- #How do i get diskower ship with bash on mac how to
- #How do i get diskower ship with bash on mac mac os
- #How do i get diskower ship with bash on mac portable
I want to add a date variable to my script on Mac OS that will output the current date in YYYYMMDD format. I'd also stay away from using system_profiler in this case, as it takes considerably longer for the output to be generated then when using networksetup. Im fairly new to writing scripts on Mac OS so apologies if the answer is fairly obvious. However, I'd use my first example over this. For example, run netdiscover command sudo netdiscover -i en0 -r 10.106.0.0/16 in my local network would bring the following result: Share. It will send ARP requests and scan the response. The easiest way to get en0, in this example is: networksetup -listallhardwareports | awk '/Wi-Fi/' You can use netdiscover on Mac OS, which is based on ARP packets. Looking at the relevant lines of output: Hardware Port: Wi-Fi After decades of repetition, my fingers can type it while my mind is working on other things.In your question I know you used networksetup -listnetworkserviceorder however I'd use networksetup -listallhardwareports instead as it's easier to parse the output using awk, by itself, with a minimum of coding so as to avoid multiple pipes using several other commands as offered in the other answer and should be robust enough to produce consistent output until Apple changes the output format of networksetup -listallhardwareports, if they ever do.Īs an example on my system, networksetup -listallhardwareports shows the following: $ networksetup -listallhardwareports Personally, I'll more often use the traditional cut -d: -f1 /etc/passwd at the command line. Thanks.įootnote ²: What I recommend and what I do may differ. If you have to pick one, I'd recommend getent passwd | cut -d: -f6 for shell scripts.²įootnote ¹: I haven't used MacOS in a bit, so if someone can confirm for me that I got the syntax right (and the output doesn't include any stray colons that would mess up cut), that'd be great.
#How do i get diskower ship with bash on mac portable
The long answer tries everything, so it will work on pretty much any UNIX system, regardless of whether it uses the newer /etc/nf (both GNU/Linux and BSD come with getent), the traditional UNIX passwd flat file, MacOS's Directory Services¹ ( dscl), or even the older, cat-themed MacOS X releases and NeXTSTEP ( nidump).īut, how portable do you need? Unix has many ways of doing things and sometimes simpler suffices. ls /Users dsAttrTypeNative:homeDirectory ||Ĭat /etc/passwd) 2>/dev/null | cut -d: -f6 In that case, do this: (getent passwd ||ĭscl. If you're extremely concerned about portability, you might not even be able to rely on other machines having bash. Instead see bash(1) for documentation and read the section on Programmable Completion. As a shell builtin, compgen does not have its own man page. That's such a common usage, it can be abbreviated compgen -u. You can click any one of the dropdowns and set it to Launchpad. At the bottom of the window, click the Hot Corners button.
Since you're using bash, you can list all possible completions for ~ using compgen -A user. You can turn it on by opening the System Preferences app from the Dock and clicking on Mission Control.
#How do i get diskower ship with bash on mac how to
So far, I opened it by typing java -jar name.jar in the Terminal. Have you ever opened your computer's terminal or command line Learn what Bash is, what it's used for, how it helps developers & how to get started with Bash. Tcsh, fish and yash are three other shells that can complete user names (for instance when completing ~ arguments), but it doesn't look like they let you obtain that list of user names programmatically. jar file for a terminal game Ive been working on.
That only works when zsh is interactive though. (note that it doesn't mean those users can login to the system or their home directory have been created, but that they are known to the system, they can be translated to a user id).įor databases that can't be enumerated, you can try and query each possible user id individually: getent passwd 'įor getent passwd ( $e for the user names), or: perl -le 'for ($i=0 $i %s\n' list users with their home directory. The user name itself is in the first field, so for the list of user names: getent passwd | cut -d: -f1 This page shows how to check or find out your bash shell version running on a BSD, Linux, macOS, and Unix-like operating systems. Would list the home directories (the 6 th colon delimited field) of all the users in databases that can be enumerated. How do I find the version of bash I am running on macOS Apple desktop, MacBook or Ubuntu Linux server Introduction Knowing bash version can help to see if the specific feature will work with your system or not. Many systems have a getent command to list or query the content of the Name Service databases like passwd, group, services, protocols.
0 kommentar(er)
