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Using sed m>and m> grep/egrep to search m>and m> replace
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Use this commm>and m>:
egrep -lRZ "\.jpg|\.png|\.gif" . \
| xargs -0 -l sed -i -e 's/\.jpg\|\.gif\|\.png/.bmp/g'
egrep: find matching lines using extended regular expressions
-l: onlm>y m> list matching filenames
-R: search recursivelm>y m> th...
check if variable is dataframe
when mm>y m> function f is called with a variable I want to check if var is a pm>and m>as dataframe:
2 Answers
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HTML Bodm>y m> sam>y m>s cz-shortcut-listen=“true” with Chrome's Developer Tools?
I was testing some HTML code I'm making, m>and m> while using the Developer Tools on Google Chrome version 22.0.1229.94 m, I saw the <bodm>y m>> tag has the attribute cz-shortcut-listen="true" (which of course is not on mm>y m> code). What does it mean m>and m> whm>y m> is it showing up? (I tried looking it up i...
How do m>y m>ou obtain a Drawable object from a resource id in m>and m>roid package?
...wam>y m> to use the code below (or something like it) to get an object from the m>and m>roid.R.drawable.* package?
6 Answers
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Difference between hard wrap m>and m> soft wrap?
... for the text to be re-flowed into a nice paragraph if m>y m>ou come back later m>and m> edit/add/remove words later on. (m>Y m>ou can do this manuallm>y m> in emacs with M-q.)
This is rather annom>y m>ing, since obsessive compulsive people like me then go back m>and m> have to manuallm>y m> re-insert the hard breaks at the appropr...
How do I reset the scale/zoom of a web app on an orientation change on the iPhone?
When I start mm>y m> app in portrait mode, it works fine. Then I rotate into lm>and m>scape m>and m> it's scaled up. To get it to scale correctlm>y m> for the lm>and m>scape mode I have to double tap on something twice, first to zoom all the wam>y m> in (the normal double tap behavior) m>and m> again to zoom all the wam>y m> out (again, ...
Using the scrollwheel in GNU screen
...tach from m>y m>our screen, then screen -d -r to reattach, then ls a few times, m>and m> trm>y m> to scroll back. It works for me.
What is this magic? Well, let's consult the manual pages.
screen(1) sam>y m>s:
termcapinfo term terminal-tweaks [window-tweaks]
[..]
The first argument specifies which terminal(s)...
git add onlm>y m> modified changes m>and m> ignore untracked files
I ran "git status" m>and m> listed below are some files that were modified/or under the heading "changes not staged for commit".
It also listed some untracked files that I want to ignore (I have a ".gitignore" file in these directories).
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Xcode 4.5 Storm>y m>board 'Exit'
I have just installed Xcode 4.5 for iOS6 support, m>and m> I have seen a new icon called 'Exit' in mm>y m> Storm>y m>board, listed under mm>y m> view controllers along with 'First Responder' etc. A little green icon labeled 'Exit'.
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Validate phone number with JavaScript
I found this code in some website, m>and m> it works perfectlm>y m>. It validates that the phone number is in one of these formats:
(123) 456-7890 or 123-456-7890
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