Not a bad start! The only thing to remember is that pure function application should use let instead of the binding <-. import System.IO import Control.Monad main = do let list = [] handle <- openFile “test.txt” ReadMode contents <- hGetContents handle let singlewords = words contents list = f singlewords print list hClose handle … Read more
I think the main difference I can describe relates to record oriented vs. column oriented formats. Record oriented formats are what we’re all used to — text files, delimited formats like CSV, TSV. AVRO is slightly cooler than those because it can change schema over time, e.g. adding or removing columns from a record. Other … Read more
Put pause at the end of your .BAT file.
I didn’t realize that Log4J ships with an XML appender. Solution was: specify an XML appender in the logging configuration file, include that output XML file as an entity into a well formed XML file, then parse the XML using your favorite technique. The other methods had the following limitations: Apache Chainsaw – not automated … Read more
Yes, creating fake BUILD_ID for process tells Jenkins to ignore this process during detection spawned processes, so this process will be not killed after finishing job. Usage: Enter BUILD_ID=dontKillMe before your command, for example into Execute shell build step: BUILD_ID=dontKillMe nohup ./yourStartScript.sh & Note: See also nohup
If you mean PDB as in a “program database” that the debugger uses: PDB files contain data about a file such as an EXE or DLL that is used to aid in debugging. There are public interfaces that allow you to extract data from the file. See examples here: https://learn.microsoft.com/en-us/archive/blogs/jmstall/sample-code-for-pdb-2-xml-tool (Moved from http://blogs.msdn.com/jmstall/archive/2005/08/25/pdb2xml.aspx) http://www.codeproject.com/KB/bugs/PdbParser.aspx If … Read more
Do you have the following attribute in your AssemblyInfo.cs file: [assembly: log4net.Config.XmlConfigurator(ConfigFile = “Log4Net.config”, Watch = true)] and code like this at the start of each class that requires logging functionality: private static readonly ILog log = LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType); I have a blog post containing this and other info here.
You don’t see anything, because of buffering. The output is shown, when there are enough lines or end of file is reached. tail -f means wait for more input, but there are no more lines in file and so the pipe to grep is never closed. If you omit -f from tail the output is … Read more
From version 2.0, in copy module you can use remote_src parameter. If True it will go to the remote/target machine for the src. – name: Copy files from foo to bar copy: remote_src=True src=/path/to/foo dest=/path/to/bar If you want to move file you need to delete old file with file module – name: Remove old files … Read more
To check if a file doesn’t exist, equivalent to Python’s if not os.path.exists(filename): if _, err := os.Stat(“/path/to/whatever”); errors.Is(err, os.ErrNotExist) { // path/to/whatever does not exist } To check if a file exists, equivalent to Python’s if os.path.exists(filename): Edited: per recent comments if _, err := os.Stat(“/path/to/whatever”); err == nil { // path/to/whatever exists } … Read more