This tool serializes the output of popular command line tools to structured JSON output.

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Project description

JC

JSON CLI output utility

jc is used to JSONify the output of many standard linux cli tools for easier parsing in scripts. See the Parsers section for supported commands.

This allows further command line processing of output with tools like jq simply by piping commands:

$ ls -l /usr/bin | jc --ls | jq '.[] | select(.size|tonumber > 50000000)'
{
  "filename": "emacs",
  "flags": "-r-xr-xr-x",
  "links": 1,
  "owner": "root",
  "group": "wheel",
  "size": "117164432",
  "date": "May 3 22:26"
}

The jc parsers can also be used as python modules. In this case the output will be a python dictionary instead of JSON:

>>> import jc.parsers.ls
>>> 
>>> data='''-rwxr-xr-x  1 root  wheel    23648 May  3 22:26 cat
... -rwxr-xr-x  1 root  wheel    30016 May  3 22:26 chmod
... -rwxr-xr-x  1 root  wheel    29024 May  3 22:26 cp
... -rwxr-xr-x  1 root  wheel   375824 May  3 22:26 csh
... -rwxr-xr-x  1 root  wheel    28608 May  3 22:26 date
... -rwxr-xr-x  1 root  wheel    32000 May  3 22:26 dd
... -rwxr-xr-x  1 root  wheel    23392 May  3 22:26 df
... -rwxr-xr-x  1 root  wheel    18128 May  3 22:26 echo'''
>>> 
>>> jc.parsers.ls.parse(data)
[{'filename': 'cat', 'flags': '-rwxr-xr-x', 'links': 1, 'owner': 'root', 'group': 'wheel', 'size': '23648', 
'date': 'May 3 22:26'}, {'filename': 'chmod', 'flags': '-rwxr-xr-x', 'links': 1, 'owner': 'root', 
'group': 'wheel', 'size': '30016', 'date': 'May 3 22:26'}, {'filename': 'cp', 'flags': '-rwxr-xr-x', 
'links': 1, 'owner': 'root', 'group': 'wheel', 'size': '29024', 'date': 'May 3 22:26'}, {'filename': 'csh', 
'flags': '-rwxr-xr-x', 'links': 1, 'owner': 'root', 'group': 'wheel', 'size': '375824', 'date': 'May 3 22:26'}, 
{'filename': 'date', 'flags': '-rwxr-xr-x', 'links': 1, 'owner': 'root', 'group': 'wheel', 'size': '28608', 
'date': 'May 3 22:26'}, {'filename': 'dd', 'flags': '-rwxr-xr-x', 'links': 1, 'owner': 'root', 'group': 'wheel', 
'size': '32000', 'date': 'May 3 22:26'}, {'filename': 'df', 'flags': '-rwxr-xr-x', 'links': 1, 'owner': 'root', 
'group': 'wheel', 'size': '23392', 'date': 'May 3 22:26'}, {'filename': 'echo', 'flags': '-rwxr-xr-x', 
'links': 1, 'owner': 'root', 'group': 'wheel', 'size': '18128', 'date': 'May 3 22:26'}]

The goal is to keep the resulting JSON as flat and simple as possible. Also, keys have been converted to lowercase and special characters are replaced whenever possible. Numbers are kept as strings because, depending on context or the output options, numbers can sometimes turn into strings. (e.g 'human readable' options)

Installation

$ pip3 install --upgrade jc

Usage

jc PARSER [OPTIONS]

jc accepts piped input from STDIN and outputs a JSON representation of the previous command's output to STDOUT. The JSON output can be compact or pretty formatted.

