// Aula 10 - Comandos úteis e avançandos com AWK

# history | awk '{a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head

# awk '/delimitador_inicial/,/delimitador_final/' arquivo.txt

# dmidecode | awk '/Product Name/,/Manufacturer/'

# vim arquivo.txt

45 
45 
5215 
54106 
5045

# awk '!x[$0]++' arquivo.txt

# tail -15000 /var/log/apache2/access.log | awk '{print $1}' | sort | uniq -c | sort -n | tail

# cat /var/log/syslog | awk '{print substr($0,0,12)}' | uniq -c | sort -nr | awk '{printf("n%s ",$0) ; for (i = 0; i<$1 ; i++) {printf("*")};}'

# last  | grep -v "^$" | awk '{ print $1 }' | sort -nr | uniq -c

# apt install net-tools

# netstat -ntu | awk '{print $5}' | cut -d: -f1,2 | sort | uniq -c | sort -n

# netstat -ant | awk '{print $NF,$3,$4,$5}' | grep -v '[a-z]' | sort | uniq -c

# du -d 1 | sort -r -n | awk '{split("KB(s) MB(s) GB(s)",v); s=1; while($1>1024){$1/=1024; s++} print int($1)" "v[s]"t"$2}'