I’m trying to write a program that can compare two files line by line, word by word, or character by character in C. It has to be able to read in command line options -l, -w, -i or –… if the option is -l, it compares the files line by line. if the option is … Read more
You have several options to set up variables from outside your makefile: From environment – each environment variable is transformed into a makefile variable with the same name and value. You may also want to set -e option (aka –environments-override) on, and your environment variables will override assignments made into makefile (unless these assignments themselves … Read more
Restartable mode (/Z) has to do with a partially-copied file. With this option, should the copy be interrupted while any particular file is partially copied, the next execution of robocopy can pick up where it left off rather than re-copying the entire file. That option could be useful when copying very large files over a … Read more
You can use eval to execute a string:
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: usage from command line:
Just like any other simple command, [ … ] or test requires spaces between its arguments. Or Suggestions When in Bash, prefer using [[ ]] instead as it doesn’t do word splitting and pathname expansion to its variables that quoting may not be necessary unless it’s part of an expression. It also has some other … Read more
You can run gdb with –args parameter, If you want it to run automatically, place some commands in a file (e.g. ‘run’) and give it as argument: -x /tmp/cmds. Optionally you can run with -batch mode.
In Java args contains the supplied command-line arguments as an array of String objects. In other words, if you run your program as java MyProgram one two then args will contain [“one”, “two”]. If you wanted to output the contents of args, you can just loop through them like this…
So this doesn’t seem like a terribly complicated question I have, but it’s one I can’t find the answer to. I’m confused about what the -p option does in Unix. I used it for a lab assignment while creating a subdirectory and then another subdirectory within that one. It looked like this: This is in a private … Read more
I think a more canonical way to do this is via: and argparse supports this version nicely: Of course, if you really want the –arg <True|False> version, you could pass ast.literal_eval as the “type”, or a user defined function …