Questions tagged [scripting]
A script is a sequence of commands or instructions that are executed by an interpreter program rather than compiled into a standalone executable program.
653
questions with no upvoted or accepted answers
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Check if a remote machine is in a Veritas cluster
How can I verify that a remote machine is part of a Veritas cluster?
I just created the following ssh command to verify if the remote machine is
a VRTS cluster or a Linux availability Red Hat cluster ...
- 1,521
6
votes
1
answer
845
views
Mac equivalent application "shortcat"
There is a mac application called Shortcat and it make me envious.
For those of you averse to clicking links here is a summary:
Keep your hands on the keyboard and boost your productivity! ...
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5
votes
1
answer
456
views
How to create a real copy of file descriptor stdout and stderr without using unbuffer / script / tee just with bash built-ins?
My goal is to duplicate, redirect all output (stdout and stderr) of an
application (apt-get) to a file while retaining the usual behavior of
the application (apt-get), stdout and stderr.
How to ...
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5
votes
0
answers
298
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programmatically alter kde file associations
Problem:
In kde I want to remove a particular file association from every file type
Details:
I wanted to try out clamTk as a companion to clamAv. It didn't suit my needs so I uninstalled the ...
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4
votes
3
answers
592
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Parsing csv file to filter rows basing on a matching set of characters from a column value
Consider the following csv file:
A,3300
B,8440
B,8443
B,8444
C,304
C,404
M,5502
M,5511
The real csv file is really big (around 60,000 rows) but I only included a small version for ...
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4
votes
0
answers
378
views
Launch Openbox actions through script or cli
I was wondering if it is possible to run openbox actions, like the ones that can be found on rc.xml like MoveResizeTo , through a console command so I can launch it from terminal or inside a bash ...
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4
votes
0
answers
862
views
How to rsync files when a USB stick is mounted
Tried a little project to aid in transferring control files from my home computer to my work shop computer. The outcome confuses me. What am I doing wrong?
The home computer is running Fusion 360 ...
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4
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0
answers
188
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How to dynamically control the audio volume based on current decibels
Since the Internet videos have different sound volume levels I am wondering is there a way to dynamically decrease the audio volume if it's above certain decibels to a normal value.
Could someone ...
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4
votes
1
answer
322
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How do I schedule a cron task to run
I'm looking to crontab a script every hour starting Friday at 5pm... ending Monday at 5am.
This script checks if it's completed this week and if it's currently running. If no/no, start task.
Off the ...
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4
votes
1
answer
303
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Remote script cleaning up
I run a remote script using ssh:
local script:
local_command
ssh -p 222 user@server 'sh -s' < ./remote_run.sh
remote script:
some_command &
sleep 10000
trap 'echo exiting' SIGINT SIGTERM ...
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4
votes
1
answer
2k
views
GRUB 2 scripting: convert device name in GRUB notation into a Linux device name
I'm trying to use partition labels (or UUIDs, that does not matter) to select root partition without use of an initrd/initramfs.
With initramfs, this is fairly easy: root=LABEL=... or root=/dev/disk/...
- 5,141
3
votes
0
answers
181
views
Struggling with systemd and user permissions for backup script
I could use some help with figuring out the right way to accomplish what I need using systemd. I feel like I have backed myself in between a rock and a hard place and am not sure where to go. here is ...
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3
votes
0
answers
244
views
How to run a script when a directory is accessed?
I want a device mounted to a mountpoint only when it is needed, when it is accessed (for the first time). How to run a script when a folder is accessed in Linux (or Ubuntu)? Please note that the ...
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3
votes
3
answers
705
views
How to grep data of a new line when capturing a keyword?
I have a file which contains below sample line having a common keyword P00001121 in each line.
[H00,P00001121] CHANNEL__OPEN:TCP_ADDRESS='10.32.130.202' TCP_PORT='80'"
[H00,P00001121] COMMS_QUEUING:...
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3
votes
0
answers
2k
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systemctl doesn't work from crontab
I'm trying to run a script calling systemctl from crontab but the command is not being executed. Other scripts work fine from crontab. The script works when executed in a terminal.
This is the script:...
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3
votes
0
answers
1k
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Automation of ssh change password on 1-st login (no expect)
My account was copied from 1 to a big number of hosts. On every host on 1-st login I get:
WARNING: Your password has expired.
