curs_scr_dump - Linux
Overview
curs_scr_dump is a powerful utility for dumping the console screen buffer of a Linux system. It provides an efficient way to capture and analyze the current state of the screen, making it a valuable tool for debugging, troubleshooting, and system monitoring.
Syntax
curs_scr_dump [options] [output_file]
Options/Flags
- -h, –help: Display brief help information.
- -v, –verbose: Enable verbose output, providing additional details.
- -a, –all: Dump all screen buffers (not just the active one).
- -o, –output: Specify an output file to write the dump to. Defaults to stdout.
- -b, –binary: Output the dump in binary format.
- -t, –timestamp: Append a timestamp to each dump line.
- -c, –color: Preserve color attributes in the dump by using ANSI escape codes.
- -n, –no-attr: Dump only the character data without any text attributes.
Examples
Dump the active console screen buffer to stdout:
curs_scr_dump
Dump all console screen buffers to a file in binary format:
curs_scr_dump -a -o dump.bin -b
Dump the active console screen buffer with a timestamp and color attributes:
curs_scr_dump -t -c
Common Issues
- Permission denied: Ensure that you have sufficient permissions to read the console screen buffer.
Integration
curs_scr_dump can be integrated with other Linux commands for advanced tasks, such as:
- grep: Filter the dump output based on specific keywords or patterns.
- sed: Modify the dump output to extract or transform specific data.
- awk: Analyze the dump output and perform statistical calculations or data manipulation.
Related Commands
dmesg
: Dump kernel ring buffer messages.journalctl
: View and manage system logs.cat /proc/console
: Read the console screen buffer directly from procfs.