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65 votes
14 answers
126k views

Batch convert encoding in files

How can I batch-convert files in a directory for their encoding (e.g. ANSI → UTF-8) with a command or tool? For single files, an editor helps, but how can I do the mass files job?
desolat's user avatar
  • 1,102
648 votes
7 answers
935k views

Permissions on private key in .ssh folder?

I changed my permissions in my .ssh folder and now when I use a piece of software that uses my private key, I have to type my password each time. What should my permissions be on my id_rsa file to ...
user avatar
2 votes
2 answers
4k views

What is a file system which has r/w on all major OSes [duplicate]

Possible Duplicate: Cross-platform filesystem What is a file system which has r/w on all OSes like windows, linux and Mac. Windows comes with FAT and NTFS support and EXT3 support can be added. ...
Sairam's user avatar
  • 242
42 votes
8 answers
32k views

How to pipe text from command line to the clipboard

I'd like to do something like dir *.* > clipboard ie. get to get the standard output of a command line program copied to the clipboard. Can this be done on a standard XP machine without ...
Ville Koskinen's user avatar
12 votes
4 answers
8k views

Watch Filesystem in Real Time on OS X and Ubuntu

I'm looking for a CLI tool which will watch a directory and spit out the names of files that change in real time. some_watch_command /path/to/some/folder | xargs some_callback I'm aware of inotify (...
Adrian Schneider's user avatar
6 votes
2 answers
3k views

OS X keeps "losing" my Linux Samba shares

I have a Linux server (Ubuntu 8.10) and a Macbook (10.5.7). The Linux server has some Samba shares which I mount on the Macbook. They are set to mount on boot using the "Open Applications at Startup" ...
Darren Greaves's user avatar
1 vote
1 answer
964 views

Terminal new window always shows -bash: Searching: command not found

When open terminal, it always shows -bash: Searching: command not found. It does not affect other functions, just each time, even though open a new terminal window, it still pops up at the top of the ...
CarolineGao's user avatar
295 votes
5 answers
144k views

What's the equivalent of Linux's updatedb command for the Mac?

If I want to use the locate command on a Linux machine, I usually run sudo updatedb first to update the database. I can run the locate command on OS X 10.5 but I can't find updatedb. What's the ...
Thierry Lam's user avatar
  • 4,397
91 votes
5 answers
198k views

How do I get the size of a Linux or Mac OS X directory from the command-line? [duplicate]

What command do I use to find the size of all the files (recursively) in a Linux or Mac OS X directory?
Daryl Spitzer's user avatar
22 votes
7 answers
80k views

No /mnt/hgfs in Ubuntu guest under VMWare Fusion

I just installed Ubuntu 13.04 inside of VMware Fusion Pro 5. I have the virtual machine configured for read-only sharing of my home directory, but there's no /mnt/hgfs directory and there's no /etc/...
Lorin Hochstein's user avatar
19 votes
5 answers
16k views

How to list files recursively and sort them by modification time?

How do I list all files under a directory recursively and sort the output by modification time? I normally use ls -lhtc but it doesn't find all files recursively. I am using Linux and Mac. ls -l on ...
qazwsx's user avatar
  • 9,049
16 votes
2 answers
18k views

How do I disable indexing in a specific directory across multiple platforms?

I have some files that will be accessed across several platforms (Mac OS X and Windows 7 mainly, but I wouldn't rule out Linux in the future) and I do not want these files indexed by the search ...
CyberSkull's user avatar
  • 1,495
15 votes
2 answers
24k views

POSTing a file's contents with CURL

(The following is backstory, you can jump down to "Question:" if you'd like) There's a webpage for one of my courses that accepts input text (expected to be Python code) and then gives some tokenized ...
Cornstalks's user avatar
12 votes
5 answers
12k views

Address VMWare Fusion Linux guest by hostname?

I have a Ubuntu Server 9.04 image set up in VMWare Fusion 3.0.0, using the NAT option for the guest's network connection. From the Mac host, I can ssh to the linux guest just fine using it's IP ...
amrox's user avatar
  • 405
11 votes
3 answers
12k views

What is the Unix PATH variable and how do I add to it?

Many programming tutorials ask users to add something to their PATH but don't explain what it is. The existing resources that explain the PATH to users new to the command line are not very good. What ...
Kevin Burke's user avatar
11 votes
3 answers
21k views

Tmux key bindings not working

I installed tmux using homebrew on Mac OSX Lion a while back. Suddenly the keybindings have stopped working. For example if I try Ctrl-b then c (Create new window) it just types c in the terminal ...
HighLife's user avatar
  • 545
8 votes
6 answers
13k views

Which torrent apps work headless (from command line only)?

