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awk:tldr:5662d
awk: Print the last column of each line in a file, using a comma (instead of space) as a field separator.
$ awk -F ',' '{print $NF}' ${filename}
try on your machine
The command awk -F ',' '{print $NF}' ${filename}
is used to extract the last field from each line of a file.
Here's a breakdown of each part of the command:
awk
: This is the command for theawk
programming language, which is primarily used for text processing.-F ','
: The-F
option is used to specify the field separator. In this case, it's a comma (,
). This means thatawk
will split each line into fields based on the comma delimiter.'{print $NF}'
: This is the mainawk
program. It specifies what action to perform on each line of the file. In this case, it prints the last field ($NF
) of each line.$NF
is a specialawk
variable that represents the last field in a line.
${filename}
: This is the variable that contains the name of the file you want to process. It is typically replaced with the actual filename when running the command.
To summarize, the command awk -F ',' '{print $NF}' ${filename}
uses awk
to separate each line into fields based on commas and then prints the last field of each line.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.