You must change your password now and login again!
Changing password for ...
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3
votes
2
answers
1k
views
Script or Program to discover hosts on network
Explanation:
I need a script or program to discover devices on my network. I was thinking maybe doing the scan with nmap and I need to display just the name of device, what it is, and also the ip ...
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3
votes
1
answer
592
views
Advance autologin via 2 jumphost/passphrase
I need to find a way to autologin on Remote Machine. There are several way in which we can do this but this is little tricky for me.
Auto Login to a remote machine and execute command or script and ...
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3
votes
1
answer
2k
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Upload to youtube using shell script
I've searched the youtube API but still not clear whether this is possible.
I have a shell script that uses FFMPEG to convert a video. After being converted I want to have the video automatically ...
- 1,081
3
votes
0
answers
1k
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Converting script from init to systemd
I am moving from Ubuntu 11 to 16, and would like to convert custom-made scripts to work with Ubuntu 16
I have started and completed First init script but need a bit of help on Second init script. I ...
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3
votes
2
answers
1k
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Bash Scripting: How do i limit the amount of options in a select loop?
When you use the select loop to present the elements of an array as an option, it will display it all at one time. Is there a way to present the options to the user for like 25 options at a time?
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3
votes
1
answer
3k
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How to kill inactive user logins on Solaris?
On a Solaris 10 server if i do a w, I get this:
12:26pm up 85 day(s), 1:13, 6 users, load average: 0.38, 0.36, 0.38
User tty login@ idle JCPU PCPU what
blah pts/1 ...
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3
votes
3
answers
84
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Converting rows to row groups
Can somebody please help me with the below conversion shell script ?
Source File File 1 : for example
EXCHANGE_ID : 192, 410,
EXCHANGE_DTTM : 2015-06-11+02:18:40+0000,...
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3
votes
1
answer
3k
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How do you make a toggle key using Autokey?
I want to use Autokey to toggle the e key on and off in a program called "xyz". So if I press e, the program thinks I'm holding down e. I press e again, it thinks I released it. How do you do this ...
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3
votes
0
answers
185
views
Automatically restarting process in the X server
I would like to know how to have a process that starts with the X server and automatically restarts when it stops running. I am running Ubuntu 14.04 with a KDE 4.13.3 desktop.
I am running the ...
3
votes
0
answers
112
views
End recording once silence is detected
I've been using something like this up to now: End sox recording once silence is detected
But now I'd like for the audio source and recording mechanism to be separate.
I can get the source as an ....
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3
votes
0
answers
66
views
Notifying program that X session is shutting down
Ok. I understand X session is a bit vague here so let me clarify what I mean by the phrase. I mean the situation where a person has been presented with a display manger screen ( eg xdm, kdm, gdm, mdm, ...
- 2,027
3
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0
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1k
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gnome-terminal cmd leaving processes open after closing parent window
The following simple command should demonstrate my issue:
gnome-terminal --tab -t "Tab 1" -e "/bin/bash" --tab -t "Tab 2" -e "/bin/bash"
This should open a new window with two tabs and an active ...
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3
votes
0
answers
484
views
Using tcpdump to log blacklisted IPs
I am using tcpdump to log traffic outbound on a network. I would like to be able to log traffic on a host or IP-only basis but then I would like to be able to log large numbers of potentially ...
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3
votes
0
answers
2k
views
Cron file syntax checker/validator script
Does anyone know a script (bash, perl, php ...) to validate the syntax of crontab files?
I found this http://www.intuitive.com/wicked/showscript.cgi?053-verifycron.sh but just Vixie cron notation is ...
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2
votes
1
answer
191
views
How to stop program of non-interactive SSH call without pseudo-terminal
Let's say I start a program with a non-interactive SSH call (without pseudo-terminal) and exit the session via CTRLC:
$ ssh user@server -- sleep 123
^C
This way, the program, in this case sleep 123 ...
- 2,960
2
votes
1
answer
81
views
How to get static (snapshot of) pw-top?
I need to get a static output from pw-top, of pipewire, for a script I want to make. I really just need a list of pipewire devices.
For example, I want to be able to run pw-top | grep output and then ...
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2
votes
0
answers
53
views
How to figure out why `bash simple_script.sh` works but `bash < simple_script.sh` doesn't?
