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#!/usr/bin/env bpftrace /* * bashreadline Print entered bash commands from all running shells. * For Linux, uses bpftrace and eBPF. * * This works by tracing the readline() function using a uretprobe (uprobes). * * USAGE: bashreadline.bt * * This is a bpftrace version of the bcc tool of the same name. * * Copyright 2018 Netflix, Inc. * Licensed under the Apache License, Version 2.0 (the "License") * * 06-Sep-2018 Brendan Gregg Created this. */ BEGIN { printf("Tracing bash commands... Hit Ctrl-C to end.\n"); printf("%-9s %-6s %s\n", "TIME", "PID", "COMMAND"); } uretprobe:/bin/bash:readline { time("%H:%M:%S "); printf("%-6d %s\n", pid, str(retval)); }