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How do I read the first line of a file using cat?
...
You don't, use head instead.
head -n 1 file.txt
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What is the difference between Class.getResource() and ClassLoader.getResource()?
...he following are basically equivalent:
foo.bar.Baz.class.getResource("xyz.txt");
foo.bar.Baz.class.getClassLoader().getResource("foo/bar/xyz.txt");
And so are these (but they're different from the above):
foo.bar.Baz.class.getResource("/data/xyz.txt");
foo.bar.Baz.class.getClassLoader().getResou...
Revert changes to a file in a commit
...arlier commit:
For example, you want to revert changes in 1 file (badfile.txt) in commit aaa222:
aaa333 Good commit
aaa222 Problem commit containing badfile.txt
aaa111 Base commit
Rebase on the base commit, amend the problem commit, & continue.
1) Start interactive rebase:
git rebase -i aa...
How to redirect 404 errors to a page in ExpressJS?
...found' });
return;
}
// default to plain-text. send()
res.type('txt').send('Not found');
});
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Bash command to sum a column of numbers [duplicate]
...p float numbers. With cut you can select columns from the input: cat input.txt | cut -d ' ' -f 8 | paste -sd+ | bc -l will add all float numbers in column 8 of the input (space being the field separator).
– Arne
Sep 24 '13 at 14:59
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Create Directory When Writing To File In Node.js
... @chrismarx imagine the following path: "/home/documents/a/b/c/myfile.txt". "/home/documents" exists, while everything in front of it doesn't. When "ensureDirectoryExistence" is called for the 1st time, dirname is "/home/documents/a/b/c". I can't call fs.mkdirSync(dirname) right now because "/h...
More lines in command window
...complement the answer(s) above, its also possible to export the lines to a txt file
using > fileName.txt
For example:
myProgram.exe > output.txt // will create a new file with all the output of myProgram
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read file from assets
...w BufferedReader(
new InputStreamReader(getAssets().open("filename.txt")));
// do reading, usually loop until end of file reading
String mLine;
while ((mLine = reader.readLine()) != null) {
//process line
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}
} catch (IOException e) {
//log the exceptio...
How to do a simple file search in cmd
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dir /b/s *.txt
searches for all txt file in the directory tree. Before using it just change the directory to root using
cd/
you can also export the list to a text file using
dir /b/s *.exe >> filelist.txt
and search wit...
CMake使用教程 - C/C++ - 清泛网 - 专注C/C++及内核技术
...器，生成相应的Makefile或者vcproj项目。通过编写CMakeLists txt CMake是一个比make更高级的编译配置工具，它可以根据不同平台、不同的编译器，生成相应的Makefile或者vcproj项目。
通过编写CMakeLists.txt，可以控制生成的Makefile，从而控...