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Shell Programming and Scripting
How to replace a string containing @ in a file using sed ?
Post 302593074 by Corona688 on Wednesday 25th of January 2012 02:27:17 PM
01-25-2012
The @ didn't need escaping but the dots did. 
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LEARN ABOUT MOJAVE
userselector
UserSelector(7) BSD Miscellaneous Information Manual UserSelector(7) NAME
UserSelector -- overview and documentation DESCRIPTION
UserSelector is invoked only internally by the CryptoTokenKit framework. It is not intended to be used directly by an end user or an adminis- trator. Unless the string property UserSelectorPath is set with full executable path value in the configuration file ( /etc/SmartcardLogin.plist ), the system UserSelector is used. How CryptoTokenKit framework invokes UserSelector: UserSelector -o operation -u username -i pubkeyhash1[,pubkeyhash2,...] Path and format UserSelector runs in a sandbox which limits its path and file format. A custom UserSelector must be stored in the /Library/CryptoTokenKit directory. The file format of the UserSelector must be binary. Shell scripts are not supported. Supported Operations Map Operation This operation returns a list of users bound with pubkeyhashes from the SmartCard certificates. The username parameter is optional. If set, bindings are returned only for the specified user. The list of one or more comma separated pubkeyhashes is mandatory. Result format: Recognized bindings are returned through stdout. Each binding is placed on a separate line. Each line begins with the pubkeyhash string, fol- lowed by the TAB character