AWK, kilka przydatnych poleceń.

Free(BSD)

AWK jest bardzo przydatnym programem (a właściwie językiem programowania). Ale używane rzadko, z uwagi na swoją specyficzną składnie jest trudne w użyciu.

Poniej kilka przykładów wykorzystania tego polecenia:

history | awk -v f=1 -v t=3 '{for(i=1;i<=NF;i++)if(i>=f&&i<=t)continue;else printf("%s%s",$i,(i!=NF)?OFS:ORS)}'

pokazuje tylko polecenia historii bash, bez wypisywania daty i godziny

awk '{print $1 $2}' FILE

pokaż pierwszą i drugą kolumnę

awk '{print $NF}' FILE

pokaż ostatnią kolumnę pliku

https://www.shellhacks.com/awk-print-column-change-field-separator-linux-bash/

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