Questions tagged [unix]
UNIX is both the underlying code and architecture that makes up Mac OS X / iOS as well as a way of interacting with a Mac using the terminal app, X11 app, and various shells like `bash` or `zsh`. Whether you're logging into a mac using `ssh`, using `mdfind` or `tmutil` or using other open source software, you are doing things very much in common with other UNIX operating systems and toolsets such as Linux, GNU, and many, many others too numerous to list.
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How to replace Mac OS X utilities with GNU core utilities?
I found there is some differences between the utility command I used on the mac OSX and linux. I want to make my experience united.
How could I replace all my mac utilities with GNU utilities?
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3
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What is the "rootless" feature in El Capitan, really?
I have just learned about the "Rootless" feature in El Capitan, and I am hearing things like "There is no root user", "Nothing can modify /System" and "The world will end because we can't get root".
...
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How can I mount an ext4 file system on OS X?
Is there a safe, stable application for reading from and writing to ext4 file systems on Mac OS X?
If not, what's the best way to access the contents of an ext4 file system on Mac OS&...
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4
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How do I delete all Terminal mail?
I set up a cronjob a long time ago that now doesn't exist. Whenever I open up Terminal, it now says "You have mail". I have something like 100 messages that all say the same thing. How do I mass ...
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154
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9
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Is there a way to convert audio files in Mac OS X or the command line without using iTunes?
Now, I know I can use iTunes to convert music. But it's quite a pain.. All I'm asking is: Is there anything built into OS X or UNIX for converting files? Right now I simply want to convert .mp4 to ....
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136
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Linux' `ps f` (tree view) equivalent on OSX?
How can I get a tree view like the one below on OSX?
vartec@some_server:~$ ps xf
PID TTY STAT TIME COMMAND
11519 ? S 0:00 sshd: vartec@pts/0
11520 pts/0 Ss 0:00 \_ -bash
...
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89
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8
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How to monitor file access for an OS X application?
I am looking for the OS X corespondent of FileMon, that was later included in ProcessMon.
BTW, it is essential to be able to filter by process.
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88
votes
11
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Copying ISO file to USB drive in OS X?
I have tried to copy an ISO file to a USB drive. I am unable to do it with Disk Utility. How can I copy the ISO file to a USB drive?
But I get the below. I have enough space in the 16GB USB drive for ...
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69
votes
9
answers
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File can't be moved by root on OS X
I tried to move a few files to a subfolder on OS X. One refused to move. It said Operation not permitted. I tried again as root:
$ sudo mv file subfolder/
mv: rename file to subfolder/file: Operation ...
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55
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2
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Unix "ln -s" command not permitted in OSX El Capitan Beta3
I was installing nodejs for Symphony when I hit an "Operation not permitted" error. Anyone know why this happened?
MacBook-Pro-de-XXX:~ XXX$ sudo ln -s /usr/local/bin/node /usr/bin/node
...
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Linux on Mac hardware: How to remove caps lock delay on Apple MacBook Pro aluminum keyboard when booted to Linux
Apple's MacBook Pro has a slight delay on the caps lock key.
That is, the caps lock key has to be held down slightly longer
than normal to register the key press required to engage the caps lock.
This ...
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2
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What is standard for OS X filesystem? e.g. /opt/ vs. /usr/
What does and should go into /opt/ and what should/does go into /usr/? My understanding is that /usr/ used to be for user home directories, but since they exist in /Users/ - what is the purpose now?
...
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As a developer, what will I miss on a Macbook Air? [MBA vs MBP] [closed]
I am an indie game developer. I am in love with the Mackbook Air [13 inch], and want to buy it. I was wondering:
Will I miss the DVD drive, and upgradability if I am choosing a Macbook Air over ...
41
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5
answers
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How can I inspect the environment variables of a running process?
Is there some equivalent (CLI or GUI) to Linux's /proc/$PID/environ feature?
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What is the modern equivalent of "ps aux" on macOS Sierra?
The BSD backend of MacOS has ps built in. The BSD General Commands Manual says that
The biggest change is in the interpretation of the -u option, which now displays processes belonging to the ...
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How do I remove the source (base) from my terminal?
