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rand (2237B)

      1 #!/bin/sh
      2 
      3 generate_string_azAZ09Symb() {
      4 	local length=$1
      5 	< /dev/urandom tr -dc 'A-Za-z0-9`~!@# $%^&*()-_=+[]{}|;:,.<>?/ ' | head -c "$length"
      6 }
      7 
      8 generate_string_azAZ09() {
      9 	local length=$1
     10 	< /dev/urandom tr -dc 'A-Za-z0-9' | head -c "$length"
     11 }
     12 
     13 print_help() {
     14 	echo "Usage: rand [OPTION]... [LENGTH]... [FILE]..."
     15 	echo "-n, --name [INT LENGTH] [FILE]	renames a file with a random name"
     16 	echo "-c, --clip [INT LENGTH]			copies a random string of specified length to clipboard"
     17 	echo "-h, --help						display this help message"
     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 "$file" ]]; then
     29 		echo "File not found or not provided."
     30 		exit 1
     31 	fi
     32 	
     33 	random_name=$(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 target_file=""
     42 
     43 while [[ "$1" =~ ^- ]]; do
     44 	case "$1" in
     45 		-n|--name) 
     46 			naming_option=1
     47 			shift
     48 			if [[ -n "$1" && "$1" =~ ^[0-9]+$ ]]; then
     49 				num_chars=$1
     50 				shift
     51 				if [[ -n "$1" ]]; then
     52 					target_file=$1
     53 					shift
     54 				else
     55 					echo "No file specified for renaming."
     56 					exit 1
     57 				fi
     58 			else
     59 				echo "Invalid or missing length for -n option."
     60 				print_help
     61 				exit 1
     62 			fi
     63 			;;
     64 		-c|--clip)
     65 			clip_option=1
     66 			shift
     67 			if [[ -n "$1" && "$1" =~ ^[0-9]+$ ]]; then
     68 				num_chars=$1
     69 				shift
     70 			else
     71 				echo "Invalid or missing argument for -c option."
     72 				print_help
     73 				exit 1
     74 			fi
     75 			;;
     76 		-h|--help)
     77 			print_help
     78 			exit 0
     79 			;;
     80 		*)
     81 			echo "Invalid option: $1"
     82 			exit 1
     83 			;;
     84 	esac
     85 done
     86 
     87 if [ $naming_option -eq 1 ]; then
     88 	if [[ -n "$num_chars" && -n "$target_file" ]]; then
     89 		name "$num_chars" "$target_file"
     90 		exit 0
     91 	else
     92 		echo "Missing length or file for renaming."
     93 		print_help
     94 		exit 1
     95 	fi
     96 elif [ $clip_option -eq 1 ]; then
     97 	if [[ -n "$num_chars" ]]; then
     98 		random_string=$(generate_string_azAZ09Symb "$num_chars")
     99 		echo "$random_string" | xclip -selection clipboard
    100 		echo "copied to clipboard"
    101 		exit 0
    102 	else 
    103 		print_help
    104 		exit 1
    105 	fi
    106 fi
    107 
    108 if [[ $# -gt 0 && "$1" =~ ^[0-9]+$ ]]; then
    109 	num_chars=$1
    110 	random_string=$(generate_string_azAZ09Symb "$num_chars")
    111 	echo "$random_string"
    112 	exit 0
    113 fi
    114 
    115 print_help
    116 exit 1