Questions tagged [shell-scripting]

Question 1

see below details eccdbpvm02:/mnt/HANA/E1P/backup/data/DB_F1P # crontab -l 05 00 * * * /usr/sys_scripts/clear_log >> /usr/sys_scripts/log.txt 2>&1 eccdbpvm02:/mnt/HANA/E1P/backup/data/...

Question 2

sleep is a very popular command and we can start sleep from 1 second: # wait one second please sleep 1 but what the alternative if I need to wait only 0.1 second or between 0.1 to 1 second ? remark: ...

Question 3

I a bash script, I want to obtain the global IPv6 address of my machine for a given network adapter (on my case 'ens18'). To get started, I issued the following command: ip -6 addr This gives me the ...

Question 4

I have a couple of custom scripts to help me with more or less regular tasks; and recently decided to move them from /usr/bin to ~/bin to have a better overview. I also added home/myusername/bin to $...

Question 5

I'm trying to write a script that will read search strings from an input file and then execute a command with $string in the middle of the command line. This is an example of the working command line:...

Question 6

I have a containerised command I'd like to run: docker run my_docker_image. Rather than install the command's dependencies into the main computer, I'm packaging them all into an image, that then users ...

Question 7

I have an HTTP server (source code not accessible and cannot be substituted at this time) running on my Linux machine, which can be configured to execute any commands on requested. However, the HTTP ...

Question 8

Usually, I run aptitude -y install locales then dpkg-reconfigure locales to set up locale. Now I want to put it into a shell script, how can I reliably do the following, automatically / non-...

Question 9

I have a domain name in a bash variable ($TARGET), and I want to get the IPv4 (A record) address of it in my bash script (I also want to get the IPv6 AAAA record (if exists)), in a robust manner. i.e. ...

Question 10

When I run command bellow in bash shell : if [[ $(readonly | cut -d= -f1 | grep -qo HISTFILE && echo $?) == 0 ]]; then sudo grep -iwo "readonly HISTFILE" /etc/profile /etc/profile.d/*...

Question 11

I have a shell script that runs on a FreeBSD machine. The script has some commands that needs superuser privileges. I’m executing the script remotely and it’s skipping the sudo’d commands. I tried the ...

Question 12

I'm trying to create a shell script that, among other things, starts up ssh-agent and adds a private key to the agent. Example: #!/bin/bash # ... ssh-agent $SHELL ssh-add /path/to/key # ... The ...

Question 13

I am new here and I facing issues with my powershell script whith long paths. This script aims to get relative path and hash from files/folders and its subfolders. It works with some with others I get ...

Question 14

I have a html main.txt file, I need help to split it in two parts. headpart.txt and bodypart.txt. Below is my html main.txt text file - Original <p class=\"auto-cursor-target\"><br /...

Question 15

I have monit utility on production for monitoring several daemons (our micro-services). I'm trying to figure the best way to unmonitor/monitor my daemons while updating them. So, basically I need ...

Question 16

code : subject="mail subject" body="Hello World" from="[email protected]" to="[email protected]" echo -e "Subject:${subject}\n${body}" | sendmail -f "...

Question 17

In a Bash script I want to check if var1 is located between var2 and var3. But I can't find how to do it. Something like this. var1=15 var2=10 var3=20 if [ "$var1" is located beetween "...

Question 18

The first 3 variables will always have no spaces. The fourth "slacksitename" has spaces ip=“x.x.x.x" record_name=“demo.xyz" slackuri:”WEBHOOK" slacksitename:”123 Main St" ...

Question 19

I'm trying to run a Docker container based on: PHP 8.1 Apache 2.4 MariaDB (latest official docker image) Dockerfile: FROM php:8.1-apache WORKDIR /var/www/html/ RUN pecl install xdebug \ &&...

Question 20

Objective: I want to trigger a webhook on a private linux-machine (its a local system not connected to internet), which can delete the spool data generated by CUPS server in /var/tmp folder. To ...

Question 21

I wonder anyone can help me with making a shell script which automate aws cli process for: 1.Creating Security group 2.Set roles to this Security group port 22 and port 80 3.Create a ec2 instance with ...

Question 22

I'm trying to copy data from psql via a bash script now I'm stuck with a loop my bash script is as following: #!/bin/bash DATEBEGIN=2016-03-01 DATEEND=2016-03-31 DATEMONTH=2016-03 echo "Copy ...

Question 23

In an existing shell script, I'm seeing some variables referenced that either include or end with a minus sign. For example: PID=${PID-/run/unicorn.pid} and: run_by_init() { ([ "${previous-}" ] ...

Question 24

I have a VM that has the fixed snapshot, and I have not the right to install anything How I can achieve the goal? Passing password to ssh connection Windows 10, using git bash without needing to ...

