Unix & Linux Stack Exchange by Kiwix

Q&A for users of Linux, FreeBSD and other Un*x-like operating systems

Most popular questions

1500 Why does man print "gimme gimme gimme" at 00:30? 2017-11-20T14:19:31.447

1003 What is the exact difference between a 'terminal', a 'shell', a 'tty' and a 'console'? 2010-11-16T20:06:02.873

765 Why was '~' chosen to represent the home directory? 2012-03-15T00:03:42.613

675 How do I get the size of a directory on the command line? 2015-02-19T17:21:19.370

665 How to correctly add a path to PATH? 2011-12-04T20:57:14.453

580 How can I replace a string in a file(s)? 2014-02-01T17:05:58.360

544 What is the purpose of the lost+found folder in Linux and Unix? 2011-08-05T20:49:11.193

525 How to unfreeze after accidentally pressing Ctrl-S in a terminal? 2011-04-27T12:19:28.247

467 How to copy files from one machine to another using ssh 2013-12-24T09:43:21.737

460 Why is printf better than echo? 2013-02-22T19:49:06.010

427 Preserve bash history in multiple terminal windows 2010-08-26T13:04:56.453

423 Difference between nohup, disown and & 2010-11-09T16:16:04.690

390 How do I grep for multiple patterns? 2012-04-26T01:03:14.610

386 What if 'kill -9' does not work? 2011-01-10T19:51:43.213

375 Repeat a Unix command every x seconds forever 2009-02-17T00:11:13.157

373 Tracking down where disk space has gone on Linux? 2008-08-28T13:17:42.367

369 What do the numbers in a man page mean? 2010-10-28T21:25:15.820

369 When should I not kill -9 a process? 2011-03-09T10:13:04.150

366 How do I zip/unzip on the unix command line? 2011-01-28T15:52:56.213

362 How can I find the implementations of Linux kernel system calls? 2010-08-19T14:26:00.353

361 How to switch between users on one terminal? 2010-10-27T19:38:50.367

360 Check package version using apt-get/aptitude? 2011-01-22T11:40:00.143

351 What are the pros and cons of Vim and Emacs? 2010-08-22T02:49:21.353

341 /usr/bin vs /usr/local/bin on Linux 2011-03-05T17:57:48.897

326 Why am I still getting a password prompt with ssh with public key authentication? 2012-04-16T14:38:49.137

321 Turn off buffering in pipe 2009-06-16T10:27:38.240

320 Why is it better to use "#!/usr/bin/env NAME" instead of "#!/path/to/NAME" as my shebang? 2012-01-21T01:06:33.863

320 How to install a deb file, by dpkg -i or by apt? 2014-10-03T15:52:46.227

318 What does "--" (double-dash) mean? (also known as "bare double dash") 2011-04-15T12:39:08.233

314 In Bash, when to alias, when to script, and when to write a function? 2012-02-05T13:12:39.007

306 Can I zip an entire folder using gzip? 2013-10-01T08:22:45.997

304 How to run find -exec? 2011-05-09T17:35:13.947

302 Execute vs Read bit. How do directory permissions in Linux work? 2011-09-22T12:13:16.413

287 refresh changed content of file opened in vi(m) 2014-08-08T11:28:05.447

280 Zip all files in directory? 2012-11-28T16:43:54.177

280 How to cycle through reverse-i-search in BASH? 2013-04-24T02:07:35.657

278 How can I resolve a hostname to an IP address in a Bash script? 2011-09-15T14:43:48.027

273 What is the difference between /opt and /usr/local? 2011-04-18T08:08:26.970

268 How do I copy a folder keeping owners and permissions intact? 2012-07-20T15:27:33.707

262 Does curl have a --no-check-certificate option like wget? 2013-01-09T14:12:44.983

260 How do I delete a file whose name begins with "-" (hyphen a.k.a. dash or minus)? 2010-09-02T19:30:42.500

257 How to display `top` results sorted by memory usage in real time? 2014-05-11T20:27:35.787

256 How do you empty the buffers and cache on a Linux system? 2013-08-23T12:46:06.933

255 How to forward X over SSH to run graphics applications remotely? 2011-05-06T17:40:31.403

254 How does reverse SSH tunneling work? 2012-08-24T11:02:24.997

252 How does a Segmentation Fault work under-the-hood? 2016-01-25T19:30:02.710

250 Why is Kali Linux so hard to set up? Why won't people help me? 2017-10-21T23:54:02.607

247 What's the story behind Super Cow Powers? 2013-09-24T16:06:44.093

245 How do I remove a user from a group? 2012-01-20T16:29:49.840

245 Using "${a:-b}" for variable assignment in scripts 2014-04-03T00:13:32.667