[SOLVED] how to join the result of ls command into a string using comma

Issue

I 'm using linux shell.

I want to join the ls . result into a string.

for example:

a=`ls .`
echo $a

then the $a will be "file1 file2 file3"

but I want it to be "file1,file2,file3"

hot to realize this?

Solution

$ ls -xm
$ # or
$ echo `ls .`|sed 's/ /,/g'

Answered By - micfan