Question 25

As part of automation in gitlab ci. I am running a terraform template and creating a linux machine. After that, I need to run few commands on the remote machine. I am running those using the ssh ...

Question 26

I have a file that looks like the following: /path/to/a/very/long/path 0 0 0 0 0 0 I need to move the line starting with a number (this can be any value not necessarily 0) to the end of the ...

Question 27

I'm trying to build a script that I need to be quite able to manage directory with spaces or/and backslashes in their name or not. Inside a bash script or directly on bash shell using variables for ...

Question 28

I've always struggled with various paths for nginx files and where they should be positioned. As we know, we can change where we can park both the www directories for our web app, as well as the ...

Question 29

I have 2 HA Proxy servers with Keepalived configured with them, and have 2 backend servers to which traffic is routed by HA Proxy, am writing a shell script that will sync a directory between backend ...

Question 30

Good morning, I have a custom software that updates with a custom script.sh. Part of the file goes something like this: if [[ $software == A ]] then echo "downloading package..." ...

Question 31

I am in need to check free space on servers but I am getting more than enough details. DeviceID : C: DriveType : 3 ProviderName : FreeSpace : 76691152896 Size : 160482455552 ...

Question 32

I'm currently using rsync on a script that deploys a PHP application from a staging to a production server. Here is how: rsync -rzai --progress --stats --ignore-times --checksum /tmp/app_export/ root@...

Question 33

How to delete docker images from docker hub using a shell script. I want to delete all images from docker hub older than past 50 days of a private docker hub account. Any ideas? Which tools to use ...

Question 34

On ESXi Hypervisor, If I run a command on the terminal via SSH, the commands are logged in the shell.log file, i.e if i run this command [root@esxi04:~] ls -la then I can see this command in shell.log ...

Question 35

In the case of a simple web-server with a MySQL database, the script has to dump the database, copy the web-server files and tar everything together. Then a NAS server Rsync the tar file via a "...

Question 36

From a.pdf, I would like pages 2 and 5 b.pdf, pages 3 and 4 c.pdf, pages 7, 8, and 9 copied into a new PDF file. All input pdf files are ten pages long. I'm using bash, and plan to make many ...

Question 37

I have a bash script who automate a Nextcloud server installation. To run MySQL commands I use the mysql -e command user@hostname:~$ mysql -e "CREATE DATABASE ‘NextcloudDataBaseName’" I ...

Question 38

I've got a script which uses openssl's s_client command to pull certificates for a big set of hosts. Some of these hosts will inevitably be unreachable because of a firewall. Is it possible to set ...

Question 39

I need to measure the time that Firefox takes to build itself from the source code. Here's what I do normaly: nohup ./mach build > my_log.log & I then prepended time to it: time nohup ./mach ...

Question 40

I have written one script on lets say server1 and from that script I want to execute script Start_UI_AdminApp.sh on server2 through ssh. I also need to pass the arguments while executing this ssh ...

Question 41

I know that it does (often) include the grep process and I know adding | grep -v grep or grepping on [f]oo instead will prevent it, but my question is more about order of operations I guess. For ...

Question 42

Im tring to create a bash script that checks the status of the website, Im using this command: This one to create the logstream aws logs create-log-stream --log-group-name "WebsiteStatusMessage" --...

Question 43

I need to write a shell script which checks the contents of resolv.conf Eg domain example.com search abc.com abc.org abc.net nameserver 1.1.2.2 nameserver 3.3.4.4 abc.com/abc.org/abc.net can appear ...

Question 44

Running the following commands in a shell runs without issues: ssh user@machine systemctl status my-service.service ssh user@machine sudo systemctl stop my-service.service scp -r ./my-service/* user@...

Question 45

Hi I am new to shell scripting ,I am trying to see how many times an accounts were logged in the log file. If an account was logged in more than 20 time I need the name of those accounts to be printed....

Question 46

we have one react application and start it using pm2 with pm2 start manually. We have written one script to run it, it is working as expected when we run script manually on server. But when calling ...

Question 47

I am trying to run if else statement inside shell module in ansible playbook but looks like my else statement is not executing in any case. - name: verify application/database processes are not ...

Question 48

I am trying to make a shell script to auto install a web app and the script needs to set client_max_body_size to a bigger size, at some point. Of course, it's possible to set this directive using nano ...

Question 49

I'm facing a issue while executing shell script with ansible playbook. Issue: I'm losing a connection with remote server because shell script is rebooting the server. My Ansible playbook - name: ...

Question 50

I want to start screen and put a couple of programs running inside on startup. I've seen many similar posts but none answered my question. so I put in rc.local following 2 lines: screen -dmS scr ...