I have a very simple script, simple_script.sh, consisting the following three lines
bpeek 123450
bpeek 123451
bpeek 123452
If I run
$ bash simple_script.sh
all three bpeek commands in simple_script....
- 14.8k
2
votes
0
answers
391
views
mdadm rotate hot spare
It can be a good idea to have a hot spare in some RAID systems. It can be a bad idea for the hot spare to sit idle for months/years, potentially hiding a defect, until an active drive fails and ...
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2
votes
2
answers
1k
views
How to merge txt file with the same name from all subdirectories
I have folders with a lot of files, Each folder has txt files of the same name, I want to merge all txt files from all subdirectories into a single folder.
Example:
/home/parent/Folder1 ===> ...
2
votes
0
answers
217
views
Blink LED on different times on Linux
I made a python program to blink LED on Ubuntu installed on Raspi3b. It's running and I could blink the LED. Next steps are to blink at different times: when I power on, after ssh is active, and the ...
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2
votes
0
answers
39
views
Receive notification new messages localhost MAC OS?
I need to receive notifications when my backup script is executed successfully.
First I tried to send an e-mail to Thunderbird on localhost, but newer version of Thunderbird does not have Unix mail ...
2
votes
1
answer
576
views
Get the full path of running script from /proc
If a running script was called directly, as in not by calling its interpreter with the script's path as an argument, how can the full path to script file reliably be retrieved regardless of the ...
- 3,828
2
votes
0
answers
23
views
Script configuration issues
My purpose is to allow user A to run a specific script owned by user B but with user B’s profile loaded. This is on a Solaris maachine.
I have users A and B, I set this line: in the sudoers file, so ...
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2
votes
1
answer
626
views
Which Window Managers are Shell Scriptable?
I'd like to start doing more powerful things on my desktop with (simple!) scripting and would like to know which environments/ window managers support this.
Example: For web development, I have to ...
- 1,081
2
votes
0
answers
43
views
How can I know/list the properties of any application macOSX to be able to use osascript/apple-script?
I'm a newbie for osascript. I want to code some automated script/apple-script.
I've searched and tried some tutorials about apple-script but it's a simple application like "Reminders" "Finder". I ...
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2
votes
0
answers
179
views
Fedora: Create multiple workspaces with a script
At the moment I'm using Fedora with Gnome.
I want to create a script which will be able to start the applications on different workspaces.
For me it's clear that I could create a script which just ...
2
votes
1
answer
827
views
Cron job sends empty mails
I have written a shell script which checks the NTP service on all our servers and mails the output to specific email. When I execute it manually, it runs fine and I'm receiving email with valid ...
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2
votes
0
answers
152
views
Filter Bluetooth Devices from ACPI Command Output
I have a battery status script for my laptop which parses the output of acpi -b. Since my laptop only has one battery this has worked fine for years.
However, I recently purchased a bluetooth ...
- 909
2
votes
2
answers
1k
views
Copying/Moving folders where destination folder already exists
I am writing a bash script to copy/move a folder called "folder" to a directory that already contains "folder" and I would like the contents to be merged.
I am attempting to use a solution from this ...
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2
votes
0
answers
447
views
Detect network interfaces with carrier on boot
I have a Debian system with more than one ethernet port.
I'm currently running a script on boot which assigns a static IP to one of the ports (by updating /etc/network/interfaces and restarting ...
- 341
2
votes
0
answers
208
views
How to trace script execution events
My goal:
To receive events from the kernel when a file/script is opened for execution with the absolute path of the file (or maybe the working directory, to resolve the absolute path of the file).
I ...
- 21
2
votes
0
answers
88
views
Using killall with -u and -o options
I wanted to confirm some details with the killall -o option. I tested it on some ssh connections I created under the user rick.
First I printed a list of all of ricks ssh connections along with the ...
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2
votes
0
answers
1k
views
Evaluate the similarity between two video files
I'm looking for a method that reliably gives me a "mathematical distance" of two videos from one another. Similar to how the Levenshtein distance can be used to get the distance from a ...
- 356
2
votes
0
answers
815
views
How to script AT command to modem?
Every time my USB modem (/dev/dlinkModem) gets unplugged it defaults to "radio disabled mode" (AT+CFUN:4).
I can easily enough call AT+CFUN:1 through the minicom application console to enable radio ...
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