Questions tagged [shell-scripting]
Programming in an Interpreted language executed by a running Shell
619
questions
0
votes
1
answer
47
views
What is the correct way to check monit status/summary success/failure
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 ...
-1
votes
1
answer
31
views
Extract Pages from Various PDF Files into New PDF File [closed]
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 ...
0
votes
2
answers
26
views
trying to see if how many times service Accounts was logged in [closed]
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....
- 1
0
votes
1
answer
107
views
Unable to List Contents or Create Files in /var/tmp Folder from PHP Executed Bash Script
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 ...
0
votes
1
answer
60
views
time nohup ./script --> the time hasn't been logged [closed]
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 ...
- 1
-1
votes
1
answer
45
views
Copy/Move Entire Line To End Of The Line Above
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 ...
- 33
1
vote
1
answer
68
views
Hardening the security of a backup shell script of a web-server with mysql database
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 "...
- 11
0
votes
0
answers
38
views
How to avoid duplicate entries in DNS Bind cache db file?
While running command "rndc dumpdb -cache" it has huge amount of data some duplicate entries like one domain has multiple entries with same target but different TTL, how to reduce like ...
- 1
0
votes
1
answer
36
views
Change Ubuntu server password every 7 days and do autologin
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 $(openssl ...
- 1
0
votes
2
answers
89
views
Best Path for nginx Files [closed]
I've always struggled with various paths for nginx files and where they should be positioned. As we know, we can change where we can park both the www directories for our web app, as well as the ...
- 125
2
votes
0
answers
111
views
How to enable logging of commands run through shell script in ESXi Hypervisor?
On ESXi Hypervisor, If I run a command on the terminal via SSH, the commands are logged in the shell.log file, i.e if i run this command
[root@esxi04:~] ls -la
then I can see this command in shell.log ...
- 21
0
votes
1
answer
352
views
Bash loop through dates
I'm trying to copy data from psql via a bash script now I'm stuck with a loop my bash script is as following:
#!/bin/bash
DATEBEGIN=2016-03-01
DATEEND=2016-03-31
DATEMONTH=2016-03
echo "Copy ...
- 27
0
votes
1
answer
2k
views
Setup Apache Docker container to keep running after executing php shell CMD
I'm trying to run a Docker container based on:
PHP 8.1
Apache 2.4
MariaDB (latest official docker image)
Dockerfile:
FROM php:8.1-apache
WORKDIR /var/www/html/
RUN pecl install xdebug \
&&...
- 187
0
votes
0
answers
54
views
GAWK not running in crontab
I have the below script running successfully manually. But when it is executed in crontab (below), I dont see anything happening.
Script
#!/usr/bin/gawk -f
#!/bin/bash
PATH=/usr/local/bin:/usr/bin
#...
- 764
0
votes
0
answers
106
views
Initialization of Samba Active Directory in Podman fails
I have created a Samba Active Directory PDC that runs inside a Podman container.
I was trying to working on how to restore the server from an offline backup, when I encountered something unexpected on ...
0
votes
1
answer
91
views
Variable in AWK
How can I add a variable within awk command? below is my command:
cat /home/ubuntu/test/copy.txt | awk 'NR==21{print ".host = "$line";"}1'
$line is basically an IP address which ...
- 764
1
vote
1
answer
413
views
bash change directory with spaces and backslash
I'm trying to build a script that I need to be quite able to manage directory with spaces or/and backslashes in their name or not.
Inside a bash script or directly on bash shell using variables for ...
- 121
1
vote
0
answers
64
views
Programmatically (SH Script) check which server is traffic routed too by HA Proxy
I have 2 HA Proxy servers with Keepalived configured with them, and have 2 backend servers to which traffic is routed by HA Proxy, am writing a shell script that will sync a directory between backend ...
- 111
1
vote
1
answer
34
views
Scripted Password Change Does Not Survive Reboot Unless One Login Occurs - Debian 11
I am trying to automatically set the root password to random characters via bash script. The script is part of a Vagrant shell provisioner. If the script runs the password change only, I am able to ...
- 416
1
vote
1
answer
275
views
Powershell Script to check free disk space on servers
I am in need to check free space on servers but I am getting more than enough details.
DeviceID : C:
DriveType : 3
ProviderName :
FreeSpace : 76691152896
Size : 160482455552
...
- 21
0
votes
0
answers
48
views
Need help to Split the below HTML text file in two parts using linux scripting
I have a html main.txt file, I need help to split it in two parts.
headpart.txt and bodypart.txt.
Below is my html main.txt text file - Original
<p class=\"auto-cursor-target\"><br /...
- 25
6
votes
4
answers
2k
views
Robust way to resolve a DNS address in a script (IPv4 (A) and IPv6 (AAAA))?
I have a domain name in a bash variable ($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. ...
- 31.6k
1
vote
1
answer
2k
views
Running Shell Script without a Password Prompt
I have a shell script that runs on a freebsd OS.
the script has some commands that needs the sudo privileges
Im excuting the script remotley and it's skipping the sudo commands
i tried the following :
...
