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What Automatic Resource Management alternatives exist for Scala?
... lines: Try[Seq[String]] =
Using(new BufferedReader(new FileReader("file.txt"))) { reader =>
Iterator.unfold(())(_ => Option(reader.readLine()).map(_ -> ())).toList
}
or using Using.resource avoid Try
val lines: Seq[String] =
Using.resource(new BufferedReader(new FileReader("fi...
Add up a column of numbers at the Unix shell
Given a list of files in files.txt , I can get a list of their sizes like this:
20 Answers
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How to merge two files line by line in Bash
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You can use paste:
paste file1.txt file2.txt > fileresults.txt
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How to get process ID of background process?
...ses you if foo happens to be multiple piped commands (eg. tail -f somefile.txt | grep sometext). In such cases, you will get the PID of the grep command from $! rather than the tail command if that's what you were looking for. You will need to use jobs or ps or the likes in this instance.
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How to create a file in a directory in java?
If I want to create a file in C:/a/b/test.txt , can I do something like:
11 Answers
1...
Batch script to delete files
...You need to escape the % with another...
del "D:\TEST\TEST 100%%\Archive*.TXT"
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Unix's 'ls' sort by name
... 2017 Makefile
-rwxrwxrwx 1 luckydonald luckydonald 4096 Nov 17 23:47 file.txt
So with 9,9 you sort column 9 up to the column 9, being the file names. You have to provide where to stop, which is the same column in this case. The columns start with 1.
Also, if you want to ignore upper/lower case, ...
How to read a file into a variable in shell?
...atform, lowest-common-denominator sh you use:
#!/bin/sh
value=`cat config.txt`
echo "$value"
In bash or zsh, to read a whole file into a variable without invoking cat:
#!/bin/bash
value=$(<config.txt)
echo "$value"
Invoking cat in bash or zsh to slurp a file would be considered a Useless Us...
How do I load the contents of a text file into a javascript variable?
I have a text file in the root of my web app http://localhost/foo.txt and I'd like to load it into a variable in javascript.. in groovy I would do this:
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How to read file contents into a variable in a batch file?
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Read file contents into a variable:
for /f "delims=" %%x in (version.txt) do set Build=%%x
or
set /p Build=<version.txt
Both will act the same with only a single line in the file, for more lines the for variant will put the last line into the variable, while set /p will use the first.
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