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How to remove , if first character on line

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# 1  
Old 10-11-2012
How to remove , if first character on line
Hi,

I have a file with lines such as the below. I want to remove the comma only if it is the first character on a line. I can't work out how to do this using sed.

*ELSET, ELSET=WHEEL_TD2
63, 64, 65, 72, 82, 88, 89, 92, 120, 121, 152, 181, 190, 221, 252, 259
, 260, 282, 283, 285, 286, 287, 291, 303, 323, 338, 437, 475, 537, 542, 545, 546
, 549, 550, 553, 554, 555, 559, 568, 570, 644, 648, 655, 657, 658, 660, 676, 693
, 741, 773, 882, 951, 1153, 1410, 1428, 1434, 1444, 1475, 1498, 1562
*ELSET, ELSET=WHEEL_TD3
22, 134, 176, 180, 241, 243, 247, 256, 271, 276, 277, 309, 311, 314, 316, 321
, 322, 324, 338, 368, 491, 543, 565, 567, 574, 576, 618, 682, 705, 1231, 1246, 1374
, 1386, 1414, 1423, 1425



Should be:
*ELSET, ELSET=WHEEL_TD2
63, 64, 65, 72, 82, 88, 89, 92, 120, 121, 152, 181, 190, 221, 252, 259
260, 282, 283, 285, 286, 287, 291, 303, 323, 338, 437, 475, 537, 542, 545, 546
549, 550, 553, 554, 555, 559, 568, 570, 644, 648, 655, 657, 658, 660, 676, 693
741, 773, 882, 951, 1153, 1410, 1428, 1434, 1444, 1475, 1498, 1562
*ELSET, ELSET=WHEEL_TD3
22, 134, 176, 180, 241, 243, 247, 256, 271, 276, 277, 309, 311, 314, 316, 321
322, 324, 338, 368, 491, 543, 565, 567, 574, 576, 618, 682, 705, 1231, 1246, 1374
1386, 1414, 1423, 1425
# 2  
Old 10-11-2012
Try this:

Code:
sed 's/^, *//' input-file >output-file

Deletes comma, and trailing space if there, if it's at the head of the line.
# 3  
Old 10-11-2012
Code:
sed 's/^ *, *//' input-file >output-file

To delete the first , even if lead by blanks.
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