Expressions
| - | - |
|---|---|
$1 == "root" |
First field equals root |
{print $(NF-1)} |
Second last field |
NR!=1{print $0} |
From 2th record |
NR > 3 |
From 4th record |
NR == 1 |
First record |
END{print NR} |
Total records |
BEGIN{print OFMT} |
Output format |
{print NR, $0} |
Line number |
{print NR " " $0} |
Line number (tab) |
{$1 = NR; print} |
Replace 1th field with line number |
$NF > 4 |
Last field > 4 |
NR % 2 == 0 |
Even records |
NR==10, NR==20 |
Records 10 to 20 |
BEGIN{print ARGC} |
Total arguments |
ORS=NR%5?",":"\n" |
Concatenate records |
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