Parsers

--df enables the df parser
--env enables the env parser
--free enables the free parser
--history enables the history parser
--ifconfig enables the ifconfig parser
--iptables enables the iptables parser
--jobs enables the jobs parser
--ls enables the ls parser
--lsblk enables the lsblk parser
--lsmod enables the lsmod parser
--lsof enables the lsof parser
--mount enables the mount parser
--netstat enables the netstat parser
--ps enables the ps parser
--route enables the route parser
--uname enables the uname -a parser
--uptime enables the uptime parser
--w enables the w parser

Options

-p specifies whether to pretty format the JSON output

Examples

df

$ df | jc --df -p
[
  {
    "filesystem": "udev",
    "1k-blocks": "977500",
    "used": "0",
    "available": "977500",
    "use_percent": "0%",
    "mounted": "/dev"
  },
  {
    "filesystem": "tmpfs",
    "1k-blocks": "201732",
    "used": "1204",
    "available": "200528",
    "use_percent": "1%",
    "mounted": "/run"
  },
  {
    "filesystem": "/dev/sda2",
    "1k-blocks": "20508240",
    "used": "5748312",
    "available": "13695124",
    "use_percent": "30%",
    "mounted": "/"
  },
  {
    "filesystem": "tmpfs",
    "1k-blocks": "1008648",
    "used": "0",
    "available": "1008648",
    "use_percent": "0%",
    "mounted": "/dev/shm"
  }
  ...
]

env

$ env | jc --env -p
{
  "TERM": "xterm-256color",
  "SHELL": "/bin/bash",
  "USER": "root",
  "PATH": "/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin",
  "PWD": "/root",
  "LANG": "en_US.UTF-8",
  "HOME": "/root",
  "LOGNAME": "root",
  "_": "/usr/bin/env"
}

free

$ free | jc --free -p
[
  {
    "type": "Mem",
    "total": "2017300",
    "used": "213104",
    "free": "1148452",
    "shared": "1176",
    "buff_cache": "655744",
    "available": "1622204"
  },
  {
    "type": "Swap",
    "total": "2097148",
    "used": "0",
    "free": "2097148"
  }
]

history

$ history | jc --history -p
{
  "n118": "sleep 100",
  "n119": "ls /bin",
  "n120": "echo \"hello\"",
  "n121": "docker images",
  ...
}

ifconfig

$ ifconfig | jc --ifconfig -p
[
  {
    "name": "docker0",
    "flags": "4099",
    "state": "UP,BROADCAST,MULTICAST",
    "mtu": "1500",
    "ipv4_addr": "172.17.0.1",
    "ipv4_mask": "255.255.0.0",
    "ipv4_bcast": "0.0.0.0",
    "mac_addr": "02:42:53:18:31:cc",
    "type": "Ethernet",
    "rx_packets": "0",
    "rx_errors": "0",
    "rx_dropped": "0",
    "rx_overruns": "0",
    "rx_frame": "0",
    "tx_packets": "0",
    "tx_errors": "0",
    "tx_dropped": "0",
    "tx_overruns": "0",
    "tx_carrier": "0",
    "tx_collisions": "0",
    "ipv6_addr": null,
    "ipv6_mask": null,
    "ipv6_scope": null,
    "metric": null
  },
  {
    "name": "ens33",
    "flags": "4163",
    "state": "UP,BROADCAST,RUNNING,MULTICAST",
    "mtu": "1500",
    "ipv4_addr": "192.168.71.135",
    "ipv4_mask": "255.255.255.0",
    "ipv4_bcast": "192.168.71.255",
    "ipv6_addr": "fe80::c1cb:715d:bc3e:b8a0",
    "ipv6_mask": "64",
    "ipv6_scope": "link",
    "mac_addr": "00:0c:29:3b:58:0e",
    "type": "Ethernet",
    "rx_packets": "26348",
    "rx_errors": "0",
    "rx_dropped": "0",
    "rx_overruns": "0",
    "rx_frame": "0",
    "tx_packets": "5308",
    "tx_errors": "0",
    "tx_dropped": "0",
    "tx_overruns": "0",
    "tx_carrier": "0",
    "tx_collisions": "0",
    "metric": null
  },
  {
    "name": "lo",
    "flags": "73",
    "state": "UP,LOOPBACK,RUNNING",
    "mtu": "65536",
    "ipv4_addr": "127.0.0.1",
    "ipv4_mask": "255.0.0.0",
    "ipv4_bcast": null,
    "ipv6_addr": "::1",
    "ipv6_mask": "128",
    "ipv6_scope": "host",
    "mac_addr": null,
    "type": "Local Loopback",
    "rx_packets": "64",
    "rx_errors": "0",
    "rx_dropped": "0",
    "rx_overruns": "0",
    "rx_frame": "0",
    "tx_packets": "64",
    "tx_errors": "0",
    "tx_dropped": "0",
    "tx_overruns": "0",
    "tx_carrier": "0",
    "tx_collisions": "0",
    "metric": null
  }
]

