Exemple de automatizari in BASH

Au ramas nepostate cateva scripturi pe care le-am facut de-a lungul timpului pentru conky sau chiar pentru utilizare directa in consola, asa ca, tu, cel care cauta pe google, daca ai ajuns aici, te poti folosi cu incredere de aceste exemple.

Pot fi folosite si pe post de template din care sa te inspiri in creearea altor scripturi BASH.

Monitor internet:

(te poate ajuta la identificarea problemelor de conectare la ISP)

#! /bin/bash
# Script de diagnostic al punctelor importante din conexiunea la internet
# Pentru conexiunea externa am folosit unul din ip-urile google-ului
if ping -c 1 -w 1 209.85.229.104 > /dev/null; then
echo "INTERNET ON"
echo "x" > /tmp/netok
else
echo "INTERNET OFF"
rm -f /tmp/netok
fi
if ping -c 1 -w 1 $(cat /etc/resolv.conf | grep -m 1 nameserver | awk '{ print $2}') > /dev/null; then
echo "DNS/ISP GOOD"
else
echo "DNS/ISP BAD"
fi
if ping -c 1 -w 1 $(route -n | grep 'UG' | cut -d: -f2 | awk '{ print $2}') > /dev/null; then
echo "GATEWAY GOOD"
else
echo "GATEWAY BAD"
fi

Ultimele postari active din forum.ubuntu.ro:

#!/bin/bash
numarlinii=5
wget -q http://forum.ubuntu.ro/rss.php -O /tmp/rss.php
cat /tmp/rss.php | grep "description>Topic:" | cut -d"<" -f2 | cut -d">" -f2 | while read line; do
echo $line | sed 's/Topic: /</'| cut -d"<" -f2 | gawk '{
while (match($0,/&#[0-9]+;/))
$0 = substr($0, 1, RSTART-1) sprintf("%c", substr($0, RSTART+2)+0) \
substr($0, RSTART+RLENGTH)
print
}' >> /tmp/content
done
cat /tmp/content | awk '{
if ($0 in stored_lines)
x=1
else
print
stored_lines[$0]=1
}'| head -n $numarlinii
rm -f /tmp/content
rm -f /tmp/rss.php

Extragerea IP-ului WAN curent:

#!/bin/bash
wget http://checkip.dyndns.org/ -q -O - |
grep -Eo '\<[[:digit:]]{1,3}(\.[[:digit:]]{1,3}){3}\>'

In .conkyrc introduceti:

${if_existing /proc/net/route eth0}${font Ubuntu:size=8}WAN IP: ${execi 60 ~/cnkscr/ipshow}${endif}

Lista calculatoare LAN active:

(inlocuiti ip-urile si numele dupa preferinte)

#! /bin/bash
# Script de diagnostic al lan-ului
# Creat pentru conky de Dan Radu in iunie 2010
#echo "Checking hosts..." | zenity --progress --title="Working..." --auto-close
cat /dev/null > /tmp/lanlist
if ping -c 1 -w 1 192.168.123.5 > /tmp/valoare; then
echo "Laptop WIFI " $(cat /tmp/valoare | grep ttl | awk '{ print $7}' | cut -d"=" -f2 ) "ms" >> /tmp/lanlist
fi
if ping -c 1 -w 1 192.168.123.6 > /tmp/valoare; then
echo "Laptop ETH " $(cat /tmp/valoare | grep ttl | awk '{ print $7}' | cut -d"=" -f2 ) "ms" >> /tmp/lanlist
fi
if ping -c 1 -w 1 192.168.123.3 > /tmp/valoare; then
echo "Desktop1 ETH " $(cat /tmp/valoare | grep ttl | awk '{ print $7}' | cut -d"=" -f2 ) "ms" >> /tmp/lanlist
fi
if ping -c 1 -w 1 192.168.123.4 > /tmp/valoare; then
echo "Laptop2 WIFI " $(cat /tmp/valoare | grep ttl | awk '{ print $7}' | cut -d"=" -f2 ) "ms" >> /tmp/lanlist
fi
if ping -c 1 -w 1 192.168.123.7 > /tmp/valoare; then
echo "Laptop2 ETH " $(cat /tmp/valoare | grep ttl | awk '{ print $7}' | cut -d"=" -f2 ) "ms" >> /tmp/lanlist
fi
rm -f /tmp/valoare
if [ $(wc -l /tmp/lanlist | cut -d" " -f1) -gt 0 ]; then
#txtbuf=$(cat /tmp/lanlist)
cat /tmp/lanlist
rm -f /tmp/lanlist
else
echo "NO KNOWN LAN COMPUTER ONLINE"
rm -f /tmp/lanlist
fi

