Can you use heredocuments to embed AWK in a bash script?

Question

Writing a shell script that pretty much wraps around an Awk script. I\'d like to have my syntax colouring on in the awk section so I feel there must be a better way to embed awk

Answer 1

One way is to let awk read rules from stdin using (heredoc or here string) but process real files or files created by subprocess substitution, like this

awk -f- <(df) <<'EOF'
BEGIN{
    print "test"
}
{print $3}
EOF

-f- should appear before <(df). The delimiter for the heredoc should be quoted so that the $ signs will be passed into awk instead of being expanded.