Commands by susannakaukinen

Commands by susannakaukinen (4)

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Make ls output better visible on dark terminals in bash

Sometimes you have a situation where you cannot properly see the ls output when you are using a terminal w/a dark background. Usually bash has ls aliased to use colors, and you can easily get ls to use the default foreground color via simply unaliasing the command.
This is sample output - yours may be different.
1

unalias ls

susannakaukinen · 2009-03-10 11:23:31 11
See how many % of your memory firefox is using
This is sample output - yours may be different.
6

ps -o %mem= -C firefox-bin | sed -s 's/\..*/%/'

susannakaukinen · 2009-03-06 21:09:26 10
Show latest changed files
This is sample output - yours may be different.
4

ls -ltcrh

susannakaukinen · 2009-03-06 19:11:12 6
Traceroute w/TCP to get through firewalls.

man tcptraceroute
This is sample output - yours may be different.
10

tcptraceroute www.google.com

susannakaukinen · 2009-03-06 19:04:51 12

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Copy files from multiple directories into one directory

List the size (in human readable form) of all sub folders from the current location

Simple and easy to remember. -h is human, -d1 = depth 1. disk usage, human, depth 1

What is the use of this switch ?

Find the usage of a switch with out searching through the entire man page. Usage: manswitch [cmd] [switch] Eg: $manswitch grep silent ____________________________ In simple words $man | grep "\-" Eg: $man grep | grep "\-o" This is not a standard method but works.

grep apache access.log and list IP's by hits and date - sorted

Brute force discover

Show the number of failed tries of login per account. If the user does not exist it is marked with *.

Display BIOS Information

list block devices

Shows all block devices in a tree with descruptions of what they are.

print offsets of file disk for losetup/loop-mount

If you want to mount partitions of an disk image, you need the offsets and sizes of the partitions. This command prints them in the format that losetup understands.

randomize hostname and mac address, force dhcp renew. (for anonymous networking)

this string of commands will release your dhcp address, change your mac address, generate a new random hostname and then get a new dhcp lease.

make pgsql backup and gzip it

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