Lista conexiunilor "TCP-IP Incoming" cu rezolvarea numelui de domeniu:

#!/bin/bash
numarlinii=10
netstat -nat | grep ESTABLISHED | awk '{ print $5}' |cut -d":" -f1 | head -n $numarlinii > /tmp/honk
cat /tmp/honk | while read line; do
whois $(echo $line)| egrep -i "address|netname" > /tmp/whoz
if [ $(wc -l /tmp/whoz | cut -d" " -f1) -gt 0 ]; then
echo $(echo $line)" - "$(cat /tmp/whoz | grep -i netname | awk '{ print $2}') $(cat /tmp/whoz | grep -i address | awk '{ print $2,$3,$4,$5}' ) >> /tmp/listazone
fi
done
if [ -f /tmp/listazone ]; then
echo "nimic" > /dev/null
else
echo "NO CONNECTIONS FOR NOW*"
exit
fi
if [ $(wc -l /tmp/listazone | cut -d" " -f1) -gt 0 ]; then
cat /tmp/listazone
rm -f /tmp/whoz
rm -f /tmp/listazone
else
echo "NO CONNECTIONS FOR NOW"
rm -f /tmp/whoz
rm -f /tmp/listazone
fi

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Facebook notifications pe desktop

Din seria jucarele pentru conky, inca un script util maniacilor.
De data asta, Facebook Notifications :)
In mod normal, conky stie RSS, insa pentru facebook e necesara o oarecare formatare, altfel se umple ecranul inutil.

Ce avem de facut?
Fiecare cont de facebook are asociat un ID, cu ajutorul caruia putem prelua datele.
Ca sa obtinem ID-ul, mergem in cont, la http://www.facebook.com/notifications.php si copiem link-ul catre "Via RSS" ca in imagini si inlocuim in script REPLACE_WITH_URL

Bun. Deschidem gedit si dam copy/paste asta:

#!/bin/bash
numarlinii=5
address="REPLACE_WITH_URL"
wget --user-agent="Mozilla/5.0 (X11; U; Linux i686; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.55 Safari/533.4" -q $address -O /tmp/fbrss
cat /tmp/fbrss | awk '{
gsub(/.*<description>|<\/description>.*/,"")
print }' | grep "<title>" | cut -d"<" -f2 | cut -d">" -f2 | awk '{
gsub(/&apos;s/, "");

gsub(/commented on/, ">");
gsub(/also/, "");
gsub(/your friend request/, "friendship");
gsub(/posted something on/, "-->");
gsub(/posted on/, "-->");
print }' | awk '{
if ($0 in stored_lines)
x=1
else
print

stored_lines[$0]=1
}'| tail -n +2 | head -n $numarlinii
rm -f /tmp/fbrss*

Unde numarlinii reprezinta cate notificari vrem sa se afiseze.
Salvam ca ~/bin/facebook si ii dam drepturi de executie cu chmod +x ~/bin/facebook

Deschidem .conkyrc adaugam si salvam:

${if_existing /proc/net/route eth0}${font Ubuntu:size=8}${color4}Facebook Notifications: ${color}
$stippled_hr
${voffset -2}${font Ubuntu:size=7}${color1}${execi 60 ~/bin/facebook}${color white}
${endif}

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