iptables

$ sudo iptables -L -t nat | jc --iptables -p
[
  {
    "chain": "PREROUTING",
    "rules": [
      {
        "target": "PREROUTING_direct",
        "prot": "all",
        "opt": "--",
        "source": "anywhere",
        "destination": "anywhere"
      },
      {
        "target": "PREROUTING_ZONES_SOURCE",
        "prot": "all",
        "opt": "--",
        "source": "anywhere",
        "destination": "anywhere"
      },
      {
        "target": "PREROUTING_ZONES",
        "prot": "all",
        "opt": "--",
        "source": "anywhere",
        "destination": "anywhere"
      },
      {
        "target": "DOCKER",
        "prot": "all",
        "opt": "--",
        "source": "anywhere",
        "destination": "anywhere",
        "options": "ADDRTYPE match dst-type LOCAL"
      }
    ]
  },
  {
    "chain": "INPUT",
    "rules": []
  },
  {
    "chain": "OUTPUT",
    "rules": [
      {
        "target": "OUTPUT_direct",
        "prot": "all",
        "opt": "--",
        "source": "anywhere",
        "destination": "anywhere"
      },
      {
        "target": "DOCKER",
        "prot": "all",
        "opt": "--",
        "source": "anywhere",
        "destination": "!loopback/8",
        "options": "ADDRTYPE match dst-type LOCAL"
      }
    ]
  },
  ...
]

$ sudo iptables -vnL -t filter | jc --iptables -p
[
  {
    "chain": "INPUT",
    "rules": [
      {
        "pkts": "1571",
        "bytes": "3394K",
        "target": "ACCEPT",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0",
        "options": "ctstate RELATED,ESTABLISHED"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "ACCEPT",
        "prot": "all",
        "opt": "--",
        "in": "lo",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0"
      },
      {
        "pkts": "711",
        "bytes": "60126",
        "target": "INPUT_direct",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0"
      },
      {
        "pkts": "711",
        "bytes": "60126",
        "target": "INPUT_ZONES_SOURCE",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0"
      },
      {
        "pkts": "711",
        "bytes": "60126",
        "target": "INPUT_ZONES",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "DROP",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0",
        "options": "ctstate INVALID"
      },
      {
        "pkts": "710",
        "bytes": "60078",
        "target": "REJECT",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0",
        "options": "reject-with icmp-host-prohibited"
      }
    ]
  },
  {
    "chain": "FORWARD",
    "rules": [
      {
        "pkts": "0",
        "bytes": "0",
        "target": "DOCKER-ISOLATION",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "DOCKER",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "docker0",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "ACCEPT",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "docker0",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0",
        "options": "ctstate RELATED,ESTABLISHED"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "ACCEPT",
        "prot": "all",
        "opt": "--",
        "in": "docker0",
        "out": "!docker0",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "ACCEPT",
        "prot": "all",
        "opt": "--",
        "in": "docker0",
        "out": "docker0",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "ACCEPT",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0",
        "options": "ctstate RELATED,ESTABLISHED"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "ACCEPT",
        "prot": "all",
        "opt": "--",
        "in": "lo",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "FORWARD_direct",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "FORWARD_IN_ZONES_SOURCE",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "FORWARD_IN_ZONES",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "FORWARD_OUT_ZONES_SOURCE",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "FORWARD_OUT_ZONES",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "DROP",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0",
        "options": "ctstate INVALID"
      },
      {
        "pkts": "0",
        "bytes": "0",
        "target": "REJECT",
        "prot": "all",
        "opt": "--",
        "in": "*",
        "out": "*",
        "source": "0.0.0.0/0",
        "destination": "0.0.0.0/0",
        "options": "reject-with icmp-host-prohibited"
      }
    ]
  },
  ...
]

