Questions about the command line and other Unix-like aspects of Mac OS X, including the Mach/BSD-based kernel and FreeBSD-based userland. You may want to consider using Ask Different instead.

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Recover Linux ext4 partition formatted to hfs+

I have a Linux partition formatted to ext4 and I accidentally formatted it with Mac OS X Disk Utility to HFS+ (Mac OS X Extended Journaled). I tried to recover it with http://www.r-studio.com/ on ...
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2answers
280 views

mlbackup / rsync / hard links data size

I am new to mlbackup/rsync and the concept of hard links, so I am a little confused after creating a backup data set via mlbackup. So here's the scenario: I am backing up "folder A" to "folder B". ...
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1answer
596 views

Bash script to hide/show files

I prepared a little bash script to toggle the visibility of my hidden OS X files. if (defaults write com.apple.finder AppleShowAllFiles FALSE); then defaults write com.apple.finder ...
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1answer
827 views

Sending raw video stream over network to an encoder

I'm trying to build a setup using OS X machines for streaming live video. Currently I use Flash Media Live Encoder on the same machine that is handling the video input unfortunately because FMLE uses ...
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vote
1answer
703 views

Where would I find where an .htaccess file is located and being used on a Mac OS X Lion server that sets Basic Auth on an Apache server?

I've installed some software, namely, a continuous integration (CI) server (Jenkins) on a Mac Mini running Lion Server. The server, by default, runs from port 8080 on local host via the url: ...
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5answers
5k views

Bash in Linux v.s Mac OS

I am buying an iMac. I've been working on Linux for a long time and I do a bunch of bash scripting. I was wondering if all the bash commands and features are available on Mac OS ? Anyone has any ...
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1answer
4k views

How can I create a shortcut to resize panes in a tmux window?

I am having lots of issues with tmux in mac. Another problem I have is that I can not bind a key in my tmux.conf to be able to resize my panes. What I need is the CTRL-b: resize-pane -U 10 I currently ...
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2answers
122 views

Learning Ubuntu - Testing on Mac OS 10.7?

I'm a beginner in learning Linux. I know that there are many different distributions of Linux including Ubuntu. I consider Mac OS as a distribution of Linux, is that right? My goal in learning Linux ...
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0answers
964 views

lrzsz doesn't working in my Mac OS X

When I was used secureCRT in Windows, I often used sz and rz to transfer files between my linux server and client machine. But I can't use that way in iterm2 in MacOS X. lrzsz package has installed ...
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2answers
5k views

Show human readable file size in du [duplicate]

I'm using this command to determine which directory is eating my disk. du -sk * | sort -n How can I get human readable result form du for file sizes? I've checked man and all it have is -k flag ...
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1answer
6k views

Trying to open a GUI from a remote server using Mac but not succesfully

I'm brand new user in MacOSX. I'm using ssh to connect to some Linux servers. I'm trying to open a GUI locally for a process running in the remote Linux server. So I read that I should install ...
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1answer
165 views

How to use colors/colorschemes/fonts in vim effectively so that the text is as readable as possible

I am trying to be more productive in vim and as part of this I am trying to make the text presentation i.e. colors etc as nice to the eyesight as possible. Although I managed to change the default ...
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2answers
1k views

Key mappings in Linux

What do people mean when they point out that the "keys are not properly mapped" in a Linux installation when working on the command line? Isn't the default installation OK? What extra/specific ...
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3answers
150k views

How to install apt-get or YUM on Mac OS X

I am new to Mac OS command line, I want to use either of apt-get or yum. Can anyone help me to install them and make them successful running?
2
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1answer
221 views

Is it alright to have two PATH variables in .bash_profile

I am trying to setup Metasploit on osx 10.7, but I need to edit my .bash_profile and I noticed something unusual to me. I have been reading about setting the environment variable on ...
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1answer
154 views

ipfw on Mac OS X 10.8

I'm trying to setup local transparent proxy with ipfw and squid and ran into some problems. I have a single rule 00100 fwd 127.0.0.1,3128 log tcp from any to any dst-port 80 but it either gets into ...
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1answer
475 views

MAC bash commands stop working properly

I was trying to install some stuff for scala development on my MAC, and probably I managed broke the shell/terminal while I was mindlessly running some scripts that I don't know. Now when I start the ...
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0answers
205 views

Shorter timeout on I/O errors MacOS X

How do you set a shorter timeout value for read/write I/O errors on MacOSX? We tend to get a few semicrashed disks and want to rsync the contents to a secure location, but when the file subsystem ...
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2answers
11k views

A simpler way of comparing md5 checksum?

