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Tricky implementation of two-dimensional array in Bash

Terminal - Tricky implementation of two-dimensional array in Bash
getarray(){ a=$1;b="${a[$2]}";eval "c=$b";echo "${c[$3]}";return 0;};a[0]="( a b c )";a[1]="( d e f )";getarray a 1 2
2011-02-20 00:58:41
User: glaudiston
Functions: echo eval return
-1
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Tricky implementation of two-dimensional array in Bash
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Alternatives

There are 9 alternatives - vote for the best!

Terminal - Alternatives
arr[i*100+j]="whatever"
2011-02-18 00:47:25
User: RanyAlbeg
8
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Tricky implementation of two-dimensional array in Bash.

Since Bash doesn't support two-dimensional arrays, you can limit your columns length by some big enough constant value ( in this example 100 ) and then index the array with i and j, or maybe write your own get() and set() methods to index the array properly like I implemented for example ( see Sample output ).

For example for i=0 and j=0...99 you'll pick up one of 100 elements in the range [0,99] in the one-dimensional array.

For i=1 and j=0...99 you'll pick up one of 100 elements in the range [100,199].

And so on.

Be careful when using this, and remember that in fact you are always using one-dimensional array.

Show sample output | Comments (2) | Add to favourites | Report as malicious

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