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@ -17,7 +17,7 @@
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},
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{
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"location": "/read/",
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"text": "yq r <yaml_file|json_file> <path>\n\n\n\n\nThis command can take a json file as input too, and will output yaml unless specified to export as json (-j)\n\n\nBasic\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq r sample.yaml b.c\n\n\n\n\nwill output the value of '2'.\n\n\nFrom Stdin\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\ncat sample.yaml | yq r - b.c\n\n\n\n\nwill output the value of '2'.\n\n\nSplat\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\n---\nbob:\n item1:\n cats: bananas\n item2:\n cats: apples\n\n\n\n\nthen\n\n\nyq r sample.yaml bob.*.cats\n\n\n\n\nwill output\n\n\n- bananas\n- apples\n\n\n\n\nHandling '.' in the yaml key\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb.x:\n c: 2\n\n\n\n\nthen\n\n\nyq r sample.yaml \\\"b.x\\\".c\n\n\n\n\nwill output the value of '2'.\n\n\nArrays\n\u00b6\n\n\nYou can give an index to access a specific element:\ne.g.: given a sample file of\n\n\nb:\n e:\n - name: fred\n value: 3\n - name: sam\n value: 4\n\n\n\n\nthen\n\n\nyq r sample.yaml b.e[1].name\n\n\n\n\nwill output 'sam'\n\n\nArray Splat\n\u00b6\n\n\ne.g.: given a sample file of\n\n\nb:\n e:\n - name: fred\n value: 3\n - name: sam\n value: 4\n\n\n\n\nthen\n\n\nyq r sample.yaml b.e[*].name\n\n\n\n\nwill output:\n\n\n- fred\n- sam\n\n\n\n\nKeys with dots\n\u00b6\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n foo.bar: 7\n\n\n\n\nyaml r sample.yaml b[foo.bar]\n\n\n\n\nyaml w sample.yaml b[foo.bar] 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.",
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"text": "yq r <yaml_file|json_file> <path>\n\n\n\n\nThis command can take a json file as input too, and will output yaml unless specified to export as json (-j)\n\n\nBasic\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq r sample.yaml b.c\n\n\n\n\nwill output the value of '2'.\n\n\nFrom Stdin\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\ncat sample.yaml | yq r - b.c\n\n\n\n\nwill output the value of '2'.\n\n\nSplat\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\n---\nbob:\n item1:\n cats: bananas\n item2:\n cats: apples\n\n\n\n\nthen\n\n\nyq r sample.yaml bob.*.cats\n\n\n\n\nwill output\n\n\n- bananas\n- apples\n\n\n\n\nHandling '.' in the yaml key\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb.x:\n c: 2\n\n\n\n\nthen\n\n\nyq r sample.yaml \\\"b.x\\\".c\n\n\n\n\nwill output the value of '2'.\n\n\nArrays\n\u00b6\n\n\nYou can give an index to access a specific element:\ne.g.: given a sample file of\n\n\nb:\n e:\n - name: fred\n value: 3\n - name: sam\n value: 4\n\n\n\n\nthen\n\n\nyq r sample.yaml 'b.e[1].name'\n\n\n\n\nwill output 'sam'\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.\n\n\nArray Splat\n\u00b6\n\n\ne.g.: given a sample file of\n\n\nb:\n e:\n - name: fred\n value: 3\n - name: sam\n value: 4\n\n\n\n\nthen\n\n\nyq r sample.yaml 'b.e[*].name'\n\n\n\n\nwill output:\n\n\n- fred\n- sam\n\n\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.\n\n\nKeys with dots\n\u00b6\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n foo.bar: 7\n\n\n\n\nyaml r sample.yaml 'b[foo.bar]'\n\n\n\n\nyaml w sample.yaml 'b[foo.bar]' 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.",
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"title": "Read"
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},
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{
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@ -42,22 +42,22 @@
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},
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{
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"location": "/read/#arrays",
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"text": "You can give an index to access a specific element:\ne.g.: given a sample file of b:\n e:\n - name: fred\n value: 3\n - name: sam\n value: 4 then yq r sample.yaml b.e[1].name will output 'sam'",
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"text": "You can give an index to access a specific element:\ne.g.: given a sample file of b:\n e:\n - name: fred\n value: 3\n - name: sam\n value: 4 then yq r sample.yaml 'b.e[1].name' will output 'sam' Note that the path is in quotes to avoid the square brackets being interpreted by your shell.",
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"title": "Arrays"
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},
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{
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"location": "/read/#array-splat",
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"text": "e.g.: given a sample file of b:\n e:\n - name: fred\n value: 3\n - name: sam\n value: 4 then yq r sample.yaml b.e[*].name will output: - fred\n- sam",
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"text": "e.g.: given a sample file of b:\n e:\n - name: fred\n value: 3\n - name: sam\n value: 4 then yq r sample.yaml 'b.e[*].name' will output: - fred\n- sam Note that the path is in quotes to avoid the square brackets being interpreted by your shell.",
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"title": "Array Splat"
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},
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{
