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How do I script a “yes” response for installing programs?
...rk.
Also, some installers have an "auto-yes" flag. It's -y for apt-get on Ubuntu.
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The shortest possible output from git log containing author and date
...mmand, available on the major open source *nix distributions.
On debian or ubuntu try installing and running as follows:
$ sudo apt-get install tig
For mac users, brew to the rescue :
$ brew install tig
(tig gets installed)
$ tig
(log is displayed in pager as follows, with current commit's hash d...
Difference between -pthread and -lpthread while compiling
...ined when the -pthread option gets used on the GCC package installed on my Ubuntu machine:
$ gcc -pthread -E -dM test.c > dm.pthread.txt
$ gcc -E -dM test.c > dm.nopthread.txt
$ diff dm.pthread.txt dm.nopthread.txt
152d151
< #define _REENTRANT 1
208d206
< #define __USE_REENTRA...
Weighted random numbers
... you can see the relevant lines (/usr/include/c++/5/bits/random.tcc on my Ubuntu 16.04 + GCC 5.3 install):
template<typename _IntType>
void
discrete_distribution<_IntType>::param_type::
_M_initialize()
{
if (_M_prob.size() < 2)
{
_M_prob.cle...
What does 'wb' mean in this code, using Python?
...
This may have changed over time. On Ubuntu 18.04 running Python 3.6.8, the 'binary mode' definitely mattered. I got an error trying to write to a text file (CSV format, not that it ultimately matters that much) that was opened with the wb option. By using the w...
Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
...n -monitor stdio -nographic -serial pipe:/tmp/guestoutput
(I just used the Ubuntu kernel here, but many kernels will work)
When the guest output shows "READY", you can send keys to the VM from the qemu prompt.
For example, to test this assignment, you could do
(qemu) sendkey 1
(qemu) sendkey 4
(qem...
sed: print only matching group
... @DanielDarabos Just mention that ( and ) will not raise error in ubuntu 16.04. So I think this comment is outdated.
– Li haonan
Sep 6 '19 at 20:52
...
How can I test https connections with Django as easily as I can non-https connections using 'runserv
... stunnel). I'll be using version 4 of stunnel (e.g.: /usr/bin/stunnel4 on Ubuntu), version 3 will also work, but has different configuration options.
First create a directory in your Django project to hold the necessary configuration files and SSLish stuff.
mkdir stunnel
cd stunnel
Next we'll n...
How to make shallow git submodules?
...r example:
git clone --recurse-submodules --branch=master -j8 \
https://android.googlesource.com/platform/superproject \
master
git clone --recurse-submodules --branch=master -j8 \
https://android.googlesource.com/platform/superproject \
--reference master master2
fails with:
fatal: ...
How to get a variable name as a string in PHP?
...owever, it does not seem to work in all instances. Result of testing on my ubuntu 18.04 with php 7.2.19: Does not work when used multiple times on the same line of code, irrespective if it is used in one or separate expressions, because then it returns the name of the last variable of the line. If i...