Looping structure to make up for lack of bash GOTO
Hello,
I am re-processing some files when a specific condition is met. The condition is read from the filename. Since files may need to be re-processed a number of times before they no longer meet the condition, I need to know when to stop re-processing. I am having trouble visualizing the proper control structure. What I had in mind was something like,
The above code would nicely keep looping until there were no compliment files found. The somewhat annoying lack of a GOTO statement makes takes this option off of the table, so I need a replacement.
I guess that some kind of a while loop would be the best alternative, but I don't know what bash has to offer for loops other than a do loop.
Can someone make a suggestion for this. I can post more code if that would help.
---------- Post updated at 10:25 PM ---------- Previous update was at 08:44 PM ----------
At the moment, I am trying something like this,
As far as I can tell, this will re-process all files that need it. Re-processing will create a new set of file names. The code will loop back to check the new set of file names to see if anything still needs to be re-processed. The code will keep looping until no file names are found that need to be re-processed.
I still seem to be incapable of writing code without multiple nested loops.
Not having a GOTO is actually very good for structured programming. Think of the process you are trying to achieve and then split every action into simpler steps, then repeat until you can go no smaller.
Each final action should be either in a sequence, a condition or a loop. Using GOTO allows you to write spaghetti that is difficult to follow when you need to trace an error. It's lazy really.
If you write functions for the section of code you may or may not need, then a simple loop at the end actually makes it easier.
or
with which you need to call exit from one of the functions.
The shells sh, ksh, bash etc. are not limited. They work as designed and deny the lazy use of GOTO which can cause more problems than the minor inconvenience it leaves.
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