Delete specific characters

masquerer · #1 (**permalink**) 04-20-2008

Hi every1

Well i have a list of numbers e.g

12304
13450
01234
00123
14567

what i want is a command to check if the number is starting from 0 and then delete the 0 without doing anything else!!!!
any help wud b appreciated!!!!!!!!

rubin · #2 (**permalink**) 04-20-2008

Quote:

Originally Posted by masquerer

... to check if the number is starting from 0 and then delete the 0 without doing anything else!!!!

Removing only the first 0:

Code:

awk '{sub(/^0/,"")}1' list

bakunin · #3 (**permalink**) 04-21-2008

I presume you want to delete all the leading zeroes, not only the first one, right? This the solution in sed:

Code:

sed 's/^00*//' /path/to/sourcefile > /path/to/resultfile

It should be said that both the awk- and the sed-solution are easily changed to achieve the respective other conceivable goal.

I hope this helps.

bakunin

Yogesh Sawant · #4 (**permalink**) 04-21-2008

using Perl:

Code:

perl -pi -e 's/^0+//' filename

Franklin52 · #5 (**permalink**) 04-21-2008

Another one:

Code:

awk '{print int($0)}' file

Regards

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