bash

问题 I am new to Git and Github; and I came across a problem. There is a similiar question here (git bash failed to load advapi32.dll), but they are experiencing a different problem and there are no answers either. I have searched online and was unable to fix this. Here is the issue: I am using Git Bash to push/pull commits to Github. When I try to push my work, I get this error saying "failed to load advapi32.dll ". I do have this file in my registry. The full Git message is bellow. It is worth

问题 I need to write a bash script to do something as another user and then return to the initial user... Suppose I run the following as root: #!/bin/bash USER=zaraza su - "${USER}" #do some stuff as zaraza ________ #here I should logout zaraza #continue doing things as root In the console I should write "exit", but in bash is a keyword and it exits the script... Thanks in advance, 回答1: Use su -c . From the man page: su man -c catman Runs the command catman as user man. You will be asked for man's

问题 I have a filter that I want to enable optionally and I wonder how can I do this in bash in a clean way. FILTER="| sort" # also can be empty ls $FILTER | cat This code does not work because it will call ls with | and sort as parameters. How can I do this correctly? Please mind that I am trying to avoid creating if blocks in order to keep the code easy to maintain (my piping chain is considerable more complex than this example) 回答1: What you have in mind doesn't work because the variable

问题 I know that this question is answered many times, but I still can't figure out how to do it. Maybe it's because I don't know the correct keyword to search for. Using echo -ne '\n' | enter doesn't work. My code is: #! /bin/bash #Grub-customizer sudo add-apt-repository ppa:danielrichter2007/grub-customizer echo -ne '\n' | return sudo apt-get update sudo apt-get install grub-customizer 回答1: You're supposed to pipe the \n into the command that's going to be receiving it (otherwise it won't ever

问题 I know that this question is answered many times, but I still can't figure out how to do it. Maybe it's because I don't know the correct keyword to search for. Using echo -ne '\n' | enter doesn't work. My code is: #! /bin/bash #Grub-customizer sudo add-apt-repository ppa:danielrichter2007/grub-customizer echo -ne '\n' | return sudo apt-get update sudo apt-get install grub-customizer 回答1: You're supposed to pipe the \n into the command that's going to be receiving it (otherwise it won't ever

问题 I have cygwin installed on my Windows 7 box and I have been running into a problem where when I type a command it will occasionally be wrapped back onto the same line, deleting the bash prompt. Here is an example: The command in question is command "201" (4 lines from the bottom). I included the others for context. The text of the command I was typing was git commit -m "Forced LF line endings." ( Note: I am posting this with mostly git commands, but the problem occurs with any command. I have

问题 I have cygwin installed on my Windows 7 box and I have been running into a problem where when I type a command it will occasionally be wrapped back onto the same line, deleting the bash prompt. Here is an example: The command in question is command "201" (4 lines from the bottom). I included the others for context. The text of the command I was typing was git commit -m "Forced LF line endings." ( Note: I am posting this with mostly git commands, but the problem occurs with any command. I have

问题 When trying to deploy a Node.js application I'm getting an error npm: command not found in my post_install.sh AfterInstall script. What's super strange is in my BeforeInstall script I run npm install -g pm2 and it works perfectly fine without any errors. Both are being run as the ubuntu user. Why would this command work in one CodeDeploy script and fail in another? 回答1: Looks like I was able to solve this by adding the following to my script files. export NVM_DIR="$HOME/.nvm" [ -s "$NVM_DIR

问题 How do you define a custom prompt to use when activating a Python virtual environment? I have a bash script for activating a virtualenv I use when calling specific Fabric commands. I want the shell prompt to say something like "(fab)" so I can easily distinguish it from other shells I have open. Following this example, I've tried: #!/bin/bash script_dir=`dirname $0` cd $script_dir /bin/bash -c ". .env/bin/activate; PS1='(fab) '; exec /bin/bash -i" but there's no change to the prompt. What am

问题 I'm trying to write a bash completion that will let me complete directory names that other shells are in. For example, suppose I have another shell open in /very/long/path/name , and I'm currently in a directory that contains subdirs foo and bar . When I type cd <Tab> , I want to see: $ cd <Tab> foo/ bar/ /very/long/path/name I have this command to produce the list of potential completions: ps -Cbash -opid= | xargs pwdx | cut -d" " -f2 | sort -u | while read; do echo ${REPLY#$PWD/}; done |