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I have this command line that I enter into terminal and it works as intended:

dscl . -readall /Users UniqueID | awk '/^RecordName:/ {name=$2}; /^UniqueID: / {if ($2 > 500) print name}'

What I want to do is use sh -c "insert command string here" and when I try and use the above statement, it gives me these errors:

awk: syntax error at source line 1
 context is
    /^RecordName:/ >>>  {name=} <<< 
awk: illegal statement at source line 1
awk: illegal statement at source line 1

Any idea how I would correct this? I need it for a program in objective-c.

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up vote 4 down vote accepted

Single quotes don't prevent variable expansion inside double quotes:

$ echo "a'$RANDOM'"
a'23976'

You could replace $ with \$ or ' with '\'':

$ sh -c "echo a b | awk '{print \$2}'"
b
$ sh -c 'echo a b | awk '\''{print $2}'\'
b

Or use a heredoc:

sh -s <<'END'
echo a b | awk '{print $2}'
END
share|improve this answer
    
Perfect, thank you so much. – John Oct 10 '12 at 23:00

Your awk command does not have a closing '.

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My mistake, I just forgot to add that to the question but had it in my code. – John Oct 10 '12 at 23:01

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