Backport of docs: Simplify example jq commands by removing pipes into release/1.16.x (#18334)

backport of commit 5d148141da

Co-authored-by: Blake Covarrubias <blake@covarrubi.as>

website/content/docs/connect/ca/consul.mdx

@@ -100,13 +100,13 @@ In order to use the Update CA Configuration HTTP endpoint, the private key and c
 must be passed via JSON:
 
 ```shell-session
-$ jq --null-input --arg key "$(cat root.key)" --arg cert "$(cat root.crt)" '
+$ jq --null-input --rawfile key root.key --rawfile cert root.crt '
 {
     "Provider": "consul",
     "Config": {
         "LeafCertTTL": "72h",
-        "PrivateKey": $key,
-        "RootCert": $cert,
+        "PrivateKey": $key | sub("\\n$"; ""),
+        "RootCert": $cert | sub("\\n$"; ""),
         "IntermediateCertTTL": "8760h"
     }
 }' > ca_config.json

website/content/docs/ecs/manual/secure-configuration.mdx

@@ -346,9 +346,9 @@ script to the container.
 
 # Obtain details from the task metadata
 ECS_TASK_META=$(curl -s $ECS_CONTAINER_METADATA_URI_V4/task)
-TASK_REGION=$(echo "$ECS_TASK_META" | jq -r .TaskARN | cut -d ':' -f 4)
-TASK_ID=$(echo "$ECS_TASK_META" | jq -r .TaskARN | cut -d '/' -f 3)
-CLUSTER_ARN=$(echo "$ECS_TASK_META" | jq -r .TaskARN | sed -E 's|:task/([^/]+).*|:cluster/\1|')
+TASK_REGION=$(echo "$ECS_TASK_META" | jq --raw-output '.TaskARN / ":" | .[3]')
+TASK_ID=$(echo "$ECS_TASK_META" | jq --raw-output '.TaskARN / "/" | .[2]')
+CLUSTER_ARN=$(echo "$ECS_TASK_META" | jq --raw-output '.TaskARN | sub(":task/(?<cluster>[^/]+).*"; ":cluster/\(.cluster)")')
 
 # Write the CA certs to a files in the shared volume
 echo "$CONSUL_CACERT_PEM" > /consul/consul-ca-cert.pem

website/content/docs/security/acl/auth-methods/oidc.mdx

@@ -202,7 +202,7 @@ be tricky to debug why things aren't working. Some tips for setting up OIDC:
   request to obtain a JWT that you can inspect. An example of how to decode the
   JWT (in this case located in the `access_token` field of a JSON response):
 
-      cat jwt.json | jq --raw-output .access_token | cut -d. -f2 | base64 --decode
+      jq --raw-output '.access_token / "." | .[1] | @base64d' jwt.json
 
 - The [`VerboseOIDCLogging`](#verboseoidclogging) option is available which
   will log the received OIDC token if debug level logging is enabled. This can

website/content/docs/troubleshoot/common-errors.mdx

@@ -44,7 +44,7 @@ There is a syntax error in your configuration file. If the error message doesn't
 ```shell-session
 $ consul agent -server -config-file server.json
 ==> Error parsing server.json: invalid character '`' looking for beginning of value
-$ cat server.json | jq .
+$ jq . server.json
 parse error: Invalid numeric literal at line 3, column 29
 ```