jobs

$ jobs -l | jc --jobs -p
[
  {
    "job_number": "1",
    "pid": "19510",
    "status": "Running",
    "command": "sleep 1000 &"
  },
  {
    "job_number": "2",
    "pid": "19511",
    "status": "Running",
    "command": "sleep 1001 &"
  },
  {
    "job_number": "3",
    "pid": "19512",
    "history": "previous",
    "status": "Running",
    "command": "sleep 1002 &"
  },
  {
    "job_number": "4",
    "pid": "19513",
    "history": "current",
    "status": "Running",
    "command": "sleep 1003 &"
  }
]

ls

$ ls -l /usr/bin | jc --ls -p
[
  {
    "filename": "apropos",
    "link_to": "whatis",
    "flags": "lrwxrwxrwx.",
    "links": "1",
    "owner": "root",
    "group": "root",
    "size": "6",
    "date": "Aug 15 10:53"
  },
  {
    "filename": "arch",
    "flags": "-rwxr-xr-x.",
    "links": "1",
    "owner": "root",
    "group": "root",
    "size": "33080",
    "date": "Aug 19 23:25"
  },
  {
    "filename": "awk",
    "link_to": "gawk",
    "flags": "lrwxrwxrwx.",
    "links": "1",
    "owner": "root",
    "group": "root",
    "size": "4",
    "date": "Aug 15 10:53"
  },
  {
    "filename": "base64",
    "flags": "-rwxr-xr-x.",
    "links": "1",
    "owner": "root",
    "group": "root",
    "size": "37360",
    "date": "Aug 19 23:25"
  },
  {
    "filename": "basename",
    "flags": "-rwxr-xr-x.",
    "links": "1",
    "owner": "root",
    "group": "root",
    "size": "29032",
    "date": "Aug 19 23:25"
  },
  {
    "filename": "bash",
    "flags": "-rwxr-xr-x.",
    "links": "1",
    "owner": "root",
    "group": "root",
    "size": "964600",
    "date": "Aug 8 05:06"
  },
  ...
]

lsblk

$ lsblk | jc --lsblk -p
[
  {
    "name": "sda",
    "maj_min": "8:0",
    "rm": "0",
    "size": "20G",
    "ro": "0",
    "type": "disk"
  },
  {
    "name": "sda1",
    "maj_min": "8:1",
    "rm": "0",
    "size": "1G",
    "ro": "0",
    "type": "part",
    "mountpoint": "/boot"
  },
  {
    "name": "sda2",
    "maj_min": "8:2",
    "rm": "0",
    "size": "19G",
    "ro": "0",
    "type": "part"
  },
  {
    "name": "centos-root",
    "maj_min": "253:0",
    "rm": "0",
    "size": "17G",
    "ro": "0",
    "type": "lvm",
    "mountpoint": "/"
  },
  {
    "name": "centos-swap",
    "maj_min": "253:1",
    "rm": "0",
    "size": "2G",
    "ro": "0",
    "type": "lvm",
    "mountpoint": "[SWAP]"
  },
  {
    "name": "sr0",
    "maj_min": "11:0",
    "rm": "1",
    "size": "1024M",
    "ro": "0",
    "type": "rom"
  }
]