1
vote
1
answer
3k
views
How to automate aws cli commands with shell script
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 ...
- 15
0
votes
1
answer
22
views
Remove bunch of disconnected LUNs by shell script (regex issue)
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/${H:B:T:...
- 1
0
votes
0
answers
159
views
Script for automating rsync between two machines (ssh, rsync, mysqldump involved)
I'm trying to create a bash script to automate a process that backups my WordPress blog (on a VPS) on my NAS. I always do it manually, but I'd like to just launch a command and let the thing do its ...
- 1,332
0
votes
0
answers
251
views
Can a bash script detect if it's **not** being run inside a `systemd` service?
I have a bash script. This script can be started as part of a systemd service (or transient systemd task with systemd-run). One can also run it stand alone.
How can I see if “the current script” is ...
- 31.6k
1
vote
1
answer
236
views
Powershell script credentials prompt appears before read-host executes
I'm calling a script inside another script:
...
...
powershell C:/temp/script2.ps1"
...
...
That joins a VM to a domain after downloading some things. However, when the script runs, the prompt ...
- 189
-1
votes
1
answer
416
views
How to execute remote commands on linux and update return value?
As part of automation in gitlab ci.
I am running a terraform template and creating a linux machine.
After that, I need to run few commands on the remote machine. I am running those using the ssh ...
- 234
1
vote
1
answer
2k
views
bash script – MySQL commands and variables
I have a bash script who automate a Nextcloud server installation.
To run MySQL commands I use the mysql -e command
user@hostname:~$ mysql -e "CREATE DATABASE ‘NextcloudDataBaseName’"
I ...
- 69
0
votes
0
answers
72
views
Script to reassign floating IP address to my other machine running Ubuntu
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 ...
- 113
0
votes
0
answers
1k
views
How to pass multiple arguments through ssh and use those arguments in the ssh script?
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 ...
- 61
0
votes
1
answer
501
views
Shell script to check resolv.conf [closed]
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 ...
- 21
0
votes
0
answers
597
views
When calling script from jenkins it is not working as expected
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 ...
- 61
0
votes
1
answer
86
views
Shell script not reading the file as expected
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
$...
- 764
0
votes
1
answer
454
views
Variables on set-hostname and mv command in shell script
I have the below script in Shell:
read n
for ((i=1;i<=$n;i++))
do
echo "Connecting to $publicip"
ssh -i ./key.txt root@$publicip 'hostnamectl set-hostname autotest$i.domain.com && ...
- 764
0
votes
1
answer
590
views
Run commands that run in a shell as a script
Running the following commands in a shell runs without issues:
ssh user@machine systemctl status my-service.service
ssh user@machine sudo systemctl stop my-service.service
scp -r ./my-service/* user@...
- 145
0
votes
1
answer
75
views
Shell Script to Move a File Into Another User's Directory?
I'm running a Ubuntu 16.04 server. On my server, I have a file in directory /home/userA/dirA:
userA@myUbuntu:~$
userA@myUbuntu:~$ pwd
/home/userA
userA@myUbuntu:~$
userA@myUbuntu:~$ ls -l
total 8
...
- 131
0
votes
1
answer
440
views
Using awk with column number in a bash script
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/...
- 43
0
votes
1
answer
110
views
How monitor open files and kill its PID by shell script?
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 ...
-3
votes
1
answer
56
views
Nested directories file restore
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 ...
- 39
0
votes
1
answer
292
views
Automating GDB memory dumps [closed]
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) ...
0
votes
0
answers
194
views
Running ps command with 'Irix mode' off
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 ...
1
vote
0
answers
599
views
How to export the details of a digital certificate (.cer file) to a csv file using powershell?
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 ...
- 11
-1
votes
1
answer
3k
views
Handle exception with long paths in Powershell
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 ...
- 1
0
votes
1
answer
753
views
Ansible blockinfile module - insert insert lines of code
I try to insert lines of code (shell script) with Ansible blockinfile module.
name: Customized prompt
blockinfile:
path: /etc/profile.d/customized_prompt.sh
create: yes
block: |
#!/bin/bash
# ...
- 69
0
votes
1
answer
1k
views
Ansible playbook rebooting the server , wait till reboot complete
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: ...
- 1
0
votes
1
answer
874
views
whats the diffrence between "command.sh > /dev/null 2>&1" vs "command.sh 2>&1 >/dev/null"
I have many shell and python scripts on my crontab that ending either with:
command.sh > /dev/null 2>&1
or
command.sh 2>&1 >/dev/null
I know that:
> is for redirect
/dev/...
- 753
0
votes
1
answer
336
views
finding docker images with tag and name
when I do docker images I have below docker images as list where there are images with multiple tag and also image with latest tag value.
REPOSITORY TAG ...
- 172
0
votes
1
answer
1k
views
how to programatically set nginx configuration directives to nginx.conf?
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 ...
