127 | exit 0
|
| 128 | else
|
| 129 | print_help
|
| 130 | exit 1
|
| 131 | fi
|
| 132 | fi
|
| 133 |
|
| 134 | if [[ $# -gt 0 && "$1" =~ ^[0-9]+$ ]]; then
|
| 135 | num_chars=$1
|
| 136 | random_string=$(generate_string_azAZ09Symb "$num_chars")
|
| 137 | echo "$random_string"
|
| 138 | exit 0
|
| 139 | fi
|
| 140 |
|
| 141 | print_help
|
| 142 | exit 1
|
