默认情况下，不在bash中执行bash脚本

Question

我在Ubuntu中运行一个python脚本，它依赖于正在安装的包。这些都是我可以调用的，但是脚本不能。在

我想这是因为脚本使用的是shell（sh）而不是bash版本

sh: genomeCoverageBed: command not found

但可以在Bash中手动调用genomecovergebed：

^{pr2}$

我的Stackoverflow问题的这一部分是误导和错误的！公司名称：

I have added this shebang to the start of my python script:

#!/bin/bash

But this has not affected the outcome,

从脚本中去掉这个仍然会导致相同的错误消息 以下是脚本的一部分：

for filename in os.listdir(folder):
if filename.endswith(".sorted.bam"):
    namefile = filename.replace(".sorted.bam", "_ncoverage.txt")
    folder_name = filename.replace(".sorted.bam", "")
    os.system("mkdir " + folder_name)
    os.system("coverageBed -s -d -a bam " + folder + filename + " -b " + gff_file + " > " + folder_name + "/" + namefile)

以下是运行此脚本时发生的情况：

ubuntu@fat:~/jonathan/script$ sudo python2.7 script1.py ./Folder/ ./Folder/ref.fasta genbank.gff
sh: coverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: coverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: coverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: coverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: coverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: coverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: coverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: coverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: coverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found
sh: genomeCoverageBed: command not found

你对我能做些什么有什么建议吗，或者即使我走在正确的轨道上？ 谢谢你的帮助！在

Answer 1

正如@tdelaney在评论中提到的那样，你的shebang正在调用一个subshell。要使用python作为执行文件的程序，您需要使用如下所示的方法：

#! /usr/bin/env python

Answer 2

如果您将！/bin/bash，将在bash中打开。试试放#！/usr/bin/python或#！/usr/bin/env python

Answer 3

你用错了

#!/bin/bash

当一个linux shell被要求运行一个文本文件（例如，./myprogram.py）时，它会查看shebang，以确定应该使用哪个程序来解释文本。在您的例子中，您要求shell运行/bin/bash-另一个shell，它试图将python脚本解释为shell脚本。在

你可以用不同的方式来写

^{pr2}$

这告诉shell运行/usr/bin/env，它将在路径中搜索一个名为pythnon3的东西。现在，为当前环境运行python设置。默认情况下，它是系统python，但是如果您在python虚拟环境中运行，它运行的是python。在

shebang只在linuxy系统上使用，并且只在使脚本可执行并直接运行时使用。如果在windows上运行（在cygwin或其他类似unix的shell之外）或直接运行python（python /path/to/myscript.py），则不使用它。在