Contents
Is there a way to read everything from stdin?
You can use: sys.stdin – A file-like object – call sys.stdin.read() to read everything. input(prompt) – pass it an optional prompt to output, it reads from stdin up to the first newline, which it strips. You’d have to do this repeatedly to get more lines, at the end of the input it raises EOFError.
How to prepend a timestamp to each line of output?
UPD: instead of $ (date +”$ {TIMESTAMP_FORMAT}”) it’s better to use $ (exec date +”$ {TIMESTAMP_FORMAT}”) or even $ (exec -c date +”$ {TIMESTAMP_FORMAT}”) too speedup execution. Shameless plug for something I just wrote to solve this exact problem: ets, written in Go. You can find a lot of usage examples on the project page.
How to print and read from stdin in Python?
$ python -c “import sys; sys.stdout.write (sys.stdin.read ())” < stdindemo.py try: while True: print (input ()) except EOFError: pass Again, input reads up until the newline and essentially strips it from the line. print adds a newline. So while they both modify the input, their modifications cancel.
How to write to stdin from sys.stdout?
The complementary method to write to stdout from this input is to simply use sys.stdout.write: $ python -c “print (‘import sys for line in sys.stdin: sys.stdout.write (line)’)” > stdindemo2.py
What’s the difference between stdin and sys in Python?
sys.stdin is a file-like object on which you can call functions read or readlines if you want to read everything or you want to read everything and split it by newline automatically. (You need to import sys for this to work.) If you want to prompt the user for input, you can use raw_input in Python 2.X,…
How to set Firefox as your default browser on Windows?
Go to the Windows Start menu and click the Settings icon. Click Apps, then choose Default Apps on the left pane. Scroll down and click the entry under Web browser. Click on Firefox in the dialog that opens with a list of available browsers. Firefox is now listed as your default browser. Close the Settings window to save your changes.