Showing posts from 2011

erlang module load path how to ERL_LIBS

erl -env ERL_LIBS "/my/path/to/module" export ERL_LIBS=/my/path/to/module erl -pa /my/path/to/module erlc -o /dir/to/save/compiled/file mymodule.erl NOTE:Modules must reside in a file with the same name as the file. NOTE:the lib path will not load if it doesn't contain a ebin dir Example:   /Users/joe/mymodule/ebin $ export ERL_LIBS=/Users/joe/mymodule; erl You can test to see if the path loaded with >code:get_path().

Bash has a Vi mode

Must be a very well kept secret "BASH HAS A VI MODE". set -o vi set -o emacs How I have never come across this before is beyond me

mongodb mongod command line args

smorin$ ./mongod --dbpath ../../mongodata/ --help Allowed options: General options:   -h [ --help ]          show this usage information   --version              show version information   -f [ --config ] arg    configuration file specifying additional options   -v [ --verbose ]       be more verbose (include multiple times for more                          verbosity e.g. -vvvvv)   --quiet                quieter output   --port arg             specify port number   --bind_ip arg          comma separated list of ip addresses to listen on -                          all local ips by default   --logpath arg          log file to send write to instead of stdout - has to                          be a file, not directory   --logappend            append to logpath instead of over-writing   --pidfilepath arg      full path to pidfile (if not set, no pidfile is                          created)   --keyFile arg          private key for cluster authentication (only for          

mongodb mongo command line args

smorin$ ./bin/mongo --help MongoDB shell version: 1.8.1 usage: ./bin/mongo [options] [db address] [file names (ending in .js)] db address can be:   foo                   foo database on local machine       foo database on machine  foo database on machine on port 9999 options:   --shell               run the shell after executing files   --nodb                don't connect to mongod on startup - no 'db address'                         arg expected   --quiet               be less chatty   --port arg            port to connect to   --host arg            server to connect to   --eval arg            evaluate javascript   -u [ --username ] arg username for authentication   -p [ --password ] arg password for authentication   -h [ --help ]         show this usage information   --version             show version information   --verbose             increase verbosity   --ipv6                enable IP

redis redis-cli command line options

There isn't official documentation for the command line arguments as of redis-cli.  If you type --help for the command line arguments you get the following smorin$ ./redis-2.2.4//src/redis-cli --help redis-cli 2.2.4 Usage: redis-cli [OPTIONS] [cmd [arg [arg ...]]]   -h    Server hostname (default:   -p        Server port (default: 6379)   -s      Server socket (overrides hostname and port)   -a    Password to use when connecting to the server   -r      Execute specified command N times   -n          Database number   -x               Read last argument from STDIN   -d   Multi-bulk delimiter in for raw formatting (default: \n)   --raw            Use raw formatting for replies (default when STDOUT is not a tty)   --help           Output this help and exit   --version        Output version and exit Examples:   cat /etc/passwd | redis-cli -x set mypasswd   redis-cli get mypasswd   redis-cli -r 100 lpush mylist x When no command is given, redis-c

redis redis-server command line options

There is only one argument for redis-server.  It's the path to the redis.conf file.  There is a example of this file in the redis src base.  There isn't a official documentation page as of 6/2011 $redis-server /path/to/redis/config/redis.conf

sbcl access command line arguments

$ sbcl --eval '(progn (print *posix-argv*)(quit))' two three

git delete remote branch

This is a simple example where the branch has the same name locally and remotely To create a remote branch git push origin newbranchname To delete a remote branch git push origin :newbranchname

Bash script locate base dir

BASEDIR=$(cd $(dirname $0); cd ../ ;  pwd -P)

Bash script locate self

SELF=$(cd $(dirname $0); pwd -P)/$(basename $0)

emacs emulating vi open line below

Quoted from Stackoverflow - Original Link Below ( love this post, these three are my biggest emacs annoyences) Hi there, I am currently playing around with emacs and happy with most of the concepts. But I really adored the convenience of the three vim commands: dd,o,O Hopefully you can tell me how to mirror them in emacs :) dd  - deletes whole line, including newline, no matter where the cursor is. I found something similar to do the trick: C-a C-k C-k While  C-a  moves the cursor to the beginning of the line, the first  C-k  kills the text, the second one kills the newline. The only problem is that this is not working on empty lines where I only need to type C-k  which is quite inconvenient as I have to use different commands for the same task: killing a line. o / O  - creates a new empty line below / above cursor and moves cursor to the new line, indented correctly Well,  C-a C-o  is nearly like  O , just the idention is missing.  C-e C-o  creates an empty line below the current but

multi line string in bash

Multiline strings can be assigned in bash using one of these two examples. $ String='foo1 foo2 foobar2' STRING=$( cat <<EOF foo1 foo2 foobar2 EOF )

How to change your password in oracle

once you are logged in to sql developer as your userid, just say "alter user {username} identified by {newpassword}"