There's a question on here about what torrent apps work well remotely, but I'm hoping to find out one that works well through a command line interface, preferably with no GUI. What torrent apps ...
jweede's user avatar
  • 6,893
7 votes
6 answers
9k views

Best filesystem for use with multiple OS? [duplicate]

what's the best file system to use with windows, osx, and linux that is not fat32. I need a file system that can share large video files with good performance
user avatar
5 votes
3 answers
6k views

Software to show typed keys on the screen

Just as the capture shows, when you type something using the keyboard, a big label appears at the bottom of the screen showing the keys you typed. I use Windows & Linux, so I just want to know if ...
HaveF's user avatar
  • 153
1 vote
2 answers
718 views

Cross-platform centralized desktop password manager

I have been using KeePass as a desktop password manager on Windows for many years. Love it! However, I am now needing to work on different platforms much of my day (Windows 7, Windows XP, Mac OS X, ...
Dave's user avatar
  • 263
1 vote
2 answers
820 views

Do I need to enable TRIM in all OS if multibooting?

I multiboot. Does one OS issuing TRIM to my SSD cover all partitions or not? I have a MacBook Pro (Core2Duo version 2.1 - late 2007) with the HDD replaced with a SSD. I am multi-booting it with ...
lx07's user avatar
  • 3,008
0 votes
2 answers
9k views

How to interpret TCP/ip fingerprint when scanning for OS?

I run the command : nmap -O ip_address to identify the os and I have the result below: OS:SCAN(V=5.05BETA1%D=8/23%OT=22%CT=1%CU=42341%PV=N%DS=0%DC=L%G=Y%TM=4A91CB OS:90%P=i686-pc-linux-gnu)SEQ(SP=...
ina's user avatar
  • 1
100 votes
2 answers
179k views

How do I clear out the ssh-agent entries (on Mac OS X )?

I'm running Mac OS X, and it appears that after SSHing to several machines, using identity files, my 'ssh-agent' builds up a lot of identity / keys and then sometimes offers too many to a ...
cwd's user avatar
  • 18.3k
85 votes
17 answers
105k views

Untar, ungz, gz, tar - how do you remember all the useful options?

I am pretty sure I am not the only one with the following problem: every time I need to uncompress a file in *nix I can't remember all the switches, and end up googling it, which is surprizing ...
46 votes
1 answer
13k views

What's an elegant way to copy the creation and modification dates of a file to another file?

How can I set the time information of a file to be the same as of another file on OSX / Linux?
GJ.'s user avatar
  • 9,903
33 votes
4 answers
18k views

Moving a file while it's in use -- How does it work?

I've noticed that on non-Windows OS.... ie Linux/Mac I can do things like: Send a zip to a friend over aim Delete the file while it's in transfer And the transfer does not fail. Or, I can do ...
Mario Zigliotto's user avatar
29 votes
3 answers
68k views

What does kill -3 mean?

I know what kill -9 means, but anyone can explain what does kill -3 mean? Is there any special signal it sends out?
user705414's user avatar
  • 1,445
27 votes
4 answers
46k views

Adding a line into the hosts file, getting permission denied when using sudo - Mac

I'm trying to add a line into the hosts file on my Mac by executing a one line command on the terminal. I thought this would be easy using sudo, but it returns "permission denied" when I try to add &...
Mint's user avatar
  • 168
19 votes
2 answers
25k views

Highlighting text in the default Windows CHM viewer

How do I set up the default CHM reader in Windows to highlight text? Is this even possible? When I read ebooks I need to highlight some of the text and it's just not there in the default CHM program....
n1kh1lp's user avatar
  • 353
15 votes
4 answers
41k views

Getting UEFI shell when trying to boot OS X in Virtual Box

I am using the latest test build of Virtual Box (normal versions don't work on El Capitan). When trying to boot a Virtual Machine with an El Capitan cdr file (created from the command line) I end up ...
iProgram's user avatar
  • 653
14 votes
2 answers
13k views

How to force to restart firefox in a clean way?

Many times when I upgrade the system under Linux, firefox pops up a window suggesting to restart the program in order to make effective all the changes. When I ignore that windows because of an ...
Hastur's user avatar
  • 19.1k
12 votes
4 answers
15k views

Rsync over ssh, or something else?

I've been trying to use rsync on OSX to Linux or Unix box over which I don't have much control. I've been doing something like this rsync -avz -e ssh remoteuser@remotehost:/remote/dir /this/dir/ ...
Dan Rosenstark's user avatar
10 votes
4 answers
41k views

How to have multiple windows in a SSH terminal session?

