AWK print AWK command

Shell Programming and Scripting
1 
awk '{print "awk '{sub(/pdb_00/,"pdb_"$0"_00"); print}' pdb_"$0"_00.namd > tempo"; print "mv tempo pdb_"$0"_00.namd"}' datA2.dat > copy_script2.bash

This works when trying to print 'sed etc. etc' but if I switch to using AWK to print a set of AWK commands it doesn't work...

e.g. this WORKS:

awk '{print "sed 's/pdb_00/'pdb_"$0"_00'/g' pdb_"$0"_00.namd > tempo"; print "mv tempo pdb_"$0"_00.namd"}' dat2.dat > copy_script2.bash

Error is

line 3: syntax error at line 4: `(' unexpected
2

Try this:

awk '{print "awk \47{sub(/pdb_00/,"pdb_"$0"_00"); print}\47 pdb_"$0"_00.namd > tempo"; print "mv tempo pdb_"$0"_00.namd"}' datA2.dat > copy_script2.bash

You need to substitute the embedded single quotes with their octal representation.

3

It doesn't work.

Or maybe could I ask, is there a way to get sed to only substitute once (first time) instead of doing it globally?

4

"It doesn't work"? Could you be more specific (see How to Ask Questions the Smart Way)?

Just remove the trailing g from the sed script.