Bash is the Bourne Again SHell, the successor to the classic Unix sh (shell).

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linux + generate new file with specific structure from text file what the best option

in my Linux machine I have the file orig-file.txt this file include now 4 fields but they could be less or more ( this file generate by other application ) I need advice - what the best option to ...
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Why ulimit shows different outputs? [closed]

I am very confused, and I tried a lot but I didn't get any way to overcome from a bug. I am posting the same. I am hoping that someone helps me. My problem is, When I run ulimit -n it shows 12000. ...