I want in Linux, get the stdout of a NodeJS program that is opened, from other NodeJS program or bash.
I have the PID, or name of program and the data, put to function in real time.
Maybe touching files in /proc?
This is possible?
1 Answers
You can use strace -e write -p <pid> to see what output is the program writing to stdout (or other FDs) in real time. It does not show what has been written earlier and it needs a little parsing to extract clean stdout contents.
By default, it truncates shown writes to only 32 characters. To show more, use -s switch:
strace -e write -s 9999 -p <pid>
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