Just my notes

show full path of a file

2017-01-30T12:34:00.001-08:00

readlink -f filename

gives the full absolute path. but if the file is a symlink, u'll get the final resolved name.

remove bash history under Linux

2016-01-13T09:30:00.001-08:00

history -c

history -w

vim scp, etc

2016-01-13T09:28:00.001-08:00

vimdiff a.sas scp://user@lpwcsmd1//data/b.sas

note that / is used to separate host and path, so there are two slashes above.

git instaweb

2015-01-21T18:46:00.001-08:00

`git instweb` can open a local http server for a git repo

imapsync all emails to one folder

2014-11-18T11:21:00.001-08:00

use

--regextrans2 "s/.*/folder_on_Bmail\/$&/"

promise in R

2014-10-27T18:50:00.001-07:00

promise in R

#define PROMSXP 5 /* promises: [un]evaluated closure arguments */

reference

pryr

and see `force` in R

see the version number of mac on command line

2014-09-23T07:47:00.001-07:00

$ sw_vers

ProductName: Mac OS X

ProductVersion: 10.9.5

BuildVersion: 13F34

list function in an R package

2014-09-06T11:10:00.001-07:00

> ls('package:rstan')

detect duplicate files

2014-07-09T20:19:00.001-07:00

duff https://github.com/elmindreda/duff

fdupes http://premium.caribe.net/~adrian2/fdupes.html

rdfind http://rdfind.pauldreik.se/

and

http://en.wikipedia.org/wiki/List_of_duplicate_file_finders

latex resizebox in a minipage for tabular with a caption

2014-06-23T16:56:00.001-07:00

We can put tabular to resizebox to easily resize a table in latex.

If it's in a minipage environment, we might need caption package to add captions.

see http://tex.stackexchange.com/questions/124346/latex-error-not-in-outer-par-mode

paste: combine files horizontally

2014-06-12T12:15:00.001-07:00

PASTE(1) BSD General Commands Manual PASTE(1)

NAME

paste -- merge corresponding or subsequent lines of files

SYNOPSIS

paste [-s] [-d list] file ...

count a character in each line

2014-04-30T11:47:00.001-07:00

for example, if I want to check if a CSV file without quotes is valid, something like the following might help:

tr -d -c ',\n' < file | awk '{print length;}' | uniq

capture.output function in R

2014-04-25T11:45:00.001-07:00

Once I was wondering how to return string from function str(). I guess capture.output is one way:

capture.output package:utils R Documentation

Send Output to a Character String or File

Description:

Evaluates its arguments with the output being returned as a

character string or sent to a file. Related to 'sink' in the same

way that 'with' is related to 'attach'.

Usage:

capture.output(..., file = NULL, append = FALSE)

Arguments:

...: Expressions to be evaluated.

vim copy highlighted to

2014-03-25T10:25:00.001-07:00

In order not to retype the pattern that just have been used in search, one can press Ctrl+R, / to automatically insert last search pattern.

from http://stackoverflow.com/questions/6176659/how-to-copy-all-hlsearch-text-to-clipboard-in-vim

Fwd: Mac print to PDF without margin

2014-03-17T06:05:00.001-07:00

We need to create a customized page size of say letter with margins being of zero inch.

diff two folders

2014-03-10T18:25:00.001-07:00

http://www.techrepublic.com/blog/linux-and-open-source/how-to-compare-the-content-of-two-or-more-directories-automatically/

# diff -rq folder1 folder2

backref put page number in the reference list

2014-03-06T08:07:00.001-08:00

\usepackage[pagebackref]{hyperref}

delete all unread message in gmail in a second

2014-01-24T19:11:00.000-08:00

Input in:inbox is:unread to the search box:
select all and then delete.

git flow release a new version

2013-12-27T19:19:00.001-08:00

gitflow how to release a new version

steps can be found here. In particular,

create a release branch

  $ git checkout -b release-2.1 develop

work on the release branch such as bumping up the version
merge to master and develop branch
create a tag

  $ git checkout master  $ git merge --no-ff release-2.1  $ git tag -a v2.1

push the tag, see here

  $ git push origin v2.1

excel on mac using letters to indicate columns

2013-12-19T12:10:00.001-08:00

https://kb.wisc.edu/page.php?id=781

excel -> preference -> general -> use r1c1 reference style (uncheck it)

apple show file extensions

2013-12-18T12:41:00.001-08:00

http://support.apple.com/kb/PH10845

finder->preference->advanced->show all

7za on mac

2013-10-31T18:37:00.001-07:00

7zip

- http://sourceforge.net/projects/p7zip

To zip a file with password:

- 7za a -tzip -pMY_SECRET -mem=AES256 secure.zip doc.pdf doc1.pdf

And unzip the file:

- 7za e secure.zip

git diff no color but special characters

2013-09-22T15:32:00.001-07:00

Change env LESS
See http://goo.gl/gXrNcT

turn off mailapp automatic attachment preview on mac

2013-09-19T13:52:00.001-07:00

http://www.cultofmac.com/218527/turn-off-mailapp-automatic-attachment-preview-os-x-tips/

$ defaults write com.apple.mail DisableInlineAttachmentViewing -bool yes

[note, do not use sudo]

disable mac keyboard

2013-07-16T10:23:00.001-07:00

  sudo kextunload /System/Library/Extensions/AppleUSBTopCase.kext/Contents/PlugIns/AppleUSBTCKeyboard.kext

  sudo kextload /System/Library/Extensions/AppleUSBTopCase.kext/Contents/PlugIns/AppleUSBTCKeyboard.kext  

  
found from http://goo.gl/3bQTj

Just my notes

show full path of a file

remove bash history under Linux

vim scp, etc

git instaweb

imapsync all emails to one folder

promise in R

promise in R

reference

and see force in R

see the version number of mac on command line

list function in an R package

detect duplicate files

latex resizebox in a minipage for tabular with a caption

paste: combine files horizontally

count a character in each line

capture.output function in R

vim copy highlighted to

Fwd: Mac print to PDF without margin

diff two folders

backref put page number in the reference list

delete all unread message in gmail in a second

git flow release a new version

gitflow how to release a new version

steps can be found here. In particular,

excel on mac using letters to indicate columns

apple show file extensions

7za on mac

git diff no color but special characters

turn off mailapp automatic attachment preview on mac

disable mac keyboard

and see `force` in R