Replace nth character in a file with a period - UNIX for Dummies Questions & Answers

blackhawk_123 · #1 07-23-2008

Hi all,

If you look at the example below,I want to replace the 21st character (,) with a period (.). I have 1000 records in a file can someone help me how to do that. Thankyou all in advance.

"2008-07-15 05:35:16,103","Z467813","GET","/LoginDisplayAction.do",,,,"3476.0","/LoginDisplayAction.do"

rubin · #2 07-23-2008

Code:

awk '{print substr($0,0,20)"."substr($0,22)}'  log > newlog

Or if only the first comma needs to be replaced use

Code:

sed 's/,/./1' log > newlog

fpmurphy · #3 07-23-2008

Code:

sed 's/,/./' log > newlog

blackhawk_123 · #4 07-24-2008

Thank you very much, sed command solved my problem. Thank you once again

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