Skip to content

read_lines

Parses an incoming bytes stream into events.

read_lines [skip_empty=bool, split_at_null=bool, split_at_regex=string]

The read_lines operator takes its input bytes and splits it at a newline character.

Newline characters include:

  • \n
  • \r\n

The resulting events have a single field called line.

Ignores empty lines in the input.

Use null byte (\0) as the delimiter instead of newline characters.

Use the specified regex as the delimiter instead of newline characters. The regex flavor is Perl compatible and documented here.

load_file "events.log"
read_lines
is_error = line.starts_with("error:")

Split Syslog-like events without newline terminators from a TCP input

Section titled “Split Syslog-like events without newline terminators from a TCP input”
load_tcp "0.0.0.0:514"
read_lines split_at_regex="(?=<[0-9]+>)"
this = line.parse_syslog()

read_ssv, read_tsv, read_xsv, write_lines