Results for “file”
Small, practical examples. Search by task or narrow things down below.
Run with a read-only container filesystem
Docker / Compose: Run with a read-only container filesystem using a locally available Ubuntu image.
Docker / Compose✓ Tested
Run with a read-only root filesystem
Add a temporary writable location while protecting the image filesystem.
read-only✓ Tested
Search for text in a file
Find matching lines with their line numbers, ignoring letter case and treating the pattern as literal text.
grep✓ Tested
See changed files
Show a concise working-tree status.
status✓ Tested
Separate a filename extension
Separate a filename extension using a complete Go program with explicit sample inputs.
Go✓ Tested
Set a file to a specific byte length
Linux Commands: Use truncate to shorten a known scratch file without replacing its inode.
Linux Commands✓ Tested
Set a service’s open-file limit
Docker / Compose: The ulimits mapping defines soft and hard resource limits.
Docker / Compose✓ Tested
Set copied files’ numeric ownership
Docker / Compose: COPY --chown sets ownership while adding the file.
Docker / Compose✓ Tested
Set owner-only file permissions
Linux Commands: Use chmod 600 to allow only the owner to read and write a file.
Linux Commands✓ Tested
Set the open-file limit for a process
Docker / Compose: The nofile ulimit sets soft and hard file descriptor limits.
Docker / Compose✓ Tested
Show the first lines of a file
Read only the first three lines of a text file, useful for checking a header or previewing a large log.
head✓ Tested
Split a file into fixed line-count pieces
Linux Commands: Use numeric suffixes for predictable filenames when splitting a large text file.
Linux Commands✓ Tested