Linux Anybody?

[riv123]

Did you know?

 

history or fc -l commands can show your bash command line history or recall the history stored in ~/.bash_history file. You can make history to ignore the commands if it begin with a space:

w

history

fc -l

 

## run who command with a space ##

export HISTIGNORE="[ \t]*"

who

history

 

The HISTIGNORE shell variable controls which command lines should be saved (i.e. ignored) on the history list. To ignore duplicate commands in history, enter:

export HISTIGNORE="&"

 

You can define a colon-separated list of patterns to ignore ls command, duplicate commands, and ignore the commands if it begin with a space, enter:

export HISTIGNORE="ls:&:[ \t]*"

history

ls

date

date

cal

history

 

As a sys admin you may want to ignore the frequently used commands such as - ls, pwd, cd, mount, umount, clear, exit, and much more from your history.

export HISTIGNORE="ls:&:[ \t]*:cd:mount:umount:clear:exit:pwd:date"

 

See bash man page for more info:

man bash

help history

[riv123]

Simple script to list all active and system users.

 

------------------------[cut]------------------

#!/bin/bash

_l="/etc/login.defs"

_p="/etc/passwd"

 

## get mini UID limit ##

l=$(grep "^UID_MIN" $_l)

 

## get max UID limit ##

l1=$(grep "^UID_MAX" $_l)

 

## use awk to print if UID >= $MIN and UID <= $MAX and shell is not /sbin/nologin ##

echo "----------[ Normal User Accounts ]---------------"

awk -F':' -v "min=${l##UID_MIN}" -v "max=${l1##UID_MAX}" '{ if ( $3 >= min && $3 <= max && $7 != "/sbin/nologin" ) print $0 }' "$_p"

 

echo ""

echo "----------[ System User Accounts ]---------------"

awk -F':' -v "min=${l##UID_MIN}" -v "max=${l1##UID_MAX}" '{ if ( !($3 >= min && $3 <= max && $7 != "/sbin/nologin")) print $0 }' "$_p"

 

-----------------------[stop]-----------------

[riv123]

To removal ALL the files and not any subdirectories in /dest type the following

find /dest -type f -delete

 

To removal only the files and ot any subdirectories in /dest type the following:

find /dest -maxdepth 1 -type f -delete

 

The -delete option will only work on the modern Unix like systems. For older systems try shell loops or pipes or pipes via xargs

find /dest -type f -print0 | xargs -I{} -0 rm {}

[riv123]

Want to find how many files an application is using..? Run:

 

lsof +c 0 | cut -d' ' -f1 | sort | uniq -c

[riv123]

If you know vim or vi and use it on a daily basis and you will like this funny game

 

http://vim-adventures.com/

[riv123]

Want a quick web server running without installing Apache to grab some files from your $HOME? Try:

 

ssh user@server1

cd /path/to/dir

python -m SimpleHTTPServer

 

Fire a browser and type:

http://server1:8000

 

When done press CTRL+C and exit from ssh session.

 

PS: you can also use nc

[hitokiri_3020]

masters need help, i'm using linux mint nadia, i installed wine to use vegas 7, pero di ko ma-install yung dotnet framework ng maayos, any tips or suggestions mga master.

 

TIA

[Orgasm Donor]

how much is the linux software

[RƐX]

Always wanted to "master" Linux but I can never have the time. Kaya naging script-kiddie na lang ako kapag may kailangan ako gawin sa Linux support box namin

[itikbitik]

how much is the linux software

 

free

[Orgasm Donor]

 

free

 

 

thanks sir

[Asus19]

how much is the linux software

 

Free. (Feel free to choose wide variety of distros such as Ubuntu, Mint, Elementary, OpenSuse, Puppy, etc.)

 

Perfect for old computers (even modern computer) lightweight, easy to use (unlike before....bashing sudoing all the way).

 

Pero may ibang linux na may bayad, perfect for enterprise level (Red Hat, etc._

[Captain Guile]

 

free

 

wow! its good to hear that

[K0RN - RETIR3D]

Linux User here at work.

[TheAngelOne]

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