Safe ways to do things in bash

Re:Safe ways to do things in bash by zippitydoodah68 on Tuesday May 15, 2018 @04:03PM (#17077359)

These types of pipelines are why bash and the traditional tools are so maligned. Expert knowledge of sed|(g)awk|bash tools is necessary otherwise you end up with companies telling you that you can't use them.

some_command | gawk ' /some.*regex$/ {gsub(erase_text,"");gsub(erase_more,"");split($2,a,":"); print (length(a[1]) ? a[1] : "STRING ERROR")}'

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Re:Safe ways to do things in bash by freedomben on Tuesday May 15, 2018 @05:48PM (#17078164)

I'll definitely agree that it can get out of hand. If it's a script/tool that will have many eyes on it and people that need to understand it, bash tools probably aren't the best way to go. I usually turn to ruby in those cases. But even for one off commands, I find myself using pipes like that all the time and I'm the only one that will ever see it, so if it's greek it's no problem :-)

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