Written by Scott Rowley
Aliases can be a great way to more easily remember an oddball command or to shorten a long command. Aliases are stored in your .profile (or .bash_profile) or within a include file referenced from .profile.
A couple of quick examples before showing how to set them up:
READ MORE »
Written by Scott Rowley
Another starter article to grow with my needs, we’ll start off with the shebang, or bang…or simply “!”. The first two commands I believe are the most useful and could be commonly used. Note that some of these can be a bit difficult to remember, we’ll also go over making aliases so we can use something a little easier to remember in a later article.
READ MORE »
Written by Scott Rowley
Being an ISP admin, I have regular need to find IP addresses listed in large logfiles. The following will grab anything that appears to be an IP and list it out for you, from there you can sort or whatever you want to do with the list.
perl -ne 'print "$&n" while m#d+.d+.d+.d+#g' <logfile>
Or just throw it in a bash script for easier remembering:
getip.sh
#!/bin/bash perl -ne 'print "$&\n" while m#\d+\.\d+\.\d+\.\d+#g' $1;