lsmod

$ lsmod | jc --lsmod -p
[
  ...
  {
    "module": "nf_conntrack",
    "size": "139224",
    "used": "7",
    "by": [
      "nf_nat",
      "nf_nat_ipv4",
      "nf_nat_ipv6",
      "xt_conntrack",
      "nf_nat_masquerade_ipv4",
      "nf_conntrack_ipv4",
      "nf_conntrack_ipv6"
    ]
  },
  {
    "module": "ip_set",
    "size": "45799",
    "used": "0"
  },
  {
    "module": "nfnetlink",
    "size": "14519",
    "used": "1",
    "by": [
      "ip_set"
    ]
  },
  {
    "module": "ebtable_filter",
    "size": "12827",
    "used": "1"
  },
  {
    "module": "ebtables",
    "size": "35009",
    "used": "2",
    "by": [
      "ebtable_nat",
      "ebtable_filter"
    ]
  },
  ...
]

lsof

$ sudo lsof | jc --lsof -p | more
[
  {
    "command": "systemd",
    "pid": "1",
    "tid": null,
    "user": "root",
    "fd": "cwd",
    "type": "DIR",
    "device": "8,2",
    "size_off": "4096",
    "node": "2",
    "name": "/"
  },
  {
    "command": "systemd",
    "pid": "1",
    "tid": null,
    "user": "root",
    "fd": "rtd",
    "type": "DIR",
    "device": "8,2",
    "size_off": "4096",
    "node": "2",
    "name": "/"
  },
  {
    "command": "systemd",
    "pid": "1",
    "tid": null,
    "user": "root",
    "fd": "txt",
    "type": "REG",
    "device": "8,2",
    "size_off": "1595792",
    "node": "668802",
    "name": "/lib/systemd/systemd"
  },
  {
    "command": "systemd",
    "pid": "1",
    "tid": null,
    "user": "root",
    "fd": "mem",
    "type": "REG",
    "device": "8,2",
    "size_off": "1700792",
    "node": "656167",
    "name": "/lib/x86_64-linux-gnu/libm-2.27.so"
  },
  {
    "command": "systemd",
    "pid": "1",
    "tid": null,
    "user": "root",
    "fd": "mem",
    "type": "REG",
    "device": "8,2",
    "size_off": "121016",
    "node": "655394",
    "name": "/lib/x86_64-linux-gnu/libudev.so.1.6.9"
  },
  ...
]

mount

$ mount | jc --mount -p
[
  {
    "filesystem": "sysfs",
    "mount_point": "/sys",
    "type": "sysfs",
    "access": [
      "rw",
      "nosuid",
      "nodev",
      "noexec",
      "relatime"
    ]
  },
  {
    "filesystem": "proc",
    "mount_point": "/proc",
    "type": "proc",
    "access": [
      "rw",
      "nosuid",
      "nodev",
      "noexec",
      "relatime"
    ]
  },
  {
    "filesystem": "udev",
    "mount_point": "/dev",
    "type": "devtmpfs",
    "access": [
      "rw",
      "nosuid",
      "relatime",
      "size=977500k",
      "nr_inodes=244375",
      "mode=755"
    ]
  },
  ...
]

netstat

$ netstat -p | jc --netstat -p
[
  {
    "transport_protocol": "tcp",
    "network_protocol": "ipv4",
    "local_address": "localhost.localdo",
    "local_port": "34480",
    "foreign_address": "lb-192-30-255-113",
    "foreign_port": "https",
    "state": "ESTABLISHED",
    "pid": 53550,
    "program_name": "git-remote-ht",
    "receive_q": "0",
    "send_q": "0"
  },
  {
    "transport_protocol": "tcp",
    "network_protocol": "ipv4",
    "local_address": "localhost.localdo",
    "local_port": "34478",
    "foreign_address": "lb-192-30-255-113",
    "foreign_port": "https",
    "state": "ESTABLISHED",
    "pid": 53550,
    "program_name": "git-remote-ht",
    "receive_q": "0",
    "send_q": "0"
  }
]

