shell Questions

Retrieve substrings from individual components of an array in Bash – CentOS

July 16, 2020
user1173240
2 Answers

For a command such as grubby --info=ALL the output received is something of the sort - index=3 kernel="/boot/vmlinuz-4.18.0-80.el8.x86_64" args="ro crashkernel=auto resume=/dev/mapper/cl-swap rd.lvm.lv=cl/root rd.lvm.lv=cl/swap rhgb quiet" root="/dev/mapper/cl-root" initrd="/boot/initramfs-4.18.0-80.el8.x86_64.img" title="CentOS Linux (4.18.0-80.el8.x86_64) 8 (Core)" id="d7fe995b9d09403896e1e56a2b02a947-4.18.0-80.el8.x86_64" index=4 kernel="/boot/vmlinuz-0-rescue-d7fe995b9d09403896e1e56a2b02a947" args="ro crashkernel=auto resume=/dev/mapper/cl-swap rd.lvm.lv=cl/root rd.lvm.lv=cl/swap…

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Find all files above a size and truncate? – CPanel

June 10, 2020
SupaMonkey
2 Answers

Running cPanel on a server with various customer accounts under the /home directory. Many customers' error_log files are exceeding a desired size (let's say 100MB) and I want to create a cron job to run daily to truncate any files…

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How to add user in centos without manual password prompt

June 2, 2020
Ashley
2 Answers

I am trying to automate setting up a user on centos as part of my script. Here is what i am doing:- /usr/sbin/useradd my-user /usr/bin/passwd my-user You will be be prompted to enter password for the my-user user Now is…

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How to get root password in Bitnami WordPress from kubernetes shell? – Debian

May 14, 2020
hexphp111
2 Answers

I have installed Worpress in Rancher, (docker.io/bitnami/wordpress:5.3.2-debian-10-r43) I have to make wp-config writable but I get stuck, when get shell inside this pod to log as root : kubectl exec -t -i --namespace=annuaire-p-brqcw annuaire-p-brqcw-wordpress-7ff856cd9f-l9gf7 bash I cannot login to root,…

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how to fix the weird error "Operation not permitted" – CentOS

May 8, 2020
overflow
4 Answers

[hadoop@worker-18 tmp]$ ./sysupdate -bash: ./sysupdate: Operation not permitted [hadoop@worker-18 tmp]$ chmod +x ./sysupdate [hadoop@worker-18 tmp]$ ./sysupdate -bash: ./sysupdate: Operation not permitted [hadoop@worker-18 tmp]$ sudo ./sysupdate sudo: unable to execute ./sysupdate: Operation not permitted [hadoop@worker-18 tmp]$ ls -l ./sysupdate -rwxrwxrwx 1…

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How to remove specific string in a file using find & sed – CentOS

April 17, 2020
Passion Fruit
2 Answers

All my index.php were injected with <script type='text/javascript' src=’https://www.example.com/home?v=2.2.0′></script> at the 1st line of it. So I want to just remove that particular line "<script type=’text/javascript’ src=’https://www.example.com/home/public′></script>" via Terminal in Cpanel running CentOS I do some research and I have…

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I want to check only the network interfaces status on the server which is listed in the command output on linux bash – CentOS

April 17, 2020
Rebron Treborn
2 Answers

I want to get the output only the interface which is down based on the configured interfaces in the network-scripts directory. for i in $(ls -1 /etc/sysconfig/network-scripts/ifcfg-e*|sed 's/.*ifcfg-//g'); do grep -i 'down' /sys/class/net/$i/operstate; echo $i;done How can I list only…

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Defining flag parameters in bash – CentOS

March 3, 2020
Michał Turczyn
2 Answers

I wrote bash script, in which I included some logging, to see what is going on in each step of exectuion. Now, I can split those logs in debuggin info and user info (that something has completed, etc.). So I'd…

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BASH Shellscript get username from folder path – Debian

February 29, 2020
kei
3 Answers

Given a folder path that has /home, I would like to scrape the username from the folder path. (A little home work, trying to compare folder username to actual owner of the folder, which can be determined with a quick…

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CronTab Run only ONCE in a year – Debian

February 5, 2020
user2404597
3 Answers

Here is my job 45 5 5 2 WED /usr/bin/python3 /home/pi/Saqib/RaspBerryPiAdhan/www/commands/player.py "/static/media/fajr1.mp3" "Office Ustairs speaker" Jobs looks fine, as I want it to run only once in a year...however i am using a module called "croniter"...and it seems like it…

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