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shuf always outputs to STDOUT; --echo changes the mode of input
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edit approved Apr 4 at 15:21
Alex Ball
edit approved Apr 4 at 15:21
Alex Ball
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Inspired by Pablo Repetto I ended up with this easy to remember solution:

shuf -er -n20  {A..Z} {a..z} {0..9} | tr -d '\n'

-e echoesmeans the resultarguments get shuffled (as opposed to STDIN or the contents of a file)

-r allows any character to appear multiple times

-n20 requests a random string with a length of 20 characters

{A..Z} {a..z} {0..9} defines the allowed char classesexpands to a list of chars to shuffle

(tr -d '\n' is needed because shuf actually shuffles lines, not chars)

shuf is part of coreutils and widely available or at least been ported.

Inspired by Pablo Repetto I ended up with this easy to remember solution:

shuf -er -n20  {A..Z} {a..z} {0..9} | tr -d '\n'

-e echoes the result

-r allows any character to appear multiple times

-n20 requests a random string with a length of 20 characters

{A..Z} {a..z} {0..9} defines the allowed char classes

shuf is part of coreutils and widely available or at least been ported.

Inspired by Pablo Repetto I ended up with this easy to remember solution:

shuf -er -n20  {A..Z} {a..z} {0..9} | tr -d '\n'

-e means the arguments get shuffled (as opposed to STDIN or the contents of a file)

-r allows any character to appear multiple times

-n20 requests a random string with a length of 20 characters

{A..Z} {a..z} {0..9} expands to a list of chars to shuffle

(tr -d '\n' is needed because shuf actually shuffles lines, not chars)

shuf is part of coreutils and widely available or at least been ported.

Instead of deleting the null characters, avoid -z and delete newlines.
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Stephen Kitt
Stephen Kitt
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Inspired by Pablo Repetto I ended up with this easy to remember solution:

shuf -zerer -n20  {A..Z} {a..z} {0..9} | tr -d '\0''\n'

-z avoids multi line output by replacing the '\n' char with a '\0'.

-e echo-e echoes the result

-r allow-r allows any character to appear multiple times

-n20-n20 requests a random string with a length of 20 characters

{A..Z} {a..z} {0..9}{A..Z} {a..z} {0..9} defines the allowed char classes

shuf is part of the linux coreutils and widely available or at least been ported.

Inspired by Pablo Repetto I ended up with this easy to remember solution:

shuf -zer -n20  {A..Z} {a..z} {0..9} | tr -d '\0'

-z avoids multi line output by replacing the '\n' char with a '\0'.

-e echo the result

-r allow any character to appear multiple times

-n20 random string with a length of 20 characters

{A..Z} {a..z} {0..9} allowed char classes

shuf is part of the linux coreutils and widely available or at least been ported.

Inspired by Pablo Repetto I ended up with this easy to remember solution:

shuf -er -n20  {A..Z} {a..z} {0..9} | tr -d '\n'

-e echoes the result

-r allows any character to appear multiple times

-n20 requests a random string with a length of 20 characters

{A..Z} {a..z} {0..9} defines the allowed char classes

shuf is part of coreutils and widely available or at least been ported.

the -z flag only replaces '\n' withand '\0' char at the end of each char. making the string multi byte
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edit approved Mar 18, 2022 at 9:20
mountain
edit approved Mar 18, 2022 at 9:20
mountain
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Inspired by Pablo Repetto I ended up with this easy to remember solution:

shuf -zer -n20  {A..Z} {a..z} {0..9} | tr -d '\0'

-z avoids multi line output by replacing the '\n' char with a '\0'.

-e echo the result

-r allow any character to appear multiple times

-n20 random string with a length of 20 characters

{A..Z} {a..z} {0..9} allowed char classes

shuf is part of the linux coreutils and widely available or at least been ported.

Inspired by Pablo Repetto I ended up with this easy to remember solution:

shuf -zer -n20  {A..Z} {a..z} {0..9}

-z avoids multi line output

-e echo the result

-r allow any character to appear multiple times

-n20 random string with a length of 20 characters

{A..Z} {a..z} {0..9} allowed char classes

shuf is part of the linux coreutils and widely available or at least been ported.

Inspired by Pablo Repetto I ended up with this easy to remember solution:

shuf -zer -n20  {A..Z} {a..z} {0..9} | tr -d '\0'

-z avoids multi line output by replacing the '\n' char with a '\0'.

-e echo the result

-r allow any character to appear multiple times

-n20 random string with a length of 20 characters

{A..Z} {a..z} {0..9} allowed char classes

shuf is part of the linux coreutils and widely available or at least been ported.

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entwicklerseite
entwicklerseite
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