Difference between revisions of "yq parser"
From thelinuxwiki
| (7 intermediate revisions by one user not shown) | |||
| Line 5: | Line 5: | ||
foo: | foo: | ||
ipaddr: 192.168.1.1 | ipaddr: 192.168.1.1 | ||
| − | desc: "foo" | + | desc: "foo is cool" |
bar: | bar: | ||
ipaddr: 10.0.0.1 | ipaddr: 10.0.0.1 | ||
| − | desc: "bar" | + | desc: "bar is cooler" |
</source> | </source> | ||
| Line 16: | Line 16: | ||
{ | { | ||
"ipaddr": "192.168.1.1" | "ipaddr": "192.168.1.1" | ||
| − | } | + | }yq '.webserver.hosts[] | select(.ipaddr == "192.168.1.1")' foobar.yml |
pass an arg | pass an arg | ||
$ '''yq --arg IPADDR "$ipaddr" '.webserver.hosts[] | select(.ipaddr == "192.168.1.1")' foobar.yml''' | $ '''yq --arg IPADDR "$ipaddr" '.webserver.hosts[] | select(.ipaddr == "192.168.1.1")' foobar.yml''' | ||
| + | { | ||
| + | "ipaddr": "192.168.1.1", | ||
| + | "desc": "foo" | ||
| + | } | ||
| + | |||
| + | show only keys | ||
| + | $ '''yq '.webserver.hosts | keys | .[]' foobar.yml''' | ||
| + | "bar" | ||
| + | "foo" | ||
| + | |||
| + | csv of key + ipaddr (without quotes), use the -r (--raw-output) option: | ||
| + | |||
| + | $ '''yq -r '.webserver.hosts | to_entries[] | "\(.key),\(.value.ipaddr)"' foobar.yml''' | ||
| + | foo,192.168.1.1 | ||
| + | bar,10.0.0.1 | ||
Latest revision as of 15:50, 23 July 2026
file name foobarr.yml contents:
webserver: hosts: foo: ipaddr: 192.168.1.1 desc: "foo is cool" bar: ipaddr: 10.0.0.1 desc: "bar is cooler"
$ yq '.webserver.hosts[] | select(.ipaddr == "192.168.1.1")' foobar.yml
{
"ipaddr": "192.168.1.1"
}yq '.webserver.hosts[] | select(.ipaddr == "192.168.1.1")' foobar.yml
pass an arg
$ yq --arg IPADDR "$ipaddr" '.webserver.hosts[] | select(.ipaddr == "192.168.1.1")' foobar.yml
{
"ipaddr": "192.168.1.1",
"desc": "foo"
}
show only keys
$ yq '.webserver.hosts | keys | .[]' foobar.yml "bar" "foo"
csv of key + ipaddr (without quotes), use the -r (--raw-output) option:
$ yq -r '.webserver.hosts | to_entries[] | "\(.key),\(.value.ipaddr)"' foobar.yml foo,192.168.1.1 bar,10.0.0.1
