In just a solitary directory, it might be so simple as reading through the whole filelist prior to processing it (and strace can make it seems like That is what happens):
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Distinct ping instructions are carried out otherwise across the different Unixes. So you must concentrate on the version.
This will likely print the PID. If you exit your prompt utilizing ctrl+d then the background work would not Stop, and you may afterwards get rid of The work from any where utilizing kill PID
In fashionable Bash you can do a little something like lure : Time period INT; rest infinity & hold out which complies with both equally of the above mentioned demands.
Does that mean it is properly pinging the IP? Or that it is attempting and failing and seeking all over again? How do I get it to halt?
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Is definitely the CPU idling even though your no-op command executes? You don't want a solution which burns CPU cycles even though doing all your no-op command. Most responses on this site will not reply this dilemma.
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Even though with uncomplicated click here implementations of uncover and readdir, and an OS that generally manufactured new files surface at the end of the listing, there could even certainly be a deterministic infinite loop.
Carrying out AT command interaction from your command line with just plain shell operations is rather unreliable. I advise that you just make an effort to use the program atinout that is exclusively published to problem AT command with the command line:
With the shell’s reasons, a command which exits having a zero exit status has succeeded. A non-zero exit standing indicates failure. This seemingly counter-intuitive plan is applied so there is 1 very well-defined way to indicate achievements and various ways to point numerous failure modes.
I've a system which generates helpful info on stdout but additionally reads from stdin. I wish to redirect its regular output to your file with no supplying everything on common enter. To this point, so great: I can do:
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