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How to efficiently build a tree from a flat structure?
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realized that if id starts from something big like 1001 then we get index out of bound exception...
– hakan
Feb 21 '17 at 12:53
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Changing variable names in Vim
... will jump to the opposite } thus will select the whole scope.
Press :s/ - start of the substitute command.
<C-R>/ - will insert pattern that match variable name (that name you were on before pressing gd).
/newname/gc<CR> - will initiate search and replace with confirmation on every matc...
Copying PostgreSQL database to another server
...want to resort to a more secure option.
Changes 1, 2, 3 require server restart, change 4 requires reload.
On the target server:
# systemctl stop postgresql@VERSION-NAME
postgres$ pg_basebackup -h SRC_IP -U postgres -D VERSION/NAME --progress
# systemctl start postgresql@VERSION-NAME
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java.net.SocketException: Connection reset
...er(clientSocket.getInputStream()));
int readed = is.read(); // WHERE ERROR STARTS !!!
The interesting thing is for my JAVA Socket if a client connects to my ServerSocket and close its connection without sending anything is.read() calls itself recursively.It seems because of being in an infinite wh...
How to move screen without moving cursor in Vim?
...omewhere just so you can get the cursor back. Or you think you are "here", start typing and it suddenly jumps back to where the cursor was, at which point you can't jump back to where you had scrolled, because only the cursor positions are tracked. Having the cursor follow where you go is arguably a...
How to set JVM parameters for Junit Unit Tests?
...space to run - i.e. 1G. (They test memory-intensive functionality for a webstart app that will only run with sufficient heap-space, and will be run internally on Win 7 64-bit machines - so redesigning the tests isn't a practical suggestion.)
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How to disable margin-collapsing?
...efore, div:after{content: ' '; display: table;}. Fantastic. Suddenly stuff starts to behave as expected.
– Stijn de Witt
Dec 2 '15 at 13:15
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How do I redirect output to a variable in shell? [duplicate]
...tified_file
My way is entirely chronological and logical. The alternative starts with the 4th command and shoves commands 1, 2, and 3 into command substitution.
I have a real world example of this in this script but I didn't use it as the example above because it has some other crazy/confusing/dist...
Find all files with a filename beginning with a specified string?
...as find operates recursively into sub folders.
To use find for only files starting with your string try
find . -name 'abc'*
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Take diff of two vertical opened windows in Vim
...owing up on the earlier answers,
:windo difft (short for diffthis) will start diff mode in all the open windows.
:windo diffo (short for diffoff) will stop diff mode in all the open windows.
I have the following mappings in my vimrc to make it easier:
command! Difft windo diffthis
command! Dif...