Shell Speeds, Bash and PowerShell
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@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@Pete-S said in Shell Speeds, Bash and PowerShell:
If the main objective would be performance, developers would still work with assembler.
The main thing you want is to cut the cost (time) of development, while having adequate performance.This is very true. In most cases, it is developer time, not code time, that we want to save. This is how Ruby rose to prominence while being dog slow (better now.) PHP as well.
I enjoy PHP a lot.
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@Obsolesce said in Shell Speeds, Bash and PowerShell:
@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@Pete-S said in Shell Speeds, Bash and PowerShell:
If the main objective would be performance, developers would still work with assembler.
The main thing you want is to cut the cost (time) of development, while having adequate performance.This is very true. In most cases, it is developer time, not code time, that we want to save. This is how Ruby rose to prominence while being dog slow (better now.) PHP as well.
I enjoy PHP a lot.
PHP is nice, and not too bad for automation. But I'd generally prefer Python or Ruby.
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@Obsolesce said in Shell Speeds, Bash and PowerShell:
What's beyond shell functionality? I don't think I've come to that point or had a need to?
even simple stuff you can probably solve, to a point with awk and jq, are way easier to do in Python, and the more you need to do, the harder it gets to implement in simple scripting languages. These days, if there's something simple to do, I just use ansible, and for anything complex, I just go for python. Even if the task looks simple enough for bash, once you start getting into it, you find yourself wasting time on unneeded bashisms that are totally avoidable with a proper programming language.
And yes, I confess to even writing deep recursion scripts using bash when I was younger and less experienced.
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@dyasny said in Shell Speeds, Bash and PowerShell:
once you start getting into it, you find yourself wasting time on unneeded bashisms that are totally avoidable with a proper programming language.
I just want a freaking array, dammit.
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@scottalanmiller said in Shell Speeds, Bash and PowerShell:
In reality, neither is a screaming fast language. It's just that they are both excellent at specific tasks. Python rocks at automation and scientific programming (but nothing beats R or Fortran for science.) Node rocks at stateless web apps. If speed alone were the concern, C would win, with Java right behind. And languages like Go being pretty high. But those types of languages tend to be very poor for automation writing.
Actually, Java isn't anywhere near C or C++, it's closer to Python, with all the JVM madness and tuning and lack of hardware awareness. Python is also pretty horrible at threading. This is the main reason Go is becoming so popular - it is exactly great at the stuff Python lacks in, especially threading.
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@dyasny yeah, but it does threading at least. Better than nothing. I've done Python threading for this and for remote automation tasks, even bad threading is screaming fast because there is so much latency everywhere else.
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@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@dyasny yeah, but it does threading at least. Better than nothing. I've done Python threading for this and for remote automation tasks, even bad threading is screaming fast because there is so much latency everywhere else.
That, again, depends on what you are automating. Blazing fast distributed systems are a reality, and those are usually not written in Python (yes Openstack is mostly Python, but we all know just what a huge pile of awful it is)
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@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@dyasny said in Shell Speeds, Bash and PowerShell:
once you start getting into it, you find yourself wasting time on unneeded bashisms that are totally avoidable with a proper programming language.
I just want a freaking array, dammit.
Huh? Arrays are easy in PS
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@Obsolesce said in Shell Speeds, Bash and PowerShell:
@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@dyasny said in Shell Speeds, Bash and PowerShell:
once you start getting into it, you find yourself wasting time on unneeded bashisms that are totally avoidable with a proper programming language.
I just want a freaking array, dammit.
Huh? Arrays are easy in PS
Except text processing is not, I don't need an array there because it's already too hard to use!
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@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@Obsolesce said in Shell Speeds, Bash and PowerShell:
@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@dyasny said in Shell Speeds, Bash and PowerShell:
once you start getting into it, you find yourself wasting time on unneeded bashisms that are totally avoidable with a proper programming language.
I just want a freaking array, dammit.
Huh? Arrays are easy in PS
Except text processing is not, I don't need an array there because it's already too hard to use!
What are you trying to do hypothetically?
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@Obsolesce said in Shell Speeds, Bash and PowerShell:
@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@Obsolesce said in Shell Speeds, Bash and PowerShell:
@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@dyasny said in Shell Speeds, Bash and PowerShell:
once you start getting into it, you find yourself wasting time on unneeded bashisms that are totally avoidable with a proper programming language.
I just want a freaking array, dammit.
Huh? Arrays are easy in PS
Except text processing is not, I don't need an array there because it's already too hard to use!
What are you trying to do hypothetically?
Just lots of different kinds of text processing. Any number of bits of data that I'd like to organize. Nothing comes to mind, but it's stuff I have to do regularly.
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@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@Obsolesce said in Shell Speeds, Bash and PowerShell:
@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@Obsolesce said in Shell Speeds, Bash and PowerShell:
@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@dyasny said in Shell Speeds, Bash and PowerShell:
once you start getting into it, you find yourself wasting time on unneeded bashisms that are totally avoidable with a proper programming language.
I just want a freaking array, dammit.
Huh? Arrays are easy in PS
Except text processing is not, I don't need an array there because it's already too hard to use!
What are you trying to do hypothetically?
Just lots of different kinds of text processing. Any number of bits of data that I'd like to organize. Nothing comes to mind, but it's stuff I have to do regularly.
Like text from a CSV or a TXT file?
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@Obsolesce said in Shell Speeds, Bash and PowerShell:
@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@Obsolesce said in Shell Speeds, Bash and PowerShell:
@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@Obsolesce said in Shell Speeds, Bash and PowerShell:
@scottalanmiller said in Shell Speeds, Bash and PowerShell:
@dyasny said in Shell Speeds, Bash and PowerShell:
once you start getting into it, you find yourself wasting time on unneeded bashisms that are totally avoidable with a proper programming language.
I just want a freaking array, dammit.
Huh? Arrays are easy in PS
Except text processing is not, I don't need an array there because it's already too hard to use!
What are you trying to do hypothetically?
Just lots of different kinds of text processing. Any number of bits of data that I'd like to organize. Nothing comes to mind, but it's stuff I have to do regularly.
Like text from a CSV or a TXT file?
Sure, those are good examples.
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^^^ It's always hilarious when a scumbag scammer thinks their input is valuable.
