Without redirection, Luc Vu or Erik Konstantopoulos point out to: copy NUL EMptyFile.txt copy /b NUL EmptyFile.txt “How to create empty text file from a batch file?” (2008) also points to: type NUL > EmptyFile.txt # also echo. 2>EmptyFile.txt copy nul file.txt > nul # also in qid’s answer below REM. > empty.file fsutil file … Read more
If you want the output to print to the terminal it is best to use Rscript Rscript a.R Note that when using R CMD BATCH a.R that instead of redirecting output to standard out and displaying on the terminal a new file called a.Rout will be created. R CMD BATCH a.R # Check the output … Read more
Use find: find . find /home/dreftymac If you want files only (omit directories, devices, etc): find . -type f find /home/dreftymac -type f
In Windows/DOS batch files: pause This prints a nice “Press any key to continue . . . ” message Or, if you don’t want the “Press any key to continue . . .” message, do this instead: pause >nul
Is this what you’re looking for tree? It should be in most distributions (maybe as an optional install). ~> tree -d /proc/self/ /proc/self/ |– attr |– cwd -> /proc |– fd | `– 3 -> /proc/15589/fd |– fdinfo |– net | |– dev_snmp6 | |– netfilter | |– rpc | | |– auth.rpcsec.context | | … Read more
It’s the section that the man page for the command is assigned to. These are split as General commands System calls C library functions Special files (usually devices, those found in /dev) and drivers File formats and conventions Games and screensavers Miscellanea System administration commands and daemons Original descriptions of each section can be seen … Read more
xmllint This utility comes with libxml2-utils: echo ‘<root><foo a=”b”>lorem</foo><bar value=”ipsum” /></root>’ | xmllint –format – Perl’s XML::Twig This command comes with XML::Twig perl module, sometimes xml-twig-tools package: echo ‘<root><foo a=”b”>lorem</foo><bar value=”ipsum” /></root>’ | xml_pp xmlstarlet This command comes with xmlstarlet: echo ‘<root><foo a=”b”>lorem</foo><bar value=”ipsum” /></root>’ | xmlstarlet format –indent-tab tidy Check the tidy package: echo … Read more
grep -nr ‘yourString*’ . The dot at the end searches the current directory. Meaning for each parameter: -n Show relative line number in the file ‘yourString*’ String for search, followed by a wildcard character -r Recursively search subdirectories listed . Directory for search (current directory) grep -nr ‘MobileAppSer*’ . (Would find MobileAppServlet.java or MobileAppServlet.class or … Read more
Check these out: http://commons.apache.org/cli/ http://www.martiansoftware.com/jsap/ Or roll your own: http://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html For instance, this is how you use commons-cli to parse 2 string arguments: import org.apache.commons.cli.*; public class Main { public static void main(String[] args) throws Exception { Options options = new Options(); Option input = new Option(“i”, “input”, true, “input file path”); input.setRequired(true); options.addOption(input); Option … Read more
Option 1 After you change PATH with the GUI, close and re-open the console window. This works because only programs started after the change will see the new PATH. Option 2 This option only affects your current shell session, not the whole system. Execute this command in the command window you have open: set PATH=%PATH%;C:\your\path\here\ … Read more