linux - 重击忽略$

我有一个bash脚本，echo在postfix main.cf文件中

IPADD=$(ifconfig  | grep 'inet addr:'| grep -v '127.0.0.1' | cut -d: -f2 | awk '{ print $1}')
cat << EOG > /etc/postfix/main.cf
# LOCAL PATHNAME INFORMATION
queue_directory = /var/spool/postfix
command_directory = /usr/sbin
daemon_directory = /usr/libexec/postfix

# QUEUE AND PROCESS OWNERSHIP
mail_owner = postfix
# SENDING MAIL
myorigin = $mydomain

# RECEIVING MAIL
mydestination = $myhostname localhost.$mydomain localhost $mydomain
# TRUST AND RELAY CONTROL
mynetworks_style = host
smtp_bind_address = $IPADD
inet_interfaces = $IPADD, 127.0.0.1

EOG

问题是运行脚本后，它会从以下位置删除“$mydomain”：

 # SENDING MAIL
    myorigin = $mydomain

并将“$myhostname”和“$mydomain”从

# RECEIVING MAIL
    mydestination = $myhostname localhost.$mydomain localhost $mydomain

我希望$ipadd工作并运行，但希望它忽略$mydomain和$myhostname前面的“$”。
这可能吗？

最佳答案

cat << 'EOG' > /etc/postfix/main.cf
# other stuff
myorigin = $mydomain
# other stuff
EOG

Here Document

关于linux - 重击忽略$，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/16355627/

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linux - 重击忽略$