Replace character X with character Y in a string with bash

I am making bash script and I want to replace one character with another character in my string variable.

Example:

#!/bin/sh

string="a,b,c,d,e"

And I want to replace , with n.

output:

string="anbncndnen"

How can I do it?

Answers:

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Method 1

So many ways, here are a few:

$ string="a,b,c,d,e"

$ echo "${string//,/$'n'}"  ## Shell parameter expansion
a
b
c
d
e

$ tr ',' 'n' <<<"$string"  ## With "tr"
a
b
c
d
e

$ sed 's/,/n/g' <<<"$string"  ## With "sed"
a
b
c
d
e

$ xargs -d, -n1 <<<"$string"  ## With "xargs"
a
b
c
d
e

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0