---
name: "lltsv"
section: "1"
platform: "linux"
package: "lltsv"
version: "0.7.0-3+b8"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/lltsv"
---

# lltsv(1)

List specified keys of LTSV (Labeled Tab Separated Values)

## NAME

lltsv - List specified keys of LTSV (Labeled Tab Separated Values)

## SYNOPSIS

- lltsv \[global options\] command \[command options\] \[arguments...\]

  lltsv \[**--key** value\] \[**-k** value\] \[**--no-key**\] \[**-K**\] \[**--ignore-key** value\] \[**-i** value\] \[**--filter** value\] \[**-f** value\]  \[**--expr** value\] \[**-e** value\] \[**--help**\] \[**-h**\] \[**--version**\] \[**-v**\]

## DESCRIPTION

lltsv is a command line tool to list specified keys of LTSV (Labeled Tab Separated Values) text with colorized output to a terminal. It supports to filter with some comparing operators (arithmetic expression or regular expression)

## OPTIONS

- **--key** value

  keys to output (multiple keys separated by ,)

- **--no-key**, **-K**

  output without keys (and without color)

- **--ignore-key** value, **-i** value

  ignored keys to output (multiple keys separated by ,)

- **--filter** value, **-f** value

  filter expression to output

- **--expr** value, **-e** value

  evaluate value by expression to output

- **--help**, **-h**

  show help

- **--version**, **-v**

  print the version

## EXAMPLES

- Example1:

  $ echo "foo:aaa\\tbar:bbb" \| lltsv **-k** foo,bar

  - foo:aaa bar:bbb

    The output is colorized as default when you outputs to a terminal. The coloring is disabled if you pipe or redirect outputs.

- Example2:

  $ echo "foo:aaa\\tbar:bbb" \| lltsv **-k** foo,bar **-K**

  - aaa bbb

    Eliminate labels with "-K" option.

- Example3:

  $ lltsv **-k** foo,bar **-K** file\*.log

  Specify input files as arguments.

- Example4:

  $ lltsv **-k** resptime,status,uri **-f** 'resptime \> 6' access\_log

  - `$ lltsv -k resptime,status,uri -f 'resptime > 6' -f 'uri =~ ^/foo' access_log`

    Filter output with "-f" option. Available comparing operators are:

  - •

    \>= \> == \< \<= (arithmetic (float64))

  - •

    \== ==\* != !=\* (string comparison (string))

  - •

    \=~ !~ =~\* !~\* (regular expression (string))

  The comparing operators terminated by \* behave in case-insensitive. You can specify multiple **-f** options (AND condition).

- Example5

  $ lltsv **-k** resptime,upstream\_resptime,diff **-f** 'diff = resptime - upstream\_resptime' access\_log

  - `$ lltsv -k resptime,upstream_resptime,diff_ms -e 'diff_ms = (resptime - upstream_resptime) * 1000' access_log`

    Evaluate value with "-e" option. Available operators are: + - \* / (arithmetic (float64))

## AUTHOR

sonots \<sonots@gmail.com\>

## SEE ALSO

https://github.com/sonots/lltsv