[Solved] echo {A..Z}

[Tapster]

I am trying to get this command to show on individual lines. I've tried using the \\n but it does not work or my syntax is off.

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echo {A..Z}

I'm looking for a return for the letters similar to this for numbers.

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seq 1 30

Thanks in advance. Any other thoughts or command recommendations greatly apprciated.
Taps

[JoeFootball]

Thanks in advance. Any other thoughts or command recommendations greatly apprciated.

You're probably looking for something more elegant, but this appears to work ...

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echo -e 'A\nB\nC\nD\nE\nF\nG\nH\nI\nJ\nK\nL\nM\nN\nO\nP\nQ\nR\nS\nT\nU\nV\nW\nX\nY\nZ'

[Tapster]

Joe:
Thanks for this and I can see that it does. I may be using the wrong terminology but am curious if there is not a way to put line breaks in a range of character values. I'm going to keep working on it but would appreciate anyone's thoughts if one cares to share.
Best to all.

[Moonstone Man]

I may be using the wrong terminology but am curious if there is not a way to put line breaks in a range of character values.

If you plan on doing this in a script, you need a loop.

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#! /bin/bash
for letter in {A..Z}
do
    echo ${letter}
done

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A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z

[Termy]

You're probably wanting this:

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printf '%s\n' {A..Z}

This works because `printf` (shell builtin) will reuse the identifier (IE: %s), if you've not got enough identifiers relative to the data the formatting field formats, as in this case. It's better you experiment with it than me trying to explain the oddness of it. Here's another example:

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$ printf 'This is a: %s.\n' test carrot bag
This is a test.
This is a carrot.
This is a bag.

I should also point out that you could make further use of brace expansion, here:

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$ printf '%s\n' 'This is a '{test,carrot,bag}.
This is a test.
This is a carrot.
This is a bag.

But that last one isn't so readable.

[Moonstone Man]

You're probably wanting this:

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printf '%s\n' {A..Z}

Well, that's much nicer. Thank you.

[Termy]

No problem. It's a nifty trick.

[JoeFootball]

printf '%s\n' {A..Z}

+1. Well done.

[Tapster]

Thanks and I'll mark this one answered.

[rene]

One using nothing but brace expansion:

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echo -e \\b{A..Z}\\n

The \b is due to backspacing over an otherwise auto-space only.

[Termy]

...

I get an extra newline character at the end. Putting that newline character there as the suffix for the brace expansion was good thinking.

[rene]

Yeah, me too; just noticed that a simple -n to echo gets rid of that: echo -ne \\b{A..Z}\\n.

[Termy]

Yeah, me too; just noticed that a simple -n to echo gets rid of that: echo -ne \\b{A..Z}\\n.

Ah, of course! Good thinking. I rarely use `echo`, so I keep forgetting it has those flags.

[rene]

FWIW, the lousy backspace-thing has me feel the printf solution better.

[Termy]

Yeah, the `printf` method is a standard approach, but your way is clever.