I created some new aliases in my .bashrc file and did
source ~/.bashrc
Now, everytime I open my terminal it always comes with the (base)
How do I remove that?
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1
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Is there a Mac OS X equivalent of the Linux iwconfig command?
I'm looking for a command line tool in Mac OS X that performs the equivalent of the iwconfig command in Linux.
Example:
kirkland@x220:~/src/byobu/byobu$ iwconfig wlan0
wlan0 IEEE 802.11abgn ...
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36
votes
2
answers
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Can I remotely access my Mac from Linux using screen sharing?
I like to access my Mac from work (Linux) and I wonder if it is possible without installing additional software like TeamViewer or ChickenVNC. I also noticed somewhere that it is possible to wake my ...
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3
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Homebrew installed libraries, how do I use them?
I'm a bit confused.
I've installed a bunch of libraries (e.g. vtk, gsl,...) that I need for a c++ project for school. I used homebrew to install them (luckily there were formulas available).
My ...
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How do I change the time format used by ls command line on osx?
I want to make ls display time in ISO format (military format). How can I change this behavior?
On Linux I knew that I could force ls to display time in long format by usin --full-time but this doesn'...
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Can Touch ID unlock a personal SSH key?
Is it possible to use the Touch ID fingerprint reader to unlock my SSH key?
I have a MacBook Pro with Touch Bar, and I have a traditional text passphrase for my SSH key right now.
I have noticed ...
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29
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6
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How to select text with touchpad without pressing the "hard" key?
Now on OS X, when I want to select some text, I have to press the "hard" key on touchpad with thumb and drag through the text with another finger on touchpad. With linux on the same macbook pro, I ...
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Is there a way to access a USB-serial port by the device id, not by the tty.* port?
On linux USB-serial devices create two aliases to its serial port:
/dev/tty* and /dev/serial/by-id/<my_usb_device_id>
Is there a way on OSX to identify a serial port by the USB device id? Both ...
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5
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Cross-Platform File System file sharing between MAC, WINDOWS, LINUX?
I've a laptop with triple boot, Yosemite, Windows 8.1, CentOS 7, and need a partition for sharing files between the 3 os's, i've been using exFAT, as it is supported by OSX & Windows but had some ...
25
votes
1
answer
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To install unbuffer in OSX
There is the terminal command unbuffer in Linux Redhat, for instance.
I did not find it in homebrew.
How can you install unbuffer in OSX Yosemite 10.10.3?
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Is there a native terminal in OS X, without having to load the desktop, window manager, etc? [duplicate]
FOr example, in linux you can boot to a terminal, you don't have to load a desktop, window manager, etc. Is there something like this in Mac OS X? And like in Linux, is it possible to switch to one of ...
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How can I transfer large files from Linux to iPad over a cable or wifi?
I am looking for a way to transfer large files to the iPad without using iTunes or pushing to and pulling from a remote server.
I run an Ubuntu laptop as my only OS at the moment and want to be able ...
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5
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How to find all files that are larger than 1GB on the Mac HD?
It seems that either one of these commands can be used:
sudo find / -size +1G
sudo find / -type f -size +1G
But when it gets to /Volumes, it actually look at all the back up files by Time Machine in ...
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2
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Data Not Backed Up, Partition Type: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF
I was trying to install Linux on my MacBook for class when I bricked my computer, which now in an unbootable state.
I made my partition too small, so I was going to delete and create a larger one. ...
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What are the downsides of putting GNU coreutills first in ${PATH}?
I'm coming from Linux to macOS, and many of my scripts assume GNU versions of the utils provided in GNU coreutils.
I could just put the GNU coreutils bin directory in earlier in $PATH than /bin.
Is ...
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Editing System Preferences via Terminal
Am looking to edit system preferences settings via the command line but cannot for the life of me find the correct names of variables.
In Login Options under Users & Groups, I would like to be ...
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2
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How do I mount Ext4 using OS X Fuse
I installed OS X Fuse on OS X 10.9.4 as outlined in http://osxdaily.com/2014/03/20/mount-ext-linux-file-system-mac/
Unfortunately it does not mount any of my Linux filesystems (on external HD or SD ...
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1
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How could macOS be POSIX compliant without vi?
