有没有办法在python中的telnet命令中放置一个变量？

Question

is there any way to put the variable posorprom inside the telnet command in python? Here is a peace of my code:

posorprom = prom

tn.write(b"ls /mnt/flash/prom | wc -l\n")

i want to put the variable posorprom inside the command, so i already tried this:

tn.write(b"ls /mnt/flash/" + posorprom + " | wc -l\n")

but it doesnt work. please help me.

Answer 1

Well you seem to concatenate different kinds of strings, since you use raw byte strings for one string, then all the strings must be that:

posorprom = b"prom"
tn.write(b"ls /mnt/flash/" + posorprom + b" | wc -l\n")

Answer 2

posorprom = prom does not set the variable posoprom to "prom", but to the value of the variable prom.

Try posorprom = "prom" instead.

posorprom = "prom" tn.write("ls /mnt/flash/" + posorprom + " | wc -l\\n")