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I’m using Python with -c to execute a one-liner loop, i.e.: python -c “for r in range(10): print ‘rob'” This works fine. However, if I import a module before the for loop, I get a syntax error: python -c “import sys; for r in range(10): print ‘rob'” File “<string>”, line 1 import sys; for r … Read more
I’m trying to interpolate variables inside of a bash heredoc: var=$1 sudo tee “/path/to/outfile” > /dev/null << “EOF” Some text that contains my $var EOF This isn’t working as I’d expect ($var is treated literally, not expanded). I need to use sudo tee because creating the file requires sudo. Doing something like: sudo cat > … Read more
I have this multi-line string (quotes included): abc’asdf” $(dont-execute-this) foo”bar”” How would I assign it to a variable using a heredoc in Bash? I need to preserve newlines. I don’t want to escape the characters in the string, that would be annoying… 12 Answers 12 You can avoid a useless use of cat and handle … Read more
I needed to write a script to enter multi-line input to a program (psql). After a bit of googling, I found the following syntax works: cat << EOF | psql —params BEGIN; `pg_dump —-something` update table …. statement …; END; EOF This correctly constructs the multi-line string (from BEGIN; to END;, inclusive) and pipes it … Read more
How can I write a here document to a file in Bash script? 10 s 10 Read the Advanced Bash-Scripting Guide Chapter 19. Here Documents. Here’s an example which will write the contents to a file at /tmp/yourfilehere cat << EOF > /tmp/yourfilehere These contents will be written to the file. This line is indented. … Read more
I have the following code in Ruby. I want to convert this code into JavaScript. What is the equivalent code in JS? text = <<“HERE” This Is A Multiline String HERE 4 43
