Commands by yohananov (4)

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Debug redirects between production reloads
Watches the headers of a curl, following any redirects and printing only the HTTP status and the location of the possible redirects.

Change MySQL Pager For Nicer Output

delete PBS jobs based on strings from qstat output

print/scan lines starting at record ###
Useful for finding newly added lines to a file, tail + can be used to show only the lines starting at some offset. A syslog scanner would look at the file for the first time, then record the end_of_file record number using wc -l. Later (hours, days), scan only at the lines that were added since the last scan.

Rename files in batch

calculate in commandline with bash
Only works for integer arithmetic.

Change attributes of files so you can edit them
I had problems in Ubuntu while trying to edit /etc/resolv.conf, even with sudo I couldn't make any change. After a 2 minutes search on google I found this command. Hope someone finds it useful. It works like chmod, with + and - to denote which attributes are being added and which are being removed. See other attributes on man pages or on wikipedia http://en.wikipedia.org/wiki/Chattr

check open ports without netstat or lsof

Colorize matching string without skipping others
this is useful to highlight only some code without losing other lines (eg. software, logs, scripts)

Perl one liner for epoch time conversion
Converts Unix epoch time to localtime. Useful for any logs that only display epoch time.


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