$ sudo netstat -lpn | jc --netstat -p
[
  {
    "transport_protocol": "tcp",
    "network_protocol": "ipv4",
    "local_address": "127.0.0.1",
    "local_port": "25",
    "foreign_address": "0.0.0.0",
    "foreign_port": "*",
    "state": "LISTEN",
    "pid": "1584",
    "program_name": "master",
    "receive_q": "0",
    "send_q": "0"
  },
  {
    "transport_protocol": "tcp",
    "network_protocol": "ipv4",
    "local_address": "0.0.0.0",
    "local_port": "22",
    "foreign_address": "0.0.0.0",
    "foreign_port": "*",
    "state": "LISTEN",
    "pid": "1213",
    "program_name": "sshd",
    "receive_q": "0",
    "send_q": "0"
  },
  {
    "transport_protocol": "tcp",
    "network_protocol": "ipv6",
    "local_address": "::1",
    "local_port": "25",
    "foreign_address": "::",
    "foreign_port": "*",
    "state": "LISTEN",
    "pid": "1584",
    "program_name": "master",
    "receive_q": "0",
    "send_q": "0"
  },
  {
    "transport_protocol": "udp",
    "network_protocol": "ipv4",
    "local_address": "0.0.0.0",
    "local_port": "68",
    "foreign_address": "0.0.0.0",
    "foreign_port": "*",
    "pid": "19177",
    "program_name": "dhclient",
    "receive_q": "0",
    "send_q": "0"
  },
  ...
]

ps

$ ps -ef | jc --ps -p
[
  ...
  {
    "uid": "root",
    "pid": "545",
    "ppid": "1",
    "c": "0",
    "stime": "Oct21",
    "tty": "?",
    "time": "00:00:03",
    "cmd": "/usr/lib/systemd/systemd-journald"
  },
  {
    "uid": "root",
    "pid": "566",
    "ppid": "1",
    "c": "0",
    "stime": "Oct21",
    "tty": "?",
    "time": "00:00:00",
    "cmd": "/usr/sbin/lvmetad -f"
  },
  {
    "uid": "root",
    "pid": "580",
    "ppid": "1",
    "c": "0",
    "stime": "Oct21",
    "tty": "?",
    "time": "00:00:00",
    "cmd": "/usr/lib/systemd/systemd-udevd"
  },
  {
    "uid": "root",
    "pid": "659",
    "ppid": "2",
    "c": "0",
    "stime": "Oct21",
    "tty": "?",
    "time": "00:00:00",
    "cmd": "[kworker/u257:0]"
  },
  {
    "uid": "root",
    "pid": "666",
    "ppid": "2",
    "c": "0",
    "stime": "Oct21",
    "tty": "?",
    "time": "00:00:00",
    "cmd": "[hci0]"
  },
  ...
]

route

$ route | jc --route -p
[
  {
    "destination": "default",
    "gateway": "gateway",
    "genmask": "0.0.0.0",
    "flags": "UG",
    "metric": "100",
    "ref": "0",
    "use": "0",
    "iface": "ens33"
  },
  {
    "destination": "172.17.0.0",
    "gateway": "0.0.0.0",
    "genmask": "255.255.0.0",
    "flags": "U",
    "metric": "0",
    "ref": "0",
    "use": "0",
    "iface": "docker0"
  },
  {
    "destination": "192.168.71.0",
    "gateway": "0.0.0.0",
    "genmask": "255.255.255.0",
    "flags": "U",
    "metric": "100",
    "ref": "0",
    "use": "0",
    "iface": "ens33"
  }
]

uname -a

$ uname -a | jc --uname -p
{
  "kernel_name": "Linux",
  "node_name": "user-ubuntu",
  "kernel_release": "4.15.0-65-generic",
  "operating_system": "GNU/Linux",
  "hardware_platform": "x86_64",
  "processor": "x86_64",
  "machine": "x86_64",
  "kernel_version": "#74-Ubuntu SMP Tue Sep 17 17:06:04 UTC 2019"
}

