Recent questions tagged bash

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In Bash, I want to get the Nth word of a string hold by a variable. For instance: STRING="one two three ... Bash command/script could do this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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911 views

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bash - Loop background job

I try to run a background job in a for loop in bash: for i in $(seq 3); do echo $i ; sleep 2 & ; ... token `;' In zsh the command line works. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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644 views

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bash - Determining whether shell script was executed "sourcing" it

Is it possible for a shell script to test whether it was executed through source? That is, for example ... these different shell environments? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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811 views

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bash - Iterate through parameters skipping the first

Hi i have the following: bash_script parm1 a b c d ..n I want to iterate and print all the values in ... line starting from a, not from parm1 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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769 views

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bash - Docker: Stop and delete docker container if it's running

I am looking to pragmatically stop and delete a docker container if it is running. This is for a build script. ... && docker rm -f rabbitmq fi See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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792 views

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bash - Set or change vertical position of the cursor

As far as I know, it is possible to move the cursor to the left using the backspace sequence in an echo. But ... of the cursor, using an echo? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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933 views

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bash - How to use sudo in build script for gitlab ci?

When I would like to do something that requiers sudo privelegies, the build process stucks and when ps aux ... for a password interactively) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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875 views

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bash - How to redirect an output file descriptor of a subshell to an input file descriptor in the parent shell?

(In BASH) I want a subshell to use a non-STDOUT non-STDERR file descriptor to pass some data back to the ... that writes to STDOUT and &3. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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890 views

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bash - Fuzzy file search in linux console

Does anybody know a way to perform a quick fuzzy search from linux console? Quite often I come accross ... " feature for Linux console? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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692 views

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bash - How do you start Unix screen command with a command?

According to the docs for the Unix "screen" command, you can configure it in .screenrc to start with a bunch ... in a given screen on startup? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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850 views

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bash - List public IP addresses of EC2 instances

I want to list the public IP addresses of my EC2 instances using Bash, separated by a delimiter (space or a ... jq, or something else entirely? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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868 views

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bash - Git Checkout Latest Tag

I'm writing a shell script and I'm looking to checkout the latest version of repo. Specifically I want to break ... a noob with shell scripts). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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814 views

1 answer

bash - Adding Counter in shell script

I have below code in my shell script which will keep on sleeping if it doesn't finds any file. And it ... com [email protected] sleep 1800 fi done See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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928 views

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bash - How do I use a pipe in the exec parameter for a find command?

I'm trying to construct a find command to process a bunch of files in a directory using two different executables. ... } | grep 123 ; -print See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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735 views

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bash - How to find ports opened by process ID in Linux?

Suppose the PID of the process is already known See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

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bash - How to write a shell script that starts tmux session, and then runs a ruby script

I want to write a shell script that does this: First, create a tmux session Second, run a ruby script called ... read, more confusing it gets.) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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680 views

1 answer

bash - How can I automate running commands remotely over SSH to multiple servers in parallel?

I've searched around a bit for similar questions, but other than running one command or perhaps a few command ... (working on that). Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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888 views

1 answer

bash - set -e and short tests

When I was new to shell scripting, I used a lot of short tests instead of if statements, like false && true. ... , eg. without the script dying? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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750 views

1 answer

bash - Automatically Restart PHP Script on Exit

Is there a way I can automatically restart a PHP script whenever it exits, regardless of whether it has been ... maxed memory usage, etc.? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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774 views

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bash - Sorting words (not lines) in VIM

The built-in VIM :sort command sorts lines of text. I want to sort words in a single line, e.g. ... I find myself needing quite often. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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882 views

1 answer

bash - How can I redirect all output to /dev/null?

I want to run a program (google-chrome) in the background, but prevent it from outputting any messages to the ... the output to /dev/null? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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855 views

1 answer

bash - Why is '#!/usr/bin/env python' supposedly more correct than just '#!/usr/bin/python'?

Anyone know this? I've never been able to find an answer. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.1k views

1 answer

bash - How to split path by last slash?

I have a file (say called list.txt) that contains relative paths to files, one path per line, i.e. something ... where the path has no slashes? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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785 views

1 answer

bash - How to detect if docker run succeeded programmatically?

I'm writing a very simple bash script to quickly check that my container still builds and starts correctly ... whether docker run succeeded? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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839 views

1 answer

bash - How do I "read" a variable on a while loop

How can I read from variable with while read line? For example: the_list=$(..code..) while read line ... line 25: $the_list: ambiguous redirect See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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845 views

1 answer

bash - ANSI color in git is not displayed correctly

Recently, I switched to SLES 11. I found a problem for git command. All the ANSI color could not be rendered. ... in 'ls' works very well. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

0 votes

834 views

1 answer

bash - How do I copy cookies from Chrome?

I am using bash to to POST to a website that requires that I be logged in first. So I need to send the request ... goes here?" "site.com/a.php" See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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997 views

1 answer

bash - Exec commands on kubernetes pods with root access

I have one pod running with name 'jenkins-app-2843651954-4zqdp'. I want to install few softwares temporarily on ... am not able to run commands See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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