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sbt-assembly: deduplication found error
...park" %% "spark-core" % "1.1.0" % "provided"
If needed, read more at
https://github.com/sbt/sbt-assembly#excluding-jars-and-files
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Efficient way to remove ALL whitespace from String?
...planation as to what this expression means, \s means "match any whitespace token", and + means "match one or more of the proceeding token". Also RegExr is a nice website to practice writing RegEx expressions with, if you want to experiment.
– jrh
Oct 31 '17 at...
Start ssh-agent on login
...cable
if [ -f "${SSH_ENV}" ]; then
. "${SSH_ENV}" > /dev/null
#ps ${SSH_AGENT_PID} doesn't work under cywgin
ps -ef | grep ${SSH_AGENT_PID} | grep ssh-agent$ > /dev/null || {
start_agent;
}
else
start_agent;
fi
This version is especially nice since it will se...
Fast way to discover the row count of a table in PostgreSQL
...s. You can use a subquery with LIMIT:
SELECT count(*) FROM (SELECT 1 FROM token LIMIT 500000) t;
Postgres actually stops counting beyond the given limit, you get an exact and current count for up to n rows (500000 in the example), and n otherwise. Not nearly as fast as the estimate in pg_class, t...
Configuring Git over SSH to login once
...n my .profile and I have .bashrc source .profile:
. .agent > /dev/null
ps -p $SSH_AGENT_PID | grep ssh-agent > /dev/null || {
ssh-agent > .agent
. .agent > /dev/null
}
The .agent file is created automatically by the script; it contains the environment variables definit...
Execute a terminal command from a Cocoa app
...o include this magic line to keep NSLog working:
//The magic line that keeps your log where it belongs
task.standardOutput = pipe;
An explanation is here: https://web.archive.org/web/20141121094204/https://cocoadev.com/HowToPipeCommandsWithNSTask
...
proper way to sudo over ssh
...h to ssh:
ssh -t user@server "sudo script"
See man ssh:
-t Force pseudo-tty allocation. This can be used to execute arbi-
trary screen-based programs on a remote machine, which can be
very useful, e.g., when implementing menu services. Multiple -t
options force...
What is a pre-revprop-change hook in SVN, and how do I create it?
... sure that the new svn:log message is not empty.
set bIsEmpty=true
for /f "tokens=*" %%g in ('find /V ""') do (
set bIsEmpty=false
)
if "%bIsEmpty%" == "true" goto ERROR_EMPTY
goto :eof
:ERROR_EMPTY
echo Empty svn:log messages are not allowed. >&2
goto ERROR_EXIT
:ERROR_PROPNAME
echo Only ...
POST JSON to API using Rails and HTTParty
...ave an api and instructions as follows. You need to authenticate and get a token and then submit the ticket with the token. From squishlist.
...
How to insert tab character when expandtab option is on in Vim
...andtab option from within Vim as below:
:set expandtab!
or
:set noet
PS: And set it back when you are done with inserting tab, with "set expandtab" or "set et"
PS: If you have tab set equivalent to 4 spaces in .vimrc (softtabstop), you may also like to set it to 8 spaces in order to be able t...