jc

jc converts the output of many standard unix command line tools and file-types to dictionaries and lists of dictionaries.

• Project Homepage [EN]

Documentation

Further Information

• Episode 341 - Long Term Rolling (18.02.2020) [EN] @ LINUX Unplugged

Syntax

COMMAND | jc [PARAMETER ...] PARSER
jc [PARAMETER ...] COMMAND

Parameters

-p

Pretty format the JSON output.

-q

Quiet mode. Suppresses warning messages.

-r

Raw output. Provides a more literal JSON output with all values as text and no additional sematic processing

Parsers

--arp

Enables the arp command parser.

--crontab

Enables the crontab command and file parser.

--crontab-u

Enables the crontab file parser with user support.

--df

Enables the df command parser.

--dig

Enables the dig command parser.

--du

Enables the du command parser.

--env

Enables the env command parser.

--free

Enables the free command parser.

--fstab

Enables the /etc/fstab file parser.

--history

Enables the history command parser.

--hosts

Enables the /etc/hosts file parser.

--id

Enables the id command parser.

--ifconfig

Enables the ifconfig command parser.

--ini

Enables the INI file parser.

--iptables

Enables the iptables command parser.

--jobs

Enables the jobs command parser.

--ls

Enables the ls command parser.

--lsblk

Enables the lsblk command parser.

--lsmod

Enables the lsmod command parser.

--lsof

Enables the lsof command parser.

--mount

Enables the mount command parser.

--netstat

Enables the netstat command parser.

--pip-list

Enables the pip list command parser.

--pip-show

Enables the pip show command parser.

--ps

Enables the ps command parser.

--route

Enables the route command parser.

--ss

Enables the ss command parser.

--stat

Enables the stat command parser.

--systemctl

Enables the systemctl command parser.

--systemctl-lj

Enables the systemctl list-jobs command parser.

--systemctl-ls

Enables the systemctl list-sockets command parser.

--systemctl-luf

Enables the systemctl list-unit-files command parser.

--uname

Enables the uname -a command parser.

--uptime

Enables the uptime command parser.

--w

Enables the w command parser.

--xml

Enables the XML file parser.

--yaml

Enables the YAML file parser.

Examples

Convert the ARP cache list to JSON with jc, remove some attributes and output it nicely with jq

arp -a | jc --arp | jq 'del(.[].name, .[].permanent)'

Output:

[
  {
    "address": "10.0.0.1",
    "hwtype": "ethernet",
    "hwaddress": "0:0:5e:0:1:1",
    "iface": "en9"
  },
  {
    "address": "10.0.0.6",
    "hwtype": "ethernet",
    "hwaddress": "b8:69:f4:1:70:b1",
    "iface": "en9"
  }
]