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What are the options if you want to use parallelism for file operation commands (like CP) on huge amounts of files ? Suppose I want to copy entire structures, but there's lots of files in the complete structure. How can you copy these files in such a way that the whole of it goes significantly...

One of the annoyances that I haven't fixed yet is this: When you use ps -ef the commands are actually capped on line length, by default. I don't know why they are, but actually that suits ... ... because: say you run this: ps -ef | grep whatever (and there are processes with "whatever" in the...

It's the first time I ever noticed - but when I today ran : the resulting processes listed all had a start time of ... last year. I could be wrong, but I recall other systems that show a year indication, ONLY if the relevant process started more than 1 year ago. No matter what date within the...

So you can use backticks to put the result of a command, into a variable. Example: Many years before now - 2023 - I learned that you can do the same with another syntax. This one being: I would prefer the second one because it doesn't use any unusual characters ... like, the backtick. But I...

Question may be simple, but I haven't come up with a simple solution yet. Here it goes: There's a script, and one of the things it does, is launching another Shell. No problem. Now, I would like a given command, or script, to be launched along launching that Shell ... but I want the Shell to...

I had this Bash script I was using on a Red Hat (Oracle really) Linux 7 machine, which was working all fine. Suddenly, without me changing the script (I think), the following happens: The script just runs fine, BUT ... my cursor is gone. It's just not there. I can type, no problem, but you...