Commands by shadycraig (5)

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Compare two CSV files, discarding any repeated lines
The value for the sort command's -k argument is the column in the CSV file to sort on. In this example, it sorts on the second column. You must use some form of the sort command in order for uniq to work properly.

Colorizes an access log
Puts a splash of color in your access logs. IP addresses are gray, 200 and 304 are green, all 4xx errors are red. Works well with e.g. "colorize access_log | less -R" if you want to see your colors while paging. Use as inspiration for other things you might be tailing, like syslog or vmstat Usage: $ tail -f access.log | colorize

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.

Apache CLF access log format to CSV converter
- excel date compatible with a separate hour field - added a fixed 1 for easier request counter aggregation - split URL in directory, filename, fileext, query - used with tomcat valve with response bytes replaced by elapsed time

Solaris - check ports/sockets which process has opened

Target a specific column for pattern substitution
Awk replaces every instance of foo with bar in the 5th column only.

Find all plain text files that do not contain STRING

Determine what version of bind is running on a dns server.
Due to the recent dynamic update vulnerability with bind, I was forced to dig a little deeper into dig...

remove files and directories with acces time older than a given date
touch a dummy file with the specified date, then use find with -anewer .


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