Hi all,

I was doing some bash scripting a little while ago and while manipulating some text using some neat shortcuts I thought I'd share
in case anyone has a need to do just this;


Consider a variable; `string="this is a string"`

To output this string as is, you'd do this;
```
$ echo $string
this is a string
```

If you wanted that string to output all uppercase, you could do this;
```
$ echo ${string^^}
THIS IS A STRING
```

If you wanted that string to output all lowercase, you could do this;
```
$ echo ${string,,}
this is a string
```

If you wanted to capitalise just the first word, you could do this;
```
$ echo ${string^}
This is a string
```

If you wanted to capitalise every word, you could do this;
```
$ stringArray=( $string )
$ echo ${stringArray[@]^}
This Is A String
```

If you wanted to change a the word `is` to another word, say `isn't` then you could do this;
```
$ echo "${string// is/ isn\'t}"
this isn't a string
```

If you wanted to change all the spaces into underscores, you could do this;
```
$ echo "${string// /_}"
this_is_a_string
```


I hope that this will help someone =)

---
|14Best regards,
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On 31 Jan 2023, MeaTLoTioN said the following...

I was doing some bash scripting a little while ago and while
manipulating some text using some neat shortcuts I thought I'd share
in case anyone has a need to do just this;

--8<-------

I hope that this will help someone =)

I didn't know, some of these can come in quite handy, thanks!

dozo


dozo

--- Mystic BBS v1.12 A48 (Linux/64)
* Origin: (1337:1/117)

I was doing some bash scripting a little while ago and while
manipulating some text using some neat shortcuts I thought I'd share
in case anyone has a need to do just this;

As always, I've extracted this msg and it makes its way to my text folder. Thank you for the tricks - I think I can use some of these at times. Them pesky







































































































































































spaces and all...

If you wanted to capitalise every word, you could do this;
```
$ stringArray=( $string )
$ echo ${stringArray[@]^}
This Is A String
```

This one is interesting... why do we have to create a new variable; or... what can't you just;
echo ${string[@]^}

At any rate, thanks; I'll be playing around with how to use this wizardry on my







































































































































































own.



|07p|15AULIE|1142|07o
|08.........

--- Mystic BBS v1.12 A48 (Linux/64)
* Origin: 2o fOr beeRS bbs>>>20ForBeers.com:1337 (1337:3/129)

On 31 Jan 2023, paulie420 said the following...

If you wanted to capitalise every word, you could do this;
```
$ stringArray=( $string )
$ echo ${stringArray[@]^}
This Is A String
```

This one is interesting... why do we have to create a new variable;
or... what can't you just;
echo ${string[@]^}

Ah good question, the reason is because you need an array to be able to iterate







































































































































































over words in it, otherwise you'll just iterate over each character. That's why







































































































































































I made the array first out of the original string, it uses spaces as the separator, then you can iterate over each item in the array as intended.

Hope this helps =)

---
|14Best regards,
|11Ch|03rist|11ia|15n |11a|03ka |11Me|03aTLoT|11io|15N // @meatlotion:erb.pw

|07ÄÄ |08[|10eml|08] |15ml@erb.pw |07ÄÄ |08[|10web|08] |15www.erb.pw |07ÄÄÄ¿ |07ÄÄ |08[|09fsx|08] |1521:1/158 |07ÄÄ |08[|11tqw|08] |151337:1/101 |07ÂÄÄÙ |07ÄÄ |08[|12rtn|08] |1580:774/81 |07ÄÂ |08[|14fdn|08] |152:250/5 |07ÄÄÄÙ
|07ÄÄ |08[|10ark|08] |1510:104/2 |07ÄÙ

--- Mystic BBS v1.12 A48 2022/07/15 (Linux/64)
* Origin: thE qUAntUm wOrmhOlE, rAmsgAtE, uK. bbs.erb.pw (1337:1/101)

Re: bash variable expansion
By: MeaTLoTioN to All on Tue Jan 31 2023 10:16 am

Howdy,

I was doing some bash scripting a little while ago and while manipulating some text using some neat shortcuts I thought I'd share
in case anyone has a need to do just this;

Nice - useful.

I thought I was good at bash foo - and I didnt know a few of these... ;)


...ëîåï
--- SBBSecho 3.15-Linux
* Origin: I'm playing with ANSI+videotex - wanna play too? (1337:2/101)

This one is interesting... why do we have to create a new variable; or... what can't you just;
echo ${string[@]^}

Ah good question, the reason is because you need an array to be able to iterate over words in it, otherwise you'll just iterate over each character. That's why I made the array first out of the original string, it uses spaces as the separator, then you can iterate over each item in the array as intended.

I'm understanding - thx for the deets.



|07p|15AULIE|1142|07o
|08.........

--- Mystic BBS v1.12 A48 (Linux/64)
* Origin: 2o fOr beeRS bbs>>>20ForBeers.com:1337 (1337:3/129)

Hey, thanks for the tips, that was damn cool and much better than any manpages could explain :)

[ ]
Krull

... I'm not a complete idiot... Several parts are missing!

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