zoukankan      html  css  js  c++  java
  • Linux上运行python出现错误“/usr/bin/env: python3: No such file or directory"

    If you see the error “: No such file or directory” (with nothing before the colon), it means that your shebang line has a carriage return at the end, presumably because it was edited under Windows (which uses CR,LF as a line separator). The CR character causes the cursor to move back to the beginning of the line after the shell prints the beginning of the message and so you only get to see the part after CR which ends the interpreter string that's part of the error message.

    Remove the CR: the shebang line needs to have a Unix line ending (linefeed only). Python itself allows CRLF line endings, so the CR characters on other lines don't hurt. Shell scripts on the other hand must be free of CR characters.

    To remove the Windows line endings, you can use dos2unix:

    sudo dos2unix /usr/local/bin/casperjs (你的文件)

    or sed:

    sudo sed -i -e 's/
    $//' /usr/local/bin/casperjs (你的文件)

    If you must edit scripts under Windows, use an editor that copes with Unix line endings (i.e. something less brain-dead than Notepad) and make sure that it's configured to write Unix line endings (i.e. LF only) when editing a Unix file.

  • 相关阅读:
    高精度乘法
    阶乘
    高精度减法
    高精度加法
    曹冲养猪
    采药2
    nginx.conf详解
    系统盘脚本扩容
    IDEA中编写脚本并运行shell脚本
    常用的pdf工具
  • 原文地址:https://www.cnblogs.com/andy-0212/p/9999750.html
Copyright © 2011-2022 走看看