Top new questions this week:

What are common rights for /tmp ? I unintentionnally set it all public recursively

I have abused sudo. I have created a really really short life temporary directory that I wanted to share between some users for a few hours... and I named this directory /some/path/tmp Unfortunately …

/ permissions / chown / tmp

asked by Stephane Rolland 14 votes answered by Gilles 19 votes

Use find result without ./

I'm trying to use find to create a bunch of symlinks but using the result with {} includes ./ before each filename. How can I avoid that? find . -type l -name '*.h' -exec ln -s /sourcedir/{} …

/ find

asked by Mark Robinson 5 votes answered by Stephane Chazelas 4 votes

Can entropy consumption at program start be prevented?

I use Knoppix (or other Live CDs/DVDs) as a secure environment for creating valuable crypto keys. Unfortunately entropy is a limited resource in such environments. I just noticed that each program …

/ linux / kernel / security / glibc / linker

asked by Hauke Laging 5 votes answered by Frederik Deweerdt 7 votes

How can I hook on to one terminal's output from another terminal?

I need to hook onto output of currently running terminal (tty1) from virtual terminal and capture it (running X server). I'm pretty sure such a thing is possible by simpler means than debugging …

/ terminal / tty / terminal-emulator

asked by AoeAoe 4 votes answered by slm 3 votes

Check if folder is a mounted remote filesystem

What is the best way (reliable, portable, etc.) to check if a given folder is on a mounted remote (nfs) filesystem within a shell script? I am looking for a command that would look like: …

/ linux / shell-script / filesystems / mount

asked by Totor 4 votes answered by Totor 2 votes

Detecting X session in a bash script (.bashrc etc.)

Recently I put xset b off to my .bashrc. Now I'm annoyed by the error thet pops up when I log in via tty or via ssh, i.e. outside X session. First thing that came in my mind was [[ -z "$SOME_VAR" ]] …

/ bash / xorg / environment-variables

asked by Alois Mahdal 4 votes answered by Renan 5 votes

How should man pages be installed?

When distributing a custom utility I'll typically write a makefile that installs binaries to /usr/local by default PREFIX ?= /usr/local MANPREFIX ?= ${PREFIX}/man install: install utility …

/ make / man

asked by user23063 4 votes answered by Gilles 1 vote

Greatest hits from previous weeks:

"tar: unrecognized option --warning" during 'apt-get install'

I just ran apt-get upgrade on my debian 5 vps and I got this error: tar: unrecognized option `--warning=no-timestamp' Now when I try to install other packages e.g: imagemagick I get the same …

/ debian / upgrade / apt / tar

asked by DanielZ 10 votes answered by izogi 12 votes

How to set default file permissions for all folders/files in a directory?

I want to set a folder such that anything created within it (directories, files) inherit default permissions and group. Lets call the group "media". And also, the folders/files created within the …

/ permissions / directory

asked by Chris 42 votes answered by Chris 25 votes

Can you answer these?

Path errors when using GNU Stow

I am trying to get started with GNU Stow. I have defined STOW_DIR to point to a personal path: STOW_DIR=/some/path I then build a package of my choice from the tarball and install it under …

/ stow

asked by user815423426 1 vote

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 …

/ x11 / osx / mouse / copy-paste

asked by Bichoy 2 votes

How to prevent killing the X server with CTRL+C using bash traps?

On my Debian Wheezy system, I used to start my X session with the startx command. My .xinitrc file is: exec /usr/bin/awesome --config /home/cscs/.config/awesome/rc.lua >> …

/ bash / session / x-server

asked by dash17291 1 vote