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rbenv not changing ruby version
... system says:
/usr/bin/ruby
This is NOT the shim used by rbenv, which (on MacOS) should look like:
/Users/<username>/.rbenv/shims/ruby
The shim is actually a script that acts like a redirect to the version of ruby you set.
I recommend that for trouble shooting you unset the project specific ...
How to prevent SIGPIPEs (or handle them properly)
...ou might not want a global signal handler for SIGPIPE.
On most BSD-based (MacOS, FreeBSD...) systems, (assuming you are using C/C++), you can do this with:
int set = 1;
setsockopt(sd, SOL_SOCKET, SO_NOSIGPIPE, (void *)&set, sizeof(int));
With this in effect, instead of the SIGPIPE signal bei...
Running Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 on the same machine
...(if running Windows 7) is using Windows XP mode to set up multiple virtual machines: Testing Multiple Versions of IE on one PC at the IEBlog.
Update 2: (11/2014) There are new solutions since this was last updated. Microsoft now provides VMs for any environment to test multiple versions of IE: Mode...
Network usage top/htop on Linux
... /proc, most features are only available on Linux. NetHogs can be built on Mac OS X and FreeBSD, but it will only show connections, not processes...
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Fastest way(s) to move the cursor on a terminal command line?
...to open the current line in the editor specified by $FCEDIT or $EDITOR or emacs (tried in that order).
If you ran the command earlier, hit Ctrl+r for a reverse history search and type option25 (in this case). The line will be displayed. Hit Tab to start editing at this point.
Use history expansion w...
Removing list of vms in vagrant cache
...well. I was able to fix it by modifying the contents of ~/.vagrant.d/data/machine-index/index. It's in JSON format so I just removed the data related to instances that no longer existed.
I only removed the data that pertained to instances that no longer exist. I wouldn't modify any data that relat...
How can I copy the output of a command directly into my clipboard?
...t gist I demonstrate how to do copy and paste via commandline using Linux, macOS, and Cygwin.
Linux
_copy(){
cat | xclip -selection clipboard
}
_paste(){
xclip -selection clipboard -o
}
macOS
_copy(){
cat | pbcopy
}
_paste(){
pbpaste
}
Cygwin
_copy(){
cat > /dev/clip...
How to add dividers and spaces between items in RecyclerView?
... Activity is not needed. Context is enough
– mac229
Mar 9 '18 at 12:59
This must be the correct answer. Plz, c...
Is errno thread-safe?
...ude file. It says: "Declare the `errno' variable, unless it's defined as a macro by bits/errno.h. This is the case in GNU, where it is a per-thread variable. This redeclaration using the macro still works, but it will be a function declaration without a prototype and may trigger a -Wstrict-prototy...
What is a provisioning profile used for when developing iPhone applications?
...
developer.apple.com/library/mac/documentation/IDEs/Conceptual/… updated Link
– Heckscheibe
Nov 18 '14 at 15:47
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