大约有 41,000 项符合查询结果（耗时：0.0885秒） [XML]
Use ffmpeg to add text subtitles [closed]
...y one supported in an MP4 container and playable by iTunes, Quicktime, iOS etc.
Your line would read:
ffmpeg -i input.mp4 -i input.srt -map 0:0 -map 0:1 -map 1:0 -c:s mov_text output.mp4
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How to replace strings containing slashes with sed?
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add \ before special characters:
s/\?page=one&/page\/one\//g
etc.
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Can regular expressions be used to match nested patterns? [duplicate]
...xpressions can't have niceties such as back references, forward references etc.
– Novikov
Oct 4 '10 at 16:54
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Class does not implement its superclass's required members
... I updated to Xcode 6 beta 5 today and noticed I received errors in nearly all of my subclasses of Apple's classes.
4 Answe...
Diff output from two programs without temporary files
... use >(command) if you want to pipe something into a command.
This is called "Process Substitution" in Bash's man page.
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How do RVM and rbenv actually work?
I am interested in how RVM and rbenv actually work.
5 Answers
5
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How to increase font size in a plot in R?
...xis=1.5, cex.main=1.5, cex.sub=1.5
to your plot, where 1.5 could be 2, 3, etc. and a value of 1 is the default will increase the font size.
x <- rnorm(100)
cex doesn't change things
hist(x, xlim=range(x),
xlab= "Variable Lable", ylab="density", main="Title of plot", prob=TRUE)
hist(x, ...
Find and Replace Inside a Text File from a Bash Command
...g your own compiled programs, other shell scripts, Python and Perl scripts etc.
In this case, there are a couple of ways to do it.
If you want to read a file, and write it to another file, doing search/replace as you go, use sed:
sed 's/abc/XYZ/g' <infile >outfile
If you want to edit the ...
How to break out from a ruby block?
...u want your block to return a useful value (e.g. when using #map, #inject, etc.), next and break also accept an argument.
Consider the following:
def contrived_example(numbers)
numbers.inject(0) do |count, x|
if x % 3 == 0
count + 2
elsif x.odd?
count + 1
else
coun...
Why is auto_ptr being deprecated?
...cs and the magic of rvalue references, it can do so considerably more naturally. It also "fits" with the rest of the standard library considerably better (though, in fairness, some of that is thanks to the rest of the library changing to accommodate move semantics instead of always requiring copying...