Linux deb package decompression, modification and other operation methods code examples

For various reasons, sometimes you need to modify the contents of various files in the deb package directly

There are three main issues that need to be addressed:

0. How to unpack the deb package file?

1. Modify the file to be modified?

2. Generate a deb package for the modified content?

The unpacking command is

#Unzip the files in the package to the extract directory

lin@lin-host:~/Desktop/100 restart tools$ ls
LongTestTools.sh loong-test-s2s3_1.0.0-2_all.deb readme.txt
lin@lin-host:~/Desktop/100 times restart tool$ dpkg -X loong-test-s2s3_1.0.0-2_all.deb extract/
./
./usr/
./usr/bin/
./usr/bin/BootReplace.sh
./usr/bin/BootTest.sh
./usr/bin/LongTestTools.sh
./usr/bin/RebootReplace.sh
./usr/bin/RebootTest.sh
./usr/bin/SleepTest.sh
./usr/bin/SuspendTest.sh
lin@lin-host:~/Desktop/100 restart tools$ ls
extract LongTestTools.sh loong-test-s2s3_1.0.0-2_all.deb readme.txt

lin@lin-host:~/Desktop/100 restart tools$ tree extract/
extract/
└── usr
  └── bin
    ├── BootReplace.sh
    ├── BootTest.sh
    ├── LongTestTools.sh
    ├── RebootReplace.sh
    ├── RebootTest.sh
    ├── SleepTest.sh
    └── SuspendTest.sh

# Extract the control information of the package extract/DEBIAN/:

lin@lin-host:~/Desktop/100 times restart tool$ dpkg -e loong-test-s2s3_1.0.0-2_all.deb extract/DEBIAN/ 
lin@lin-host:~/Desktop/100 restart tools$ tree extract/
extract/
├── DEBIAN
│ ├── control
│ └── md5sums
└── usr
  └── bin
    ├── BootReplace.sh
    ├── BootTest.sh
    ├── LongTestTools.sh
    ├── RebootReplace.sh
    ├── RebootTest.sh
    ├── SleepTest.sh
    └── SuspendTest.sh

3 directories, 9 files

#Modify the file

vi extract/usr/bin/BootTest.sh

Repackage the modified content to generate a deb package

lin@lin-host:~/Desktop/100 restart tool$ dpkg-deb -b extract/ 
dpkg-deb: Creating new software package loong-test-s2s3, package file is extract.deb.
lin@lin-host:~/Desktop/100 restart tools$ ls
extract extract.deb LongTestTools.sh readme.txt

The above is the full content of this article. I hope it will be helpful for everyone’s study. I also hope that everyone will support 123WORDPRESS.COM.

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