As macOS is POSIX compliant and Unix certified, why does vi redirects to vim?
As I understand, vim is not POSIX compliant.
So how did Apple obtained a Unix certification without having vi installed on ...
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5
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Mac OS X - How to Symlink /home to /Users
For those of us who dabble in penguins and apples, it seems very worth while to be able to use /home paths either out of habbit or for those odd cases where the value may have been sync'd somewhere ...
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1
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Command line to find bluetooth device's MAC address [duplicate]
Is there a way to get the MAC address of the Bluetooth device in my Mac? I am using a MacBook Pro running macOS High Sierra. I am looking mainly for macOS but the command could also be for another ...
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8
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Can I use an iPad effectively without a computer to dock it to?
I'm interested in buying an iPad, but I'm trying to understand what the implications are of not synchronise/docking it with a computer. I only have Linux (Ubuntu) machines these days; I have nothing ...
Andrew Ferrier
17
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5
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How to automatically mount NFS shares on OS X
I have a NFS server set up on my local LAN running on Arch Linux that I can connect to using OS X Mavericks by issuing the following command in the terminal:
mount -t nfs -o resvport host:/srv/nfs4/...
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10
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Where is "mkpasswd" for OSX?
There is a well-known unix utility called mkpasswd available on many *nix systems.
I was just trying to use it from terminal on an OSX 10.10.5 Yosemite (Early 2015) machine, and it is nowhere to be ...
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Why does OS X add extra '._<filename>' when I tar a directory?
I'd just like to know why if I tar -czf a file/directory, OS X adds **._<filename>** for each file? I see these when I untar in Linux. Or when I work with the uncompressed project in Eclipse ...
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iOS7 won't trust linux computer
iPhone 4S iOS7
Linux Mint
When I plug my phone into my Linux machine I get the following message "Trust this computer?"
No matter how many times I tap "Trust" the message comes up again.
I do not ...
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2
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How to create a USB installer for multiple OS on an OS X system?
I would like to be able to create a disk image (that I can transfer via Disk Utility.app to a large USB storage thumb drive) which is a multiboot installer for provisioning various operating systems ...
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4
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Is it possible to ditch OS X and install BSD on my 3rd Gen Macbook Pro
I would like to run BSD on Mac hardware. I'm unable to locate a version of BSD that runs on any MacBook Pro.
I'd like a native install, replacing OS X entirely and not doing a Boot Camp setup or ...
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3
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Is there an equivalent utility to Linux's tracepath for OS X?
I'm attempting to determine the path MTU from my Mac to various sites, and can't find a built-in utility to accomplish this.
In Linux, I would use a utility like tracepath, but I"m wondering if there ...
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2
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What does 2>&1 | tee mean?
I read the answer by @grg to question “brew formula” installation logs:
brew install <formula> 2>&1 | tee install.log
So where exactly is this install.log file going to end up, and ...
14
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8
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How do I make my 1.5 GHz PowerBook G4 boot from a USB stick?
I actually want to boot Linux but since that is not working I'm thinking some one might know on the Apple end.
If there's a way to boot Mac from a USB stick, then booting another operating system ...
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1
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What is the difference between the sudo and su command?
What is the difference between the sudo and su command? Why does OS X handle these different than Linux?
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Does Mac have something similar to a Linux loop device (alternative to losetup)?
I am trying to work with some CD and hard drive images that I will run inside of QEMU. On Linux, I mount the images using the losetup command, but I notice Mac does not have this.
Is there something ...
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2
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What is the wheel user group for?
The output of groups after sudo bash lists the following groups:
wheel daemon kmem sys tty operator procview procmod everyone staff certusers localaccounts admin com.apple.sharepoint.group.2 ...
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How can I use command+tab to switch between windows of the same app in addition to all the other apps? [duplicate]
Possible Duplicate:
Best app to switch between all open windows (alternatives to Witch)
I would like to see all the windows, including from the same app, when I switch between them (command+tab). ...
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1
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How do I use my existing KeePass database on my new iPad without iTunes on a computer?
I'm a Linux user who bought an iPad. I'm also an Infosec pro who uses the KeePassX password manager. All my passwords are too long to type on the iPad - so I want to use my password manager on iPad. I ...
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