Process substitution not allowed by Python’s subprocess with shell=True?
Here is a toy example of process substitution that works fine in Bash:
shell
Why is an MD5 hash created by Python different from one created using echo and md5sum in the shell?
A Python MD5 hash is different than the one created by the md5sum command on the shell. Why?
Implement an interactive shell over ssh in Python using Paramiko?
I want to write a program (in Python 3.x on Windows 7) that executes multiple commands on a remote shell via ssh. After looking at paramikos’ exec_command() function, I realized it’s not suitable for my use case (because the channel gets closed after the command is executed), as the commands depend on environment variables (set by prior commands) and can’t be concatenated into one exec_command() call as they are to be executed at different times in the program.
python getoutput() equivalent in subprocess
I want to get the output from some shell commands like ls or df in a python script. I see that commands.getoutput(‘ls’) is deprecated but subprocess.call(‘ls’) will only get me the return code. I’ll hope there is some simple solution. Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the … Read more
‘yes’ reporting error with subprocess communicate()
I am using the following function to run a command in Python:
Checking for interactive shell in a Python script
I need to determine whether the shell which invoked my Python script was in interactive mode or not. If it was in interactive mode, the program should pipe output to less(1) for easy reading. If not, it should simply print its output to stdout, to allow it to be piped away to a printer, file, or a different pager.
How to recognize whether a script is running on a tty?
I would like my script to act differently in an interactive shell session and when running with redirected stdout (for example when piped to some other command).
Clear screen in shell
Just a quick question:
How do you clear the screen in shell?
I’ve seen ways like:
How to store the result of an executed shell command in a variable in python?
I need to store the result of a shell command that I executed in a variable, but I couldn’t get it working. I tried like: import os call = os.system("cat syscall_list.txt | grep f89e7000 | awk '{print $2}'") print call But it prints the result in terminal and prints the value of call as zero, … Read more
Why I can’t escape spaces on a bash script?
I’m trying to escape the space char for a path in Bash, but neither using a backslash or quotes works. .sh script: ROOT=”/home/hogar/Documents/files/” FILE=${ROOT}”bdd.encrypted” DESTINATION=”/home/hogar/Ubuntu One/folder” mv ${FILE} ${DESTINATION} After execute the script (./file) this is the result: mv: target 'One/folder' is not a directory Why does the mv command split the string, and how … Read more