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

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 3

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 4

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 5

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 6

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 7

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 8

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

Question 9

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 10

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 11

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 12

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 13

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 14

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 15

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 16

am working on a scenario where i need to Change Ubuntu server password every 7 days and do autologin. i tried with breaking the problem: command to create user with password: useradd -p $(openssl ...

Question 17

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 18

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 19

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 20

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 21

I have the below script running successfully manually. But when it is executed in crontab (below), I dont see anything happening. Script #!/usr/bin/gawk -f #!/bin/bash PATH=/usr/local/bin:/usr/bin #...

Question 22

How can I add a variable within awk command? below is my command: cat /home/ubuntu/test/copy.txt | awk 'NR==21{print ".host = "$line";"}1' $line is basically an IP address which ...

Question 23

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 24

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 25

I am trying to automatically set the root password to random characters via bash script. The script is part of a Vagrant shell provisioner. If the script runs the password change only, I am able to ...

Question 26

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 27

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 28

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 29

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 30

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 31

Have a problem with my script, don't want to run same procedure 200 times with changing LUN number. Remove the multipath device from ALL paths to the LUN, run echo 1 > /sys/bus/scsi/devices/${H:B:T:...

Question 32

I have a bash script. This script can be started as part of a systemd service (or transient systemd task with systemd-run). One can also run it stand alone. How can I see if “the current script” is ...

Question 33

I'm calling a script inside another script: ... ... powershell C:/temp/script2.ps1" ... ... That joins a VM to a domain after downloading some things. However, when the script runs, the prompt ...

Question 34

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 35

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 36

I have a floating IP(X.X.X.191) assigned to the machine (Y.Y.Y.106) currently running ubuntu. Now I want the same floating IP to be assigned to my other droplet(Z.Z.Z.252). On digital ocean I can do ...

Question 37

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 38

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 39

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 40

Below is the script trying to be executed: read n for ((i=1;i<=$n;i++)) do file=createserver"$i".json echo $file instanceid[$i-1]=$(jq -r '.instance.id' ./$file) echo $instanceid done $...

Question 41

I have the below script in Shell: read n for ((i=1;i<=$n;i++)) do echo "Connecting to $publicip" ssh -i ./key.txt root@$publicip 'hostnamectl set-hostname autotest$i.domain.com && ...

Question 42

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 43

I'm running a Ubuntu 16.04 server. On my server, I have a file in directory /home/userA/dirA: userA@myUbuntu:~$ userA@myUbuntu:~$ pwd /home/userA userA@myUbuntu:~$ userA@myUbuntu:~$ ls -l total 8 ...

Question 44

I'm using a command like this to get some connections from nf_conntrack: awk '($3 == "tcp") && ($6 != "TIME_WAIT") && ($10 == "dport=1234")' /proc/net/...

Question 45

My system gets me an error that saying 'Too many open files'. I investigated this error and turned out that /usr/bin/uwsgi created sockets(?) more than 1020. If it creates more than 1020, I guess, the ...

Question 46

I recently took backup of one of my server's drive on AWS using one of the software and now at the time of restoring it i found out it took too long to restore as its having billions of files to ...

Question 47

I'm trying to dump memory from a process on my Linux machine using GDB, but I'm trying to automate this using a script. So far I've been using the following commands (example): $ gdb --pid [pid] (gdb) ...

Question 48

I know that within the interactive 'top' screen, I can press 'Shift + i' to turn off 'Irix mode' Is there a way to do the same thing with 'ps' command? I am trying the below mini script to print out ...

Question 49

I have a digital certificate that I'm using for a specific task. I need to export the details of the certificate such as the serial number and issuer to a csv file that is already on my computer using ...

Question 50

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 ...