linux - Is netstat -an same as netstat -na? -

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i working on linux, , came across instances netstat -an , netstat -na.

are both same.what significance

both having same effect.

most of programs found on gnu/linux system, netstat, using glibc function getopt parsing command line arguments. that's why have @ documentation of gnu getopt, it's argument syntax follows posix standard. here is: http://www.gnu.org/software/libc/manual/html_node/argument-syntax.html

however, not programs using syntax. shell scripts or programs written in language has no bindings gnu getopt. means question can't answered in general, need check man page if want know exact argument syntax program. netstat uses getopt.


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