Three completly different AWK programs:

seq 10 | awk '1 { print }'
seq 10 | awk '/1/ { print }'
seq 10 | awk 'NR==1 { print }'

#Shell #AWK #regex

In AWK an action without associated pattern defaults to 1.
So those two commands are the same:

seq 10 | awk '{print}'
seq 10 | awk '1 {print}'

#Shell #AWK

Three completly different AWK programs:

seq 10 | awk '1 { print }'
seq 10 | awk '/1/ { print }'
seq 10 | awk 'NR==1 { print }'

#Shell #AWK #regex

@lnxw48a1 @bthall Glad you're enjoying the #Awk series. I'm currently planning episode 12. My collaborator's handle is b-yeezi (on #HPR anyway), but I don't believe he's on GS, Mastodon, or whatever

html #barmark #awk #markdown #upmark /cc !foss !freesoftware !p4g

How to Write Complex Awk Patterns using Operators?
https://www.yesik.it/EP13

#AWK #Shell #Linux

seq 10 | awk '{ print > "OUT." NR%2 }'
head OUT.?
Split a file in two parts based on odd/even lines

#AWK #Shell

seq 10 | awk NR%2
Keep odd lines of a file

#AWK #Shell

Converting a text to uppercase from the shell? Is that so simple? Yes, but...
https://www.yesik.it/EP17

You've probably noticed from my accent (pun intended), I'm a French native speaker. So, in this video I show you several classical ways to convert characters to upper case from the shell. And most important, I will explain how and why they work--or don't work--with characters outside the ASCII range.

#Uppercase #Lowercase
#Locale #AccentedLetters
#Sed #Awk #Bash

In #awk a pattern without associated action defaults to '{ print }'
seq 10 | awk /1/ is the same as
seq 10 | awk '/1/ {print}'

#Shell

seq 10 | awk NR%2
Keep odd lines of a file

#AWK #Shell