How to recover `/usr/lib/jvm` in Ubuntu?
How can I recover from deleting the /usr/share/themes directory?
How do I prevent directories mounted with 'bind' from appearing on 'Devices' on nautilus? I have these lines in the fstab   # binds /media/DataNtfs/Music           /home/can/Music                  none    rw,bind  /media/DataNtfs/Pictures        /home/can/Pictures               none    rw,bind  /media/DataNtfs/Downloads       /home/can/Downloads              none    rw,bind  /media/DataNtfs/Documents       /home/can/Documents              none    rw,bind  /media/DataNtfs/Backups         /home/can/Backups                none    rw,bind  /media/DataNtfs/Notes           /home/can/Notes                  none    rw,bind  /media/DataNtfs/Other           /home/can/Other                  none    rw,bind  /media/DataNtfs/Packages        /home/can/Packages               none    rw,bind  /media/DataNtfs/Photos          /home/can/Photos                 none    rw,bind  /media/DataNtfs/Videos          /home/can/Videos                 none    rw,bind  /media/DataNtfs/WorkSpace       /home/can/WorkSpace              none    rw,bind Merging columns from two separate files What does the underscores in _servicename_ mean in AngularJS tests? I accidentally set an object as camera, how do I undo this? I have an iPhone with 100+ notes that I've collected over the last ten years (thanks to migrating from my PalmPilot). I realize that I can now synchronise these with Gmail, but that doesn't allow me to edit them from my computer. I'd rather switch to use a new app/website combo which allows for online editing of notes, automatic OTA syncing, etc.  It seems like Simplenote and Evernote are two of the better app/sites, as mentioned at  and from this , I think Simplenote is exactly what I'm looking for. The problem is, I can't figure out how to migrate all of my existing notes into whatever new notes app I choose.  How do I migrate my existing Apple iOS Notes into Simplenote or Evernote?  The best workaround I've found so far is to open each note, select all, copy, and create a new note in the iOS app but I'd rather not spend the time and hassle doing this for ~100 notes. If a $\{a_n\}$ diverges, so $a_n \rightarrow + \infty$, how to find sequence $\{b_n\}$ such that $\sum |b_n|<\infty$ but $\sum |a_n||b_n|$ diverges? If we are given any sequence of real numbers $\{a_n\}$ diverges, so $a_n \rightarrow + \infty$, how can we find a sequence $\{b_n\}$ such that $\sum |b_n|$ converges but $\sum |a_n||b_n|$ diverges?  I want to use this fact in another problem but don't immediately see how to prove it. But when I try to run it using  tar zxvf jre-8u151-linux-i586   I get tar (child): jre-8u151-linux-i586: Cannot open: No such file or directory tar (child): Error is not recoverable: exiting now tar: Child returned status 2  What is wrong? The name and place matches prefectly. Upgrading from Yosemite to El Capitan, but not Sierra We have an older iMac (Model A1311, Mid 2011). It has been running Yosemite. We have run into some of the WIFI issues associated with Yosemite.   Is it possible to upgrade to El Capitan but not Sierra?   El Cap has been out longer. Its my wife's computer, its older, and I really don't want to be debugging Sierra until a few  more "dot" releases come out. I am trying to make a custom food recipe. I'm using spawn eggs with /replaceitem because spawn eggs are not obtainable in survival. This works fine when the player crafts only one spawn egg, but when I scroll over multiple spawn eggs, I receive only 1 of the custom food. BTW this food uses custommodeldata, so I can't simply add it into the crafting recipe. I cannot seem to find a way around this. If I make the item non-stackable, such as a piece of armor, mass crafting would be impossible. If I make an item.dropped scoreboard, the player could keep the item and use it to spawn mobs (griefing or for own profit.)  My command:    execute as @a[nbt={SelectedItem:{id:"minecraft:villager_spawn_egg"}}] run replaceitem entity @s weapon  minecraft:melon_slice{CustomModelData:10000101,display:{ Name:"{\"text\":\"Blue Melon Slice\",\"italic\":\"false\"}"}}     My problem is that the command does not see item count, as it is often used for weapons and armor only.    One way I thought to fix this issue is by storing the amount of custom food crafted in a scoreboard item and then giving the player that same count of the custom food, but I do not know how to do this; consequently, I don't know if this works.    Is there a way to do this method, or is there another, simpler method possible? Stein's lemma condition (Apologies if I break some conventions, this is my first time posting!)  I am working on proving Stein's characterization of the Normal distribution: for Z $\sim N(0,1)$ and some differentiable function $f$ with $E[|f'(Z)|] &lt; \infty$, $$E[Zf(Z)] = E[f'(Z)]$$ Writing the LHS expression in integral form and integrating by parts, I eventually obtain: $$E[Zf(Z)] = \frac{1}{\sqrt{2\pi}} \left[ -f(z) \cdot \exp \left\{ \frac{-z^2}{2} \right\} \right] \Bigg|_{-\infty}^{\infty} + E[f'(Z)]$$ Now I need to show that the first expression on the right hand size is zero. Intuitively, this seems clear because of the exponential term, but I am having trouble explicitly applying the condition on $f'$ to prove this rigorously. Any ideas? I'm here with weird stuff again.  How can i continue numbering while changing numbering style to Arabic from Roman? For example let's assume I have total of 7 pages and I want to number the first 3 of them as : i,ii,iii; then I change back to Arabic again and continue counting as 4,5,6,7. I have a valid B1/B2 visa valid to US till March 2019 on Indian passport, I changed my citizenship to Australian. Is my B1/B2 visa on Indian passport valid? sqlite database default time value 'now' Who invented "dooblidoo"? The word  is used by several different youtube channels as a different word for the youtube description bar. I've seen it used by the  and by .  Who was first to use and invent the term? How do I say what is the current UTC in eastern zone Finding Command-Line Arguments of Programs I know that unix has man pages, but is there a place I can look to discover command-line arguments of programs? Going to command prompt and typing notepad /? doesn't give anything. 301 redirect blogspot to an existing domain? Is it possible to redirect a blogspot site to an existing URL?  Note that I don't want to buy a new domain and tell blogspot to use that, eg as per this question: .    Instead I am trying to 301 redirect to an existing website in order to combine the website and the blog in one place.  So it needs to be:  301 example.blogspot.com/post to example.com/blog/post Send values from one form to another form Why lipophilic molecules can pass phospholipid bilayer, in spite of 2 hydrophilic layers? It is commonly told that, hydrophobic/ lipophilic/ nonpolar molecules can quite easily pass phospholipid bilayer, and hydrophilic (polar or ionic) molecules can't pass (when no protein aid that); because hydrophobic nature of the lipid.  But in the same logic, hydrophobic molecules shouldn't pass through the bilayer. Because there are 2 hydrophilic layers in the membrane. i.e.      A and A' .  Then how the hydrophobic molecules can pass through A and A'?   I guess, it is due to thin diameter of A and A' . Is that? Change location of macOS Notification Center alerts? Is it possible to change where macOS Notification Center alerts appear on the screen?  They currently appear at the top right of the screen with the menu bar:    Alerts appearing in the top right tend to cover up work I'm doing more often than not. They cover up browser tabs, toolbar icons, and window titles.  I would prefer, say, the bottom right corner of the screen.  If moving the alerts is not possible, is it possible to change the screen on which they appear?