argz_count - Linux
Overview
argz_count is a utility that calculates the number of argz entries in an argz list. Argz lists are zero-terminated arrays of strings, commonly used in the Linux kernel to store an array of command-line arguments.
Syntax
argz_count [--help] <argz>
Options/Flags
| Option | Description | Default |
|—|—|—|
| --help
| Display help and exit | |
Examples
Counting the number of arguments in an argz list
$ echo "arg1 arg2 arg3 arg4" | argz_count
4
Using a file containing an argz list
$ argz_count /proc/cmdline
4
Common Issues
Malformed argz list
If the provided argz list is not properly formatted or contains invalid characters, argz_count may produce unexpected results or errors. Ensure that the argz list adheres to the format specified in the kernel documentation.
Integration
argz_count can be combined with other tools to process argz lists. For example, it can be used with argz_next to iterate over the entries in a list.
Example: Iterating through an argz list
while argz_next argptr; do
echo "Argument: $argptr"
done
Related Commands
- argz_next
- argz_append
- argz_insert
- argz_extract