Shell Programming and Scripting

Hi,

Can any one tell me how to replace one or more tabs from start of the line and in between the words with commas in the file using unix commands?

My actual data in the text file is as below with spaces.The spaces are not being shown in the post..please see them while replying to the post.

Dec 22 2008 8:30PM Dec 22 2008 8:55PM Dec 23 2008 12:00AM Dec 23 2008 1:44AM Dec 23 2008 1:44AM



I want output in a single line as below removing white spaces in the file:

Dec 22 2008 8:30PM,Dec 22 2008 8:55PM,Dec 23 2008 12:00AM,Dec 23 2008 1:44AM,Dec 23 2008 1:44AM

When I use,

cat 2.txt|sed 's/[\t ][\t ][\t ][\t ][\t ]/,/g'
, Dec 22 2008 8:30PM , Dec 22 2008 8:55PM , Dec 23 2008 12:00AM , Dec 23 2008 1:44AM , Dec 23 2008 1:44AM

it works for me,but still I want to remove first comma and blank space between say 8:30PM and comma..how to do that?


Thanks in advance...........

If given a file in the format

Code:

Test1	Test2	Test 3	Test 4

running

Code:

cat test.txt | sed -e 's/\t\+/,/g'

should do the trick.