After downloading a file that has a md5 checksum available I currently check it with md5 *file* | grep *given_checksum* e.g. md5 file.zip | grep -i B4460802B5853B7BB257FBF071EE4AE2 but it seemed ...
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2answers
1k views

Defragment a USB flash drive on Mac OS X

I frequently create bootable flash drives and many a time large files need to be defragmented in order to boot. On Windows I'd used Contig/WinContig, but I must use OS X for the same purpose now. Are ...
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1answer
460 views

Errors building XScreensaver for X11 (and dependencies) on Mac

I'm building XScreensaver (the X11 version) on Mac OSX and I get the following errors while building/compiling it and its deps. XScreensaver terences-imac:xscreensaver-5.21 MAU$ make gcc -pedantic ...
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2answers
1k views

Moving compiled assembly code to the boot sector of a USB device

I have written a simple operating system and I am trying to test it. I have VirtualBox installed and an eight GB flash drive, so I thought I would just use those. I am not sure how to make the USB ...
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1answer
233 views

Problem building GPG

I'm having a problem building GPG on my system; when I try to run make it fairly well before it suddenly bails out with an error. Here's my latest result from running it: make all-recursive Making ...
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1answer
293 views

Is Mac OS X really SUS compliant?

Internet says that Mac OS X 10.8 has achieved certification to The Open Group UNIX® 03 standard and that it is a compliant system. But a simple test with echo seems to indicate otherwise:  a) The ...
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1answer
2k views

sudo: unable to initialize PAM: No such file or directory

While trying to build the NumPy Python math module with Intel's Math Kernel Library (MKL) on OSX 10.8.3, I was running into some problems with the Accelerate and vecLib frameworks overriding the MKL. ...
3
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1answer
82 views

stat on an encrypted volume in osx takes a long time

My workstation is a MacBook Pro with an SSD. For security reasons, my main volume is encrypted. I ran this command on a folder: time find . -exec stat {} + >/dev/null real 0m5.205s user ...
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0answers
564 views

Convert ASCII-8BIT to UTF-8 using OSX' .bash_profile

When running certain rails scripts in OSX' Terminal, I get warnings such as the following: unable to convert "\xA9" from ASCII-8BIT to UTF-8 for ...
3
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2answers
8k views

Checking if I can reach some ports from my computer

Is there a terminal command or something on OSX that I can use to test if I can reach some ports on a remote server? I know these ports are reachable on that server, because I can access them from ...
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1answer
1k views

Safe to change owner of OS X system folders?

I'm trying to get Homebrew to work. That program's diagnosis tool gives me these suggestions: You should probably chown /usr/local/etc ... You should probably chown them: ...
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0answers
547 views

Why does my Mountain Lion computer have Apache 2.2.22 shut down almost as soon as it starts?

[Sun Apr 21 17:29:00 2013] [notice] caught SIGTERM, shutting down [Sun Apr 21 17:30:15 2013] [warn] Init: Session Cache is not configured [hint: SSLSessionCache] httpd: Could not reliably determine ...
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3answers
2k views

default wordsize in UNIX/Linux

I was inspecting the preprocessed output of my C program and happened to look at the header file wordsize.h It is located in /usr/include/i386-linux-gnu/bits/wordsize.h the file contains only one ...
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2answers
34k views

How to install tar file (jhead) on Mac or Linux machine

I'm new to Linux and tar balls and was wondering how to properly install them on a Mac or Linux machine. I would prefer to know how to install on a mac but I just need some help understanding them. I ...
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2answers
568 views

Calendar.vim E492: Not an editor command: Calendar

I am trying to install the calendar.vim plugin on mac osx snow leopard running gvim. I have pathogen.vim installed, so I followed the instructions on github to install calendar.vim from the terminal: ...
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0answers
344 views

