\n不在outpu工作

Question

嗨，我现在有一个输出：

'root:$6$aYGtvxKp/bl6Fv2y$sdZ3FbdJYQlP8VcfFZT.Y67We5EQmqcHW4I9Gl/3pXp8v4.nu9qMIEkmOcdRuD0lBTvEtnMHosEo7OEaYgG4E0::0:99999:7:::\nbin::17110:0:99999:7:::\ndaemon::17110:0:99999:7:::\nadm::17110:0:99999:7:::\nlp::17110:0:99999:7:::\nsync::17110:0:99999:7:::\nshutdown::17110:0:99999:7:::\nhalt::17110:0:99999:7:::\nmail::17110:0:99999:7:::\noperator::17110:0:99999:7:::\ngames::17110:0:99999:7:::\nftp::17110:0:99999:7:::\nnobody::17110:0:99999:7:::\nsystemd-bus-proxy:!!:17572::::::\nsystemd-network:!!:17572::::::\ndbus:!!:17572::::::\npolkitd:!!:17572::::::\ntss:!!:17572::::::\nsshd:!!:17572::::::\npostfix:!!:17572::::::\nchrony:!!:17572::::::\funky:$1$EgZiG263$4W/wMljYzhOqnupg9cJ7W/:17599:0:99999:7:::\n'

从我的代码：

command = "cat /etc/shadow "
process = os.popen(command)
results = str(process.read())

我试图使它看起来像命令提示符中的表格形式，但由于某种原因，当我将它传输到python时，新行函数“\n”不起作用。我的代码怎么了

Answer 1

您应该直接读取文件：

filename = '/etc/shadow'
with open(filename) as shadowfile:
    content = shadowfile.read()
    # or possibly lines = shadowfile.readlines()

您是试着打印输出，还是只是在解释器中看到了results变量的内容？在后一种情况下，换行符将显示为\p，而print（results）将生成预期的结果

Answer 2

l = 'root:$6$aYGtvxKp/bl6Fv2y$sdZ3FbdJYQlP8VcfFZT.Y67We5EQmqcHW4I9Gl/3pXp8v4.nu9qMIEkmOcdRuD0lBTvEtnMHosEo7OEaYgG4E0::0:99999:7:::\nbin::17110:0:99999:7:::\ndaemon::17110:0:99999:7:::\nadm::17110:0:99999:7:::\nlp::17110:0:99999:7:::\nsync::17110:0:99999:7:::\nshutdown::17110:0:99999:7:::\nhalt::17110:0:99999:7:::\nmail::17110:0:99999:7:::\noperator::17110:0:99999:7:::\ngames::17110:0:99999:7:::\nftp::17110:0:99999:7:::\nnobody::17110:0:99999:7:::\nsystemd-bus-proxy:!!:17572::::::\nsystemd-network:!!:17572::::::\ndbus:!!:17572::::::\npolkitd:!!:17572::::::\ntss:!!:17572::::::\nsshd:!!:17572::::::\npostfix:!!:17572::::::\nchrony:!!:17572::::::\funky:$1$EgZiG263$4W/wMljYzhOqnupg9cJ7W/:17599:0:99999:7:::\n'
for i in l.split('\n'):
 print(i)

输出：

root:$6$aYGtvxKp/bl6Fv2y$sdZ3FbdJYQlP8VcfFZT.Y67We5EQmqcHW4I9Gl/3pXp8v4.nu9qMIEkmOcdRuD0lBTvEtnMHosEo7OEaYgG4E0::0:99999:7:::
bin::17110:0:99999:7:::
daemon::17110:0:99999:7:::
adm::17110:0:99999:7:::
lp::17110:0:99999:7:::
sync::17110:0:99999:7:::
shutdown::17110:0:99999:7:::
halt::17110:0:99999:7:::
mail::17110:0:99999:7:::
operator::17110:0:99999:7:::
games::17110:0:99999:7:::
ftp::17110:0:99999:7:::
nobody::17110:0:99999:7:::
systemd-bus-proxy:!!:17572::::::
systemd-network:!!:17572::::::
dbus:!!:17572::::::
polkitd:!!:17572::::::
tss:!!:17572::::::
sshd:!!:17572::::::
postfix:!!:17572::::::
chrony:!!:17572::::::    unky:$1$EgZiG263$4W/wMljYzhOqnupg9cJ7W/:17599:0:99999:7:::