command-line

问题 If I try running python test.py -bf with the below code, I get bar=f and foo=foo1 instead of the desired result ( bar=bar1 and foo=foo1 ). How would I achieve the desired result? import argparse ap = argparse.ArgumentParser(description='test') ap.add_argument('--bar', '-b', nargs='?', const='bar1') ap.add_argument('--foo', '-f', nargs='?', const='foo1') args = ap.parse_args() 来源： https://stackoverflow.com/questions/62747802/argparse-nargs-with-multiple-flags-in-one-dash

问题 I am currently running Wampserver with multiple PHP versions (5.3.8, 5.4.3). Wampserver easily allows you to switch back and forth between the php version you want apache to use. However, I'm having trouble dealing with multiple versions from the CLI. I have projects that require the command line, but some are compatible with php5.4, while some are not. Is there a way to create some type of "alias" in Windows that allows me to specify which version of PHP to use on the command line .. I.E:

问题 I am trying to write a program in C on windows command prompt that I can use to practice touch typing. I want to do this by having the program prompt for a letter and as soon as I have entered a letter, I want it to record whether or not that letter was correct and repeat the process a predefined number of times before exiting and telling me my time and accuracy. Making it work by pressing enter between each letter is easy enough, but I feel like it wont be as helpful as it would be if I didn

问题 Similar to this question I'd like to stop sbt from spamming the shell with messages and blank lines. It stops if I run sbt with the option sbt -Dsbt.supershell=false , but I'd like to disable it globally via a dotfile in ~/.sbt or similar. I could replace the sbt binary with a wrapper which always adds this option, but that seems inelegant. I've tried each of the following in a file called ~/.sbt/1.0/global.sbt and ~/.sbt/1.3/global.sbt , but none have an effect: sbt.supershell := false

问题 Is there a way to put multiple actions under a if condition? Like this: if not exist MyFolderName ( ECHO create a folder mkdir MyFolderName ) 回答1: You can use & to join commands and execute them on the same line. So your syntax should look like: if not exist MyFolderName ECHO "Create a folder" & mkdir MyFolderName UPDATE Or you can use labels to jump to a section containing the commands you want to execute, for example: if not exist MyFolderName GOTO DOFILESTUFF :AFTER ... EXIT :DOFILESTUFF

问题 I have created a customized PMD ruleset xml file to exclude some rule check. <?xml version="1.0" encoding="UTF-8"?> <ruleset xmlns="http://pmd.sourceforge.net/ruleset/2.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="full-pmd-ruleset" xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 http://pmd.sourceforge.net/ruleset_2_0_0.xsd"> <description>Full 5.1.1 PMD rule set</description> <rule ref="rulesets/java/coupling.xml"> <exclude name="LawOfDemeter"/> </rule> <rule

问题 I have created a customized PMD ruleset xml file to exclude some rule check. <?xml version="1.0" encoding="UTF-8"?> <ruleset xmlns="http://pmd.sourceforge.net/ruleset/2.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="full-pmd-ruleset" xsi:schemaLocation="http://pmd.sourceforge.net/ruleset/2.0.0 http://pmd.sourceforge.net/ruleset_2_0_0.xsd"> <description>Full 5.1.1 PMD rule set</description> <rule ref="rulesets/java/coupling.xml"> <exclude name="LawOfDemeter"/> </rule> <rule

问题 How list from the command line URLs requests that are made from the server (an *ux machine) to another machine. For instance, I am on the command line of server ALPHA_RE . I do a ping to google.co.uk and another ping to bbc.co.uk I would like to see, from the prompt : google.co.uk bbc.co.uk so, not the ip address of the machine I am pinging, and NOT an URL from servers that passes my the request to google.co.uk or bbc.co.uk , but the actual final urls. Note that only packages that are

问题 I want to be about to quickly insert some logging into some testing using either (Linux) command line or Python. I don't want to do anything system wide (e.g. re-configuring syslogd). I've done something like this before by doing: wget URL/logme?im=module_name&msg=hello_world And then just parsing the server log file. It's a bit hackish and you have to URL encode all your data. Surely someone has a better way by now. Is there a better way to quickly get some remote logging? 回答1: You can use a

问题 I want to be about to quickly insert some logging into some testing using either (Linux) command line or Python. I don't want to do anything system wide (e.g. re-configuring syslogd). I've done something like this before by doing: wget URL/logme?im=module_name&msg=hello_world And then just parsing the server log file. It's a bit hackish and you have to URL encode all your data. Surely someone has a better way by now. Is there a better way to quickly get some remote logging? 回答1: You can use a