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add exit code with --meta-out to readme

This commit is contained in:
Kelly Brazil
2022-08-24 09:07:34 -07:00
parent 51eb2c9fa8
commit 9699a184d1
2 changed files with 78 additions and 2 deletions

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@ -292,7 +292,9 @@ option.
### Exit Codes
Any fatal errors within `jc` will generate an exit code of `100`, otherwise the
exit code will be `0`. When using the "magic" syntax (e.g. `jc ifconfig eth0`),
exit code will be `0`.
When using the "magic" syntax (e.g. `jc ifconfig eth0`),
`jc` will store the exit code of the program being parsed and add it to the `jc`
exit code. This way it is easier to determine if an error was from the parsed
program or `jc`.
@ -306,6 +308,42 @@ Consider the following examples using `ifconfig`:
| `0` | `100` | `100` | Error in `jc` |
| `1` | `100` | `101` | Error in both `ifconfig` and `jc` |
When using the "magic" syntax you can also retrieve the exit code of the called
program by using the `--meta-out` or `-M` option. This will append a `_jc_meta`
object to the output that will include the magic command information, including
the exit code.
Here is an example with `ping`:
```json
$ jc --meta-out -p ping -c2 192.168.1.252
{
"destination_ip": "192.168.1.252",
"data_bytes": 56,
"pattern": null,
"destination": "192.168.1.252",
"packets_transmitted": 2,
"packets_received": 0,
"packet_loss_percent": 100.0,
"duplicates": 0,
"responses": [
{
"type": "timeout",
"icmp_seq": 0,
"duplicate": false
}
],
"_jc_meta": {
"parser": "ping",
"timestamp": 1661357115.27949,
"magic_command": [
"ping",
"-c2",
"192.168.1.252"
],
"magic_command_exit": 2
}
}
```
### Setting Custom Colors via Environment Variable
You can specify custom colors via the `JC_COLORS` environment variable. The

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@ -173,7 +173,9 @@ option.
### Exit Codes
Any fatal errors within `jc` will generate an exit code of `100`, otherwise the
exit code will be `0`. When using the "magic" syntax (e.g. `jc ifconfig eth0`),
exit code will be `0`.
When using the "magic" syntax (e.g. `jc ifconfig eth0`),
`jc` will store the exit code of the program being parsed and add it to the `jc`
exit code. This way it is easier to determine if an error was from the parsed
program or `jc`.
@ -187,6 +189,42 @@ Consider the following examples using `ifconfig`:
| `0` | `100` | `100` | Error in `jc` |
| `1` | `100` | `101` | Error in both `ifconfig` and `jc` |
When using the "magic" syntax you can also retrieve the exit code of the called
program by using the `--meta-out` or `-M` option. This will append a `_jc_meta`
object to the output that will include the magic command information, including
the exit code.
Here is an example with `ping`:
```json
$ jc --meta-out -p ping -c2 192.168.1.252
{
"destination_ip": "192.168.1.252",
"data_bytes": 56,
"pattern": null,
"destination": "192.168.1.252",
"packets_transmitted": 2,
"packets_received": 0,
"packet_loss_percent": 100.0,
"duplicates": 0,
"responses": [
{
"type": "timeout",
"icmp_seq": 0,
"duplicate": false
}
],
"_jc_meta": {
"parser": "ping",
"timestamp": 1661357115.27949,
"magic_command": [
"ping",
"-c2",
"192.168.1.252"
],
"magic_command_exit": 2
}
}
```
### Setting Custom Colors via Environment Variable
You can specify custom colors via the `JC_COLORS` environment variable. The