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"location": "/read/#keys-with-dots",
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"text": "When specifying a key that has a dot use key lookup indicator. b:\n foo.bar: 7 yaml r sample.yaml b[foo.bar] yaml w sample.yaml b[foo.bar] 9 Any valid yaml key can be specified as part of a key lookup.",
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"text": "When specifying a key that has a dot use key lookup indicator. b:\n foo.bar: 7 yaml r sample.yaml 'b[foo.bar]' yaml w sample.yaml 'b[foo.bar]' 9 Any valid yaml key can be specified as part of a key lookup. Note that the path is in quotes to avoid the square brackets being interpreted by your shell.",
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"title": "Keys with dots"
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},
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{
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"location": "/write/",
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"text": "yq w <yaml_file|json_file> <path> <new value>\n\n\n\n\nThis command can take a json file as input too, and will output yaml unless specified to export as json (-j)\n\n\nTo Stdout\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq w sample.yaml b.c cat\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n\n\n\n\nFrom STDIN\n\u00b6\n\n\ncat sample.yaml | yq w - b.c blah\n\n\n\n\nAdding new fields\n\u00b6\n\n\nAny missing fields in the path will be created on the fly.\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq w sample.yaml b.d[0] \"new thing\"\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n d:\n - new thing\n\n\n\n\nAppending value to an array field\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n d:\n - new thing\n - foo thing\n\n\n\n\nthen\n\n\nyq w sample.yaml b.d[+] \"bar thing\"\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n d:\n - new thing\n - foo thing\n - bar thing\n\n\n\n\nUpdating files in-place\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq w -i sample.yaml b.c cat\n\n\n\n\nwill update the sample.yaml file so that the value of 'c' is cat.\n\n\nUpdating multiple values with a script\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n e:\n - name: Billy Bob\n\n\n\n\nand a script update_instructions.yaml of:\n\n\nb.c: 3\nb.e[0].name: Howdy Partner\n\n\n\n\nthen\n\n\nyq w -s update_instructions.yaml sample.yaml\n\n\n\n\nwill output:\n\n\nb:\n c: 3\n e:\n - name: Howdy Partner\n\n\n\n\nAnd, of course, you can pipe the instructions in using '-':\n\n\ncat update_instructions.yaml | yq w -s - sample.yaml\n\n\n\n\nValues starting with a hyphen (or dash)\n\u00b6\n\n\nThe flag terminator needs to be used to stop the app from attempting to parse the subsequent arguments as flags:\n\n\nyq w -- my.path -3\n\n\n\n\nwill output\n\n\nmy:\n path: -3\n\n\n\n\nKeys with dots\n\u00b6\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n foo.bar: 7\n\n\n\n\nyaml r sample.yaml b[foo.bar]\n\n\n\n\nyaml w sample.yaml b[foo.bar] 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.",
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"text": "yq w <yaml_file|json_file> <path> <new value>\n\n\n\n\nThis command can take a json file as input too, and will output yaml unless specified to export as json (-j)\n\n\nTo Stdout\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq w sample.yaml b.c cat\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n\n\n\n\nFrom STDIN\n\u00b6\n\n\ncat sample.yaml | yq w - b.c blah\n\n\n\n\nAdding new fields\n\u00b6\n\n\nAny missing fields in the path will be created on the fly.\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq w sample.yaml b.d[0] \"new thing\"\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n d:\n - new thing\n\n\n\n\nAppending value to an array field\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n d:\n - new thing\n - foo thing\n\n\n\n\nthen\n\n\nyq w sample.yaml \"b.d[+]\" \"bar thing\"\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n d:\n - new thing\n - foo thing\n - bar thing\n\n\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.\n\n\nUpdating files in-place\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n\n\n\n\nthen\n\n\nyq w -i sample.yaml b.c cat\n\n\n\n\nwill update the sample.yaml file so that the value of 'c' is cat.\n\n\nUpdating multiple values with a script\n\u00b6\n\n\nGiven a sample.yaml file of:\n\n\nb:\n c: 2\n e:\n - name: Billy Bob\n\n\n\n\nand a script update_instructions.yaml of:\n\n\nb.c: 3\nb.e[0].name: Howdy Partner\n\n\n\n\nthen\n\n\nyq w -s update_instructions.yaml sample.yaml\n\n\n\n\nwill output:\n\n\nb:\n c: 3\n e:\n - name: Howdy Partner\n\n\n\n\nAnd, of course, you can pipe the instructions in using '-':\n\n\ncat update_instructions.yaml | yq w -s - sample.yaml\n\n\n\n\nValues starting with a hyphen (or dash)\n\u00b6\n\n\nThe flag terminator needs to be used to stop the app from attempting to parse the subsequent arguments as flags:\n\n\nyq w -- my.path -3\n\n\n\n\nwill output\n\n\nmy:\n path: -3\n\n\n\n\nKeys with dots\n\u00b6\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n foo.bar: 7\n\n\n\n\nyaml r sample.yaml 'b[foo.bar]'\n\n\n\n\nyaml w sample.yaml 'b[foo.bar]' 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.",
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"title": "Write/Update"
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},
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{
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@ -77,7 +77,7 @@
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},