Installing required libs/frameworks/packages for compilation on OSX

I'm trying to compile SmartSim for OSX Lion, and at the moment I'm at the ./configure stage. Here is a dump of what I've managed to get so far: $ ./configure checking for a BSD-compatible install... ...
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1answer
99 views

Losing smtp/pop3/imap access

I have a server running OS X. This server connects to another server, this other one CentOS 6.3, from times to times to collect mail messages over POP3/IMAP and also to send mails using SMTP (exim, on ...
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2answers
193 views

“or” in shell glob

I want to ls the files containing the substring "s1r", "s2r", "s3r" or "s19r" in their filenames. I'm almost there! Botched attempts: ls *s[123][9?]r* The above gives me only files including the ...
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1answer
827 views

How to map terminal shortcut from CTRL-M to another combination

I read in another post that you can type CtrlJ or CtrlM instead of the Return key in the terminal, which is great. But what I want to be able to do, is change that to another combination, for example: ...
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2answers
8k views

Unix vs Mac OS X, Notable Difference

I was searching Unix vs OS X. I found a notable difference at From http://www.unix.com/unix-dummies-questions-answers/919-mac-osx-vs-unix.html OS X is a evolutionary kernel from the MACH and BSD ...
5
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1answer
349 views

Execute multiple bash commands on the output of find

I want to execute some commands using the find -exec option, but I'm not sure what' wrong with this code. Currently, it's only processing the first find result, then getting stuck. I'm using bash in ...
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1answer
101 views

Files replaced with Finder on Mac creating a copy on Samba's .recycle

Scenario: Ad Agency with Samba Server and multiple Mac users, 0 Windows users. vfs objects = recycle recycle:keeptree = yes recycle:repository = /storage/files/.recycle/%U Workflow: Before start ...
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1answer
73 views

mpg321 doesn't autoplay songs

I'm using mpg321 on OSX and I just try to play my songs with mpg321 *.mp3. It plays fine but doesn't play the next song automatically. I have to press some key for it to play which is kind of ...
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4answers
4k views

How to troubleshoot failed X11 forwarding with ssh?

When I try to establish an X11-forwarding connection to myserver, I get the following error: % ssh -X myserver xlogo X11 connection rejected because of wrong authentication. X11 connection rejected ...
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0answers
256 views

Rsync seems to back up files that haven't been opened or changed

I have started using rsync to back some data on my mac to an external HD. It works really well, but I have noticed something odd. Every time I run the command, I get a list of files that haven't been ...
5
votes
0answers
1k views

A real non-“better touch tools” solution for select-to-copy on Mac OS X

I recently moved to Mac. I am missing my X11 copy-paste style. I can't find a way to exactly emulate X11 behavior "select-to-copy", "middle-click-to-paste" globally on Mac OS X. I am aware that this ...
5
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2answers
2k views

remove duplicate files

On my Mac OS X 10.6.7, iTunes duplicated every single file in my music library. Now I have 3,840 files instead of 1,920. The problem is that iTunes didn't simply duplicate the whole folder, but each ...
5
votes
3answers
13k views

Unix mail command not sending email

I'm having trouble trying to send email with the unix mail command. Currently I'm trying this: echo "something" | mail -s "test mail" email@address.com But when I check my email, I haven't received ...
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2answers
184 views

Keep the ssh session

I am using Macbook developing a client application. I want to access server logs, so I opened a shell terminal and established a ssh connection to the server and access the log file there by ...
5
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3answers
3k views

Transferring Files SSH SCP Error Message: 'Stdin: is not a tty'

I am using a Macbook SSH terminal and generated RSA key pairs and uploaded remote id_rsa.pub with approved permissions. I can connect with remote Apache web server. I can create, open, move, modify ...
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1answer
144 views

Why is ./filename required to run executable script? [duplicate]

After creating a Python script file, test.py, in my home directory, and running chmod +x test.py to make it executable, and placing #!usr/bin/env as the file header, I expected to be able to run the ...
0
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1answer
514 views

Can't use peewee on Mac OS X Mountain Lion

I am getting an error when I run Python programs that imports peewee: ImportError: No module named peewee The same program works fine under Ubuntu 12.04. I used pip to install peewee, and it ...