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How to redirect stderr and stdout to different files in the same line in script?
...most usefully in a bash script. The -s directs the password prompt to the screen.
Hereblock cmds stdout/stderr are sent to seperate files and nothing to display.
sudo -s -u username <<'EOF' 2>err 1>out
ls; pwd;
EOF
Hereblock cmds stdout/stderr are sent to a single file and display.
...
How do I use DateTime.TryParse with a Nullable?
...ateTime is a value type (which is always a nice weed-out question on phone screens :D)
– Ruben Bartelink
Jan 16 '09 at 14:23
...
Is there a “previous sibling” selector?
...ated.
In particular, the flex order property can move elements around the screen.
Here's an example:
You want element A to turn red when element B is hovered.
<ul>
<li>A</li>
<li>B</li>
</ul>
STEPS
Make the ul a flex container.
ul { display: f...
Multiline string literal in C#
...de looks ugly as a single line string argument when I am working with full screen editor. But then verbatim adds other invisible characters to the string itself so I could not find any other way.
– 5argon
May 24 '17 at 10:23
...
What Computer Science concepts should I know? [closed]
...teve Yegge (formerly of Amazon, now at Google):
The Five Essential Phone Screen Questions
It goes into some detail about the the five most important concepts that developers should be required to know:
Basic programming (including recursion, file I/O, formatted output, loops etc)
Object orient...
What is your most productive shortcut with Vim?
...perate over lines of text. ed and ex were written in an era when terminal screens were uncommon and many terminals were "teletype" (TTY) devices. So it was common to work from printed copies of the text, using commands through an extremely terse interface (common connection speeds were 110 baud, o...
Unlimited Bash History [closed]
...default for Ubuntu). If you don't, then certain environments (like running screen sessions) will still truncate your history:
# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
# HISTSIZE=1000
# HISTFILESIZE=2000
Second, add this to the bottom of your .bashrc:
# Eternal bash h...
Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12
...ifies the command only to return a status code, not output anything to the screen. If you ommit the --quiet flag you will see a status output of either active or inactive.
You may also create some swap space to add more available RAM resources to your server such as:
sudo dd if=/dev/zero of=/swap...
Static table view outside UITableViewController
...only way to get a static UITableView along with other controls on the same screen is to use a Container View. Follow this way, it works perfectly:
Drag a ViewController onto your storyboard.
Drag a TableViewController onto your storyboard.
Next Drag a Container view to your ViewController and size...
Android Location Providers - GPS or Network Provider?
...location once.
Request Location using Listener: Use when application is on screen / frontend and require continues location.
Request Location using Pending Intent: Use when application in background and require continues location.
References :
Official site : http://developer.android.com/google/p...