From Mac OSX I login to a remote server that handles parallel computing jobs. I am not able to install anything on this server as it is administered by the university. I have multiple jobs running and ...
Saaru Lindestøkke's user avatar
9 votes
1 answer
2k views

SSH to Vmware virtual machine with NAT network [duplicate]

right now I am able to ssh to host over internet and ssh from host to the virtual machine. What I want to do is ssh directly to the Guest machine from outside. I tried to do this using iptables: ...
Shahin's user avatar
  • 203
9 votes
4 answers
29k views

Mount a HFSPlus disk with read/write permissions in Linux

I realise that this question is similar in nature to this question, but I'm hoping to specifically bring more attention to an additional problem in one of the comments of this answer to that question. ...
kinbiko's user avatar
  • 140
9 votes
2 answers
12k views

hdiutil on Linux

Anyone know of a Linux port of the Mac OS tool hdiutil (http://www.unix.com/man-page/osx/1/hdiutil/)?
psychotik's user avatar
  • 276
9 votes
8 answers
12k views

Bandwidth monitor for Mac OS X?

This is similar to the question: Does software exist to log all download / upload usage? But, I want to know what options are out there for OS X? This includes Dashboard widgets and standard ...
Troggy's user avatar
  • 10.2k
8 votes
1 answer
28k views

OpenSSL and what encryption method to use

I am on OS X 10.8.3, savvy with a command-line and I want to use OpenSSL to start encrypting sensitive information on my MacBook Pro I know that I can use openSSL in a syntax like: openssl enc -aes-...
Jasmine's user avatar
  • 293
6 votes
1 answer
9k views

Route only certain IP range with VPN connection

We are using FortiClient to connect to one of our client's VPN. Unfortunately, FortiClient is routing all the traffic over VPN as default. We have found a way around it, for Linux. After connecting ...
Atais's user avatar
  • 211
6 votes
1 answer
7k views

Rsync is resending all files, because files have different timestamp (off by 1 second?)

I am using rsync to backup files from my Mac laptop to a USB drive (exFAT) on my Windows laptop. The USB drive is shared within my home network, and mounted on my Mac. I noticed a weird problem when ...
barrrista's user avatar
  • 1,729
5 votes
1 answer
3k views

Cross-platform tool for clipboard sharing? [closed]

I'm looking for a tool that will allow me to share the clipboard between multiple systems operating within a LAN. The requirements I have are: It can run on Windows, macOS, and Linux Sharing is ...
Bri Bri's user avatar
  • 866
5 votes
1 answer
789 views

Would firewire networking be better than 100Megabit ethernet?

My office network has a fully switched 1000Megabit ethernet network. I have an Apple iMac with a Gigabit NIC and FireWire, and a Compaq laptop with a 100Megabit NIC and a 4-pin FireWire interface. ...
Josh's user avatar
  • 9,797
4 votes
1 answer
365 views

Do other OS's support ALT-codes?

Do OS's other than Windows support Alt-codes? If I put in Alt+1 for ☺, would I be able to put the same code in on MacOS and Linux and get the same output?
Daniel41550's user avatar
4 votes
1 answer
1k views

Apple shortcuts in Ubuntu

I switch between a Mac and Ubuntu often. On my Ubuntu box, I use an Apple Aluminum keyboard. I'm interested in Apple's "command" key: ⌘.   (I'm not concerned about the hardware control keys.) cmd+...
rcourtna's user avatar
  • 193
4 votes
4 answers
8k views

What is an XPerf alternative for Linux and Mac OS X?

XPerf is a tool that allows you to take a detailed trace of various system activity like CPU, I/O and more... Because of it's detail you can see stack trace counts, disk position offset graphs, ...
Tamara Wijsman's user avatar
4 votes
1 answer
5k views

Getting the full path to a file with "readlink -f" does NOT work on OSX?

On Linux (redhat/ubuntu/you name it), I can do this: $readlink -f myfile.txt /tmp/local/path/to/myfile.txt On OSX (yosemite): $ readlink -f eclipse-projects.xml readlink: illegal option -- f Can ...
One Two Three's user avatar
4 votes
3 answers
12k views

"Argument list too long" error for `rm -rf *` on a directory with 4000 files

I thought this issue was fixed in Linux like 10 years ago. 4000 files really doesn't seem too excessive and should be able to be removed no problem. So this issue clearly exists in OS X - maybe not in ...
timpone's user avatar
  • 853
3 votes
4 answers
1k views

How can I "record" sound directly from an audio file?

What is the easiest way to route an audio output (e.g. a playing song) into the recording input of another application (e.g. discord's microphone input)? I'm looking for a solution that is ...
confetti's user avatar
  • 2,505
3 votes
1 answer
1k views

Keyboard-Shortcut to move windows around on multiscreen setup [duplicate]

Possible Duplicate: How to automagically move windows between monitors with one keystroke? I am looking for a way to move windows around on a multi-screen (usually dual screen) setup. So with a ...
Wolfgang Fahl's user avatar
3 votes
2 answers
3k views

Why must I use sudo for ssh public key authentication to work?

I cannot ssh from my computer (OS X) to my raspberry pi (ubuntu mate), unless I use sudo. I am using a public/private keypair to authenticate. The appropriate public key is added to the ...
IMerin's user avatar
  • 39

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