uptime

$ uptime | jc --uptime -p
{
  "time": "16:52",
  "uptime": "3 days, 4:49",
  "users": "5",
  "load_1m": "1.85",
  "load_5m": "1.90",
  "load_15m": "1.91"
}

w

$ w | jc --w -p
[
  {
    "user": "root",
    "tty": "ttyS0",
    "from": "-",
    "login_at": "Mon20",
    "idle": "0.00s",
    "jcpu": "14.70s",
    "pcpu": "0.00s",
    "what": "bash"
  },
  {
    "user": "root",
    "tty": "pts/0",
    "from": "192.168.71.1",
    "login_at": "Thu22",
    "idle": "22:46m",
    "jcpu": "0.05s",
    "pcpu": "0.05s",
    "what": "-bash"
  }
]

Contributions

Feel free to add/improve code or parsers!

Acknowledgments

ifconfig-parser module from https://github.com/KnightWhoSayNi/ifconfig-parser
Parsing code from Conor Heine at https://gist.github.com/cahna/43a1a3ff4d075bcd71f9d7120037a501

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1.25.2

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1.23.1

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1.22.5

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1.22.4

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1.22.3

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1.22.0

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1.21.2

Aug 29, 2022

1.21.1

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1.21.0

Aug 21, 2022

1.20.4

Jul 23, 2022

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Jul 6, 2022

1.20.1

Jun 15, 2022

1.20.0

May 31, 2022

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May 13, 2022

1.18.8

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1.18.0

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1.17.7

Jan 14, 2022

1.17.6

Jan 3, 2022

1.17.5

Dec 21, 2021

1.17.4

Dec 9, 2021

1.17.3

Dec 3, 2021

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Nov 18, 2021

1.17.1

Oct 30, 2021

1.17.0

Sep 26, 2021

1.16.2

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1.16.1

Aug 16, 2021

1.16.0

Jul 20, 2021

1.15.6

Jun 28, 2021

1.15.5

May 28, 2021

1.15.4

May 17, 2021

1.15.3

Apr 26, 2021

1.15.2

Apr 19, 2021

1.15.1

Apr 13, 2021

1.15.0

Apr 7, 2021

1.14.4

Mar 5, 2021

1.14.3

Feb 10, 2021

1.14.2

Feb 5, 2021

1.14.1

Jan 6, 2021

1.14.0

Jan 1, 2021

1.13.4

Aug 5, 2020

1.13.3

Aug 5, 2020

1.13.2

Aug 3, 2020

1.13.1

Jul 28, 2020

1.13.0

Jul 28, 2020

1.12.1

Jul 11, 2020

1.12.0

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1.11.8

Jun 25, 2020

1.11.7

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1.11.6

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1.11.5

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1.11.0

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1.10.9

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1.10.7

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1.10.5

Apr 14, 2020

1.10.4

Apr 12, 2020

1.10.3

Apr 9, 2020

1.10.2

Apr 9, 2020

1.10.1

Apr 5, 2020

1.10.0

Apr 3, 2020

1.9.3

Mar 27, 2020

1.9.2

Mar 13, 2020

1.9.1

Mar 12, 2020

1.9.0

Mar 11, 2020

1.8.1

Mar 8, 2020

1.8.0

Mar 3, 2020

1.7.5

Feb 27, 2020

1.7.4

Feb 19, 2020

1.7.3

Feb 14, 2020

1.7.2

Feb 8, 2020

1.7.1

Feb 6, 2020

1.6.1

Dec 17, 2019

1.5.1

Nov 17, 2019

1.1.1

Oct 31, 2019

This version

1.0.1

Oct 26, 2019

0.9.1

Oct 24, 2019

0.8.1

Oct 23, 2019

0.6.4

Oct 22, 2019

0.5.5

Oct 19, 2019

0.2.0

Oct 17, 2019

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jc 1.0.1

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JC

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df

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ifconfig

iptables

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