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{
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"location": "/write/#appending-value-to-an-array-field",
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"text": "Given a sample.yaml file of: b:\n c: 2\n d:\n - new thing\n - foo thing then yq w sample.yaml b.d[+] \"bar thing\" will output: b:\n c: cat\n d:\n - new thing\n - foo thing\n - bar thing",
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"text": "Given a sample.yaml file of: b:\n c: 2\n d:\n - new thing\n - foo thing then yq w sample.yaml \"b.d[+]\" \"bar thing\" will output: b:\n c: cat\n d:\n - new thing\n - foo thing\n - bar thing Note that the path is in quotes to avoid the square brackets being interpreted by your shell.",
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"title": "Appending value to an array field"
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},
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{
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@ -97,12 +97,12 @@
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},
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{
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"location": "/write/#keys-with-dots",
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"text": "When specifying a key that has a dot use key lookup indicator. b:\n foo.bar: 7 yaml r sample.yaml b[foo.bar] yaml w sample.yaml b[foo.bar] 9 Any valid yaml key can be specified as part of a key lookup.",
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"text": "When specifying a key that has a dot use key lookup indicator. b:\n foo.bar: 7 yaml r sample.yaml 'b[foo.bar]' yaml w sample.yaml 'b[foo.bar]' 9 Any valid yaml key can be specified as part of a key lookup. Note that the path is in quotes to avoid the square brackets being interpreted by your shell.",
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"title": "Keys with dots"
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},
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{
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"location": "/create/",
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"text": "Yaml files can be created using the 'new' command. This works in the same way as the write command, but you don't pass in an existing Yaml file.\n\n\nyq n <path> <new value>\n\n\n\n\nCreating a simple yaml file\n\u00b6\n\n\nyq n b.c cat\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n\n\n\n\nCreating using a create script\n\u00b6\n\n\nCreate scripts follow the same format as the update scripts.\n\n\nGiven a script create_instructions.yaml of:\n\n\nb.c: 3\nb.e[0].name: Howdy Partner\n\n\n\n\nthen\n\n\nyq n -s create_instructions.yaml\n\n\n\n\nwill output:\n\n\nb:\n c: 3\n e:\n - name: Howdy Partner\n\n\n\n\nYou can also pipe the instructions in:\n\n\ncat create_instructions.yaml | yq n -s -\n\n\n\n\nKeys with dots\n\u00b6\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n foo.bar: 7\n\n\n\n\nyaml r sample.yaml b[foo.bar]\n\n\n\n\nyaml w sample.yaml b[foo.bar] 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.",
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"text": "Yaml files can be created using the 'new' command. This works in the same way as the write command, but you don't pass in an existing Yaml file.\n\n\nyq n <path> <new value>\n\n\n\n\nCreating a simple yaml file\n\u00b6\n\n\nyq n b.c cat\n\n\n\n\nwill output:\n\n\nb:\n c: cat\n\n\n\n\nCreating using a create script\n\u00b6\n\n\nCreate scripts follow the same format as the update scripts.\n\n\nGiven a script create_instructions.yaml of:\n\n\nb.c: 3\nb.e[0].name: Howdy Partner\n\n\n\n\nthen\n\n\nyq n -s create_instructions.yaml\n\n\n\n\nwill output:\n\n\nb:\n c: 3\n e:\n - name: Howdy Partner\n\n\n\n\nYou can also pipe the instructions in:\n\n\ncat create_instructions.yaml | yq n -s -\n\n\n\n\nKeys with dots\n\u00b6\n\n\nWhen specifying a key that has a dot use key lookup indicator.\n\n\nb:\n foo.bar: 7\n\n\n\n\nyaml r sample.yaml 'b[foo.bar]'\n\n\n\n\nyaml w sample.yaml 'b[foo.bar]' 9\n\n\n\n\nAny valid yaml key can be specified as part of a key lookup.\n\n\nNote that the path is in quotes to avoid the square brackets being interpreted by your shell.",
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"title": "Create"
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},
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{
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@ -117,7 +117,7 @@
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},
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{
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"location": "/create/#keys-with-dots",
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"text": "When specifying a key that has a dot use key lookup indicator. b:\n foo.bar: 7 yaml r sample.yaml b[foo.bar] yaml w sample.yaml b[foo.bar] 9 Any valid yaml key can be specified as part of a key lookup.",
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"text": "When specifying a key that has a dot use key lookup indicator. b:\n foo.bar: 7 yaml r sample.yaml 'b[foo.bar]' yaml w sample.yaml 'b[foo.bar]' 9 Any valid yaml key can be specified as part of a key lookup. Note that the path is in quotes to avoid the square brackets being interpreted by your shell.",
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"title": "Keys with dots"
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},
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{
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