{
"mode": "man",
"parameter": "basenc",
"section": "1",
"url": "https://www.chedong.com/phpMan.php/man/basenc/1/json",
"generated": "2026-06-15T13:57:44Z",
"synopsis": "basenc [OPTION]... [FILE]",
"sections": {
"NAME": {
"content": "basenc - Encode/decode data and print to standard output\n",
"subsections": []
},
"SYNOPSIS": {
"content": "basenc [OPTION]... [FILE]\n",
"subsections": []
},
"DESCRIPTION": {
"content": "basenc encode or decode FILE, or standard input, to standard output.\n\nWith no FILE, or when FILE is -, read standard input.\n\nMandatory arguments to long options are mandatory for short options too.\n",
"subsections": [
{
"name": "--base64",
"content": "same as 'base64' program (RFC4648 section 4)\n",
"long": "--base64"
},
{
"name": "--base64url",
"content": "file- and url-safe base64 (RFC4648 section 5)\n",
"long": "--base64url"
},
{
"name": "--base32",
"content": "same as 'base32' program (RFC4648 section 6)\n",
"long": "--base32"
},
{
"name": "--base32hex",
"content": "extended hex alphabet base32 (RFC4648 section 7)\n",
"long": "--base32hex"
},
{
"name": "--base16",
"content": "hex encoding (RFC4648 section 8)\n",
"long": "--base16"
},
{
"name": "--base2msbf",
"content": "bit string with most significant bit (msb) first\n",
"long": "--base2msbf"
},
{
"name": "--base2lsbf",
"content": "bit string with least significant bit (lsb) first\n",
"long": "--base2lsbf"
},
{
"name": "-d --decode",
"content": "decode data\n",
"flag": "-d",
"long": "--decode"
},
{
"name": "-i --ignore-garbage",
"content": "when decoding, ignore non-alphabet characters\n",
"flag": "-i",
"long": "--ignore-garbage"
},
{
"name": "-w --wrap",
"content": "wrap encoded lines after COLS character (default 76). Use 0 to disable line wrapping\n\n--z85 ascii85-like encoding (ZeroMQ spec:32/Z85); when encoding, input length must be a mul‐\ntiple of 4; when decoding, input length must be a multiple of 5\n\n--help display this help and exit\n",
"flag": "-w",
"long": "--wrap"
},
{
"name": "--version",
"content": "output version information and exit\n\nWhen decoding, the input may contain newlines in addition to the bytes of the formal alpha‐\nbet. Use --ignore-garbage to attempt to recover from any other non-alphabet bytes in the en‐\ncoded stream.\n",
"long": "--version"
}
]
},
"ENCODINGS EXAMPLES": {
"content": "$ printf '\\376\\117\\202' | basenc --base64\n/k+C\n\n$ printf '\\376\\117\\202' | basenc --base64url\nk-C\n\n$ printf '\\376\\117\\202' | basenc --base32\n7ZHYE===\n\n$ printf '\\376\\117\\202' | basenc --base32hex\nVP7O4===\n\n$ printf '\\376\\117\\202' | basenc --base16\nFE4F82\n\n$ printf '\\376\\117\\202' | basenc --base2lsbf\n011111111111001001000001\n\n$ printf '\\376\\117\\202' | basenc --base2msbf\n111111100100111110000010\n\n$ printf '\\376\\117\\202\\000' | basenc --z85\n@.FaC\n",
"subsections": []
},
"AUTHOR": {
"content": "Written by Simon Josefsson and Assaf Gordon.\n",
"subsections": []
},
"REPORTING BUGS": {
"content": "GNU coreutils online help: \nReport any translation bugs to \n",
"subsections": []
},
"COPYRIGHT": {
"content": "Copyright © 2020 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later\n.\nThis is free software: you are free to change and redistribute it. There is NO WARRANTY, to\nthe extent permitted by law.\n",
"subsections": []
},
"SEE ALSO": {
"content": "Full documentation \nor available locally via: info '(coreutils) basenc invocation'\n\n\n\nGNU coreutils 8.32 January 2026 BASENC(1)",
"subsections": []
}
},
"summary": "basenc - Encode/decode data and print to standard output",
"flags": [
{
"flag": "",
"long": "--base64",
"arg": null,
"description": "same as 'base64' program (RFC4648 section 4)"
},
{
"flag": "",
"long": "--base64url",
"arg": null,
"description": "file- and url-safe base64 (RFC4648 section 5)"
},
{
"flag": "",
"long": "--base32",
"arg": null,
"description": "same as 'base32' program (RFC4648 section 6)"
},
{
"flag": "",
"long": "--base32hex",
"arg": null,
"description": "extended hex alphabet base32 (RFC4648 section 7)"
},
{
"flag": "",
"long": "--base16",
"arg": null,
"description": "hex encoding (RFC4648 section 8)"
},
{
"flag": "",
"long": "--base2msbf",
"arg": null,
"description": "bit string with most significant bit (msb) first"
},
{
"flag": "",
"long": "--base2lsbf",
"arg": null,
"description": "bit string with least significant bit (lsb) first"
},
{
"flag": "-d",
"long": "--decode",
"arg": null,
"description": "decode data"
},
{
"flag": "-i",
"long": "--ignore-garbage",
"arg": null,
"description": "when decoding, ignore non-alphabet characters"
},
{
"flag": "-w",
"long": "--wrap",
"arg": null,
"description": "wrap encoded lines after COLS character (default 76). Use 0 to disable line wrapping --z85 ascii85-like encoding (ZeroMQ spec:32/Z85); when encoding, input length must be a mul‐ tiple of 4; when decoding, input length must be a multiple of 5 --help display this help and exit"
},
{
"flag": "",
"long": "--version",
"arg": null,
"description": "output version information and exit When decoding, the input may contain newlines in addition to the bytes of the formal alpha‐ bet. Use --ignore-garbage to attempt to recover from any other non-alphabet bytes in the en‐ coded stream."
}
],
"examples": [],
"see_also": [],
"tldr": {
"source": "official",
"description": "Encode or decode file or `stdin` using a specified encoding, to `stdout`.",
"examples": [
{
"description": "Encode a file with base64 encoding",
"command": "basenc --base64 {{path/to/file}}"
},
{
"description": "Decode a file with base64 encoding",
"command": "basenc {{-d|--decode}} --base64 {{path/to/file}}"
},
{
"description": "Encode from `stdin` with base32 encoding with 42 columns",
"command": "{{command}} | basenc --base32 {{-w|--wrap}} 42"
},
{
"description": "Encode from `stdin` with base32 encoding",
"command": "{{command}} | basenc --base32"
}
]
}
}