.gitignore file writing instructions

.gitignore file writing

.gitignoreThe file is used to specify which files or directories should be ignored by Git and not included in version control. In .gitignore, you can use the following syntax:

1 Empty line: Empty lines are ignored.

2 Comments: #Lines starting with are considered comments and will be ignored by Git.

3 file and directory pattern matching:

• Use slashes /for directories.

• Use an asterisk *for wildcards, matching zero or more characters.

• Use double asterisks **for recursive wildcards, matching zero or more directories.

• Use a question ?mark to match any character.

• Use square brackets []to indicate a character set, and match any character in the square brackets.

• Use an exclamation point !to indicate negation, that is, do not ignore the specified file or directory.

 4 examples:

• Ignore specified files: .gitignoreEnter a filename or relative path in .

• myfile.txt
  directory/file.txt
  path/to/myfile.txt

• Ignore files with specific extensions:

• *.log
  *.csv

• Ignore specific directories:

• mydirectory/
  path/to/mydirectory/

• Ignore files with the specified pattern:

• secret*
  /build/

• Exclude specific files or directories:

• !important.txt
  !path/to/important/file.txt

• Use double asterisks for recursive matching:

• logs/**/*.log

• Exclude all files:

• /*
  !/.gitignore

• Ignore all files with extension .txt:

• *.txt

• Ignore files .bakwith that extension, but not .important.bakthose ending with:

• *.bak
  !*.important.bak

  Note: `.gitignore` files can only ignore files that are not yet tracked by Git. If a file has been included in version control, it needs to be removed from Git to make `.gitignore` take effect. You can use the `git rm --cached <filename>`command to remove the file.