Remove first meta key from json records using shell


 
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Old 01-18-2019
I'm the same opinion as Andrew(apmd47). jq is the greatest command line tool for JSON-parsing and manipulation I know. It has a ton of possibilites to mangle / extract json data in this very small binary(<30K). It's written in portable c, with no runtime dependencies. See: jq

Last edited by stomp; 01-18-2019 at 06:22 AM..
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targetctl(8)						      System Manager's Manual						      targetctl(8)

NAME
targetctl - Save and restore configuration of kernel target DESCRIPTION
targetctl is a low-level script to save and restore the configuration of the LIO kernel target, to and from a file in json format. It is not normally meant to be used by end-users directly, but by system init frameworks, or advanced end-users who are generating the configura- tion file themselves and need a way to load the configuration without relying on the targetcli configuration shell. USAGE
targetctl must be invoked as root. Exit status will be 0 if successful, or nonzero if an error was encountered. targetctl save [config-file] Saves the current configuration of the kernel target to a file in json format. Since the file may contain cleartext passwords, the file's permissions will be set to only allow root access. If config-file is not supplied, targetctl will use the default file location, /etc/tar- get/saveconfig.json. targetctl restore [config-file] Removes any existing configuration and replaces it with the configuration described in the file. See saveconfig.json(5) for more details. If parts of the configuration could not be restored, those parts will be noted in the error output, and the rest of the configuration will still be applied. targetctl clear Removes any existing configuration from the running kernel target. targetctl --help Displays usage information. SEE ALSO
targetcli(8), targetd(8), saveconfig.json(5) FILES
/etc/target/saveconfig.json /sys/kernel/config/target AUTHOR
Written by Andy Grover <agrover@redhat.com>. Man page written by Andy Grover <agrover@redhat.com>. REPORTING BUGS
Report bugs via <targetcli-fb-devel@lists.fedorahosted.org> or <https://github.com/agrover/rtslib-fb/issues> targetctl(8)