command

-n option with ECHO command in Linux [closed]

由 老子叫甜甜 提交于 2020-05-08 06:12:50
问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . What is the use for the -n flag with the echo command in Linux? echo -n 回答1: man echo -n Do not print the trailing newline character. This may also be achieved by appending `\c' to the end of the string, as is done by iBCS2 compatible systems. Note that this option as well as the

-n option with ECHO command in Linux [closed]

由 ▼魔方 西西 提交于 2020-05-08 06:11:06
问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . What is the use for the -n flag with the echo command in Linux? echo -n 回答1: man echo -n Do not print the trailing newline character. This may also be achieved by appending `\c' to the end of the string, as is done by iBCS2 compatible systems. Note that this option as well as the

'Waiting' animation in command prompt (Python)

由 五迷三道 提交于 2020-05-07 18:34:46
问题 I have a Python script which takes a long time to run. I'd quite like to have the command line output to have a little 'waiting' animation, much like the swirly circle we get in browsers for AJAX requests. Something like an output of a '\', then this is replaced by a '|', then '/', then '-', '|', etc, like the text is going round in circles. I am not sure how to replace the previous printed text in Python. 回答1: Use \r and print-without-newline (that is, suffix with a comma): animation = "|/-\

Is windows command line prompt similar to o/s interpreter?

由 耗尽温柔 提交于 2020-04-11 13:17:10
问题 Is windows command line prompt similar to o/s interpreter? that mean o/s interpreter is command interpreter. command interpreter Is cmd also the interface of the command interpreter? 回答1: Yes. OS/2 is the same as Win NT 4 CMD.exe. In Windows 2000 it was upgraded and this is the current feature version. All references in help to new behaviour is the differences between OS/2-NT4 and Windows 2000. CMD.exe was written by a IBM engineer. She added scripting features common on IBM mainframes to the

can't download github project with curl command

由 纵然是瞬间 提交于 2020-04-07 12:08:06
问题 I used "curl -sO" command to download project files from this GitHub project link: http://github.com/ziyaddin/xampp/archive/master.zip but, I couldn't download. There is error occured and says that: Archive: /home/ziyaddin/Desktop/master.zip [/home/ziyaddin/Desktop/master.zip] End-of-central-directory signature not found. Either this file is not a zipfile, or it constitutes one disk of a multi-part archive. In the latter case the central directory and zipfile comment will be found on the last

oracle 使用sqlplus

由 跟風遠走 提交于 2020-04-07 05:56:00
A Using SQL Command Line This section provides an introduction to SQL Command Line (SQL*Plus), an interactive and batch command-line query tool that is installed with Oracle Database Express Edition. This section contains the following topics: Overview of SQL Command Line Using SQL Command Line For information about running SQL language statements, see Chapter 3, "Using SQL" . See Also: SQL*Plus User's Guide and Reference for complete information about SQL*Plus Oracle Database SQL Reference for information about using SQL statements Oracle Database Express Edition 2 Day DBA for information

How to compile and run in single command in java

由 情到浓时终转凉″ 提交于 2020-03-22 10:48:30
问题 I want to compile and run in the single command line. Usually, we first compile and after the run? javac example.java java example can I run this, javac example.java && java example 回答1: You can use a function : Myfunction() { javac $1.java && java $1 ; } The use : Myfunction example This question is duplicated , please to search before posting See : Compile and build with single command line Java (Linux) Regards 回答2: Since Java 11 you can use a single command java example.java https:/

Ceph 命令行说明

由 旧巷老猫 提交于 2020-03-16 14:10:58
某厂面试归来，发现自己落伍了！>>> 一、Scrub流程设置 1、ceph pg dump命令中输出结果"scrub_stamp"列显示scrub的时间，显示PG的当前状态 2、ceph osd set noscrub、ceph osd unset noscrub集群是否进行常规定时scrub操作 3、ceph pg scrub 1.22对PG进行scrub，不受到2中设置影响 二、keyring生成 ceph-authtool --create-keyring /data/mon.0/ceph.mon.keyring --gen-key -n mon. --cap mon 'allow *' ceph auth get-or-create osd.0 mon 'allow rwx' osd 'allow *' -o /data/osd.0/keyring ceph auth get-or-create osd.3 mon 'allow rwx' osd 'allow *' -o /data/osd.3/keyring 三、对象上传，查看 1、上传rados put {object-name} {file-path} --pool=data示例 rados put rbd.py rbd.py --pool=data 2、查看对象的位置 ceph osd map {pool-name

使用mac进行ios几种命令行打包方式

由 爱⌒轻易说出口 提交于 2020-03-13 11:06:13
随着ios平台的发展以及发布要求的多样性，测试的需求，自动打包可一定程度上提高效率。 自动打包的方式有如下几种: 一、使用xcodebuild进行打包 参考apple文档： https://developer.apple.com/library/prerelease/mac/documentation/Darwin/Reference/ManPages/man1/xcodebuild.1.html xcodebuild -project "${TARGET}.xcodeproj" -target ${TARGET} CODE_SIGN_IDENTITY="${IDENTITY}" clean //将project clean下 xcodebuild -workspace MyWorkspace.xcworkspace -scheme MyScheme archive //进行archive，生成xcarchive文件 xcodebuild -exportArchive -exportFormat IPA -archivePath MyMobileApp.xcarchive -exportPath MyMobileApp.ipa -exportProvisioningProfile 'MyMobileApp Distribution Profile' 上述红色背景的命令行

How to make a system call remotely?

由 ╄→尐↘猪︶ㄣ 提交于 2020-03-10 05:22:01
问题 I have an app that has to mount a disk on a server. The disk and the server all connected, it just has to use the linux 'mount' command. I wrote a php that is simply: <? exec("/var/www/MountTheDisk.sh"); ?> And I added bash script: MountTheDisk.sh #!/bin/bash diskutil mount /dev/xvdb1 /mnt/theDisk/ echo trying to mount Now, if I run that php, I get no result. Nothing is echo'd and no disk is mounted. How can I run this command remotely? Maybe php is not the best method? 回答1: This solution
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