我正在考虑使用sed来阅读.properties文件，但是想知道是否有更聪明的方式从bash脚本中做？
上述解决方案将适用于基础知识。我不认为它们涵盖多行值。这是一个awk程序，将从stdin解析Java属性，并将shell环境变量生成为stdout：
BEGIN {
FS="=";
print "# BEGIN";
n="";
v="";
c=0; # Not a line continuation.
}
/^\#/ { # The line is a comment. Breaks line continuation.
c=0;
next;
}
/\\$/ && (c==0) && (NF>=2) { # Name value pair with a line continuation...
e=index($0,"=");
n=substr($0,1,e-1);
v=substr($0,e+1,length($0) - e - 1); # Trim off the backslash.
c=1; # Line continuation mode.
next;
}
/^[^\\]+\\$/ && (c==1) { # Line continuation. Accumulate the value.
v= "" v substr($0,length($0)-1);
next;
}
((c==1) || (NF>=2)) && !/^[^\\]+\\$/ { # End of line continuation,or a single line name/value pair
if (c==0) { # Single line name/value pair
e=index($0,"=");
n=substr($0,e-1);
v=substr($0,length($0) - e);
} else { # Line continuation mode - last line of the value.
c=0; # Turn off line continuation mode.
v= "" v $0;
}
# Make sure the name is a legal shell variable name
gsub(/[^A-Za-z0-9_]/,"_",n);
# Remove newlines from the value.
gsub(/[\n\r]/,"",v);
print n "=\"" v "\"";
n = "";
v = "";
}
END {
print "# END";
}
如您所见，多行值使事情变得更加复杂。要在shell中查看属性的值，只需在输出中输入：
cat myproperties.properties | awk -f readproperties.awk > temp.sh source temp.sh
这些变量将在’。’的位置有’_’，所以属性some.property将在shell中为some_property。
如果您有具有属性插值的ANT属性文件(例如’$ {foo.bar}’))，那么我建议使用Groovy与AntBuilder。
