Questions tagged [hook]
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47 questions
0 votes
1 answer
146 views
Why does no packet traverse the nat chain in the output or postrouting hook with this ruleset?
I have a machine with the network interface enp0s3 which is assigned the IPv4 address 192.168.20.254. Furthermore, on another machine there is a DNS server listening on the IPv4 address 192.168.20.10. ...
- 3,971
0 votes
1 answer
112 views
Libvirt allow hook to fork
If I have following Libvirt hook in /etc/libvirt/hooks/qemu.d/hook.sh #!/usr/bin/env bash if [[ $1 == "SEARCH_FOR_ME" ]]; then while true; do sleep 1 done fi bash /etc/...
user536950
0 votes
1 answer
104 views
Is there a way to disallow a certain combination of commands and options?
Say, I create a new repo, and try to commit. Git shows me *** Please tell me who you are. Run git config --global user.email "[email protected]" git config --global user.name "Your ...
- 103
2 votes
0 answers
357 views
Difference in behavior when hooking a library function via LD_PRELOAD on Ubuntu and CentOS [closed]
There is a hook function socketHook.c that intercepts socket() calls: #include <stdio.h> int socket(int domain, int type, int protocol) { printf("socket() has been intercepted!\n");...
- 371
0 votes
0 answers
44 views
Using a script output as a file (not to a file)
I have two programs using the same configuration (chatty + pidgin) in ~/.purple but I wish to separate them into different configuration folders. My goal is to have chatty use only chatty's ...
- 101
1 vote
1 answer
339 views
Arch Boot Hook: Allocation zramctl fails to allocate
OS Version: 5.9.14-arch1-1 Kernel I am trying to figure out how I can load the whole / directory into the RAM when starting up. I found a little helper here: https://github.com/arcmags/ramroot So, ...
- 11
0 votes
1 answer
536 views
Execute function in bash on every keystroke in interactive shell
I would like to run a function every time a user presses a key in an interactive bash shell. I am wondering if bash has anything built in like the self-insert function in zsh? Alternatively, I am ...
- 189
0 votes
0 answers
136 views
Does linux support the functionality provided by Windows HKEY_CLASSES_ROOT URL protocol trigger?
This windows registry magic: [HKEY_CLASSES_ROOT\shotgun] @="URL:example Protocol" # <---- URL for this example is example.com "URL Protocol"="" [HKEY_CLASSES_ROOT\...
- 325
0 votes
2 answers
358 views
rclone mount webdav whenever a certain application is started
I'd like to automatically mount a nextcloud directory (webdav) with my keepass-database in it using rclone whenever I start KeepassXC and unmount it after closing Keepass. Is there any way to do this (...
1 vote
0 answers
270 views
Identify empty VALUE in XML files and return exit command? [closed]
For instance, I have an XML file with the below content and the "NAME" Author and Assignee(s) have empty "VALUE". The main aim is to implement a check that can be applied to find ...
- 11
0 votes
1 answer
397 views
Zsh Hook Function Definitions as arguments
I would like to know if it's possible to define hook functions as arguments or env var when launching zsh instead of defining it in .zshrc or prompt. For example ; zsh -F preexec() { date } -F chpwd() ...
- 3
4 votes
0 answers
261 views
How to run script when switching to specific (already logged in) user
There's plenty of info out there on how to run a script at login (add it to .xprofile etc.), but I'm looking for a solution that will run a script/command not just at login but also every time a ...
- 41
0 votes
0 answers
1k views
How to add crontab task by reboot / poweroff / poweron pc?
I have next record in crontab -e, running with user root. @reboot /usr/bin/curl --silent --insecure -v -X GET https://<myserver_with_hook>?key=9d722304320de0b074d8da74bf680874&mes='nik-pc ...
- 101
0 votes
1 answer
699 views
Tmux hook after-source-file running but not displaying message
I want to write a hook in tmux to show a message that reports the config has been reloaded. Here is my code: #binding a button to reload this config file bind r source-file ~/.tmux.conf #set hook to ...
- 133
-1 votes
1 answer
3k views
Capture output of a command, process it and ONLY then output to terminal
I would like to capture the stdout (as sent to a terminal), and perform some processing after it is output on the terminal (for the user). I want to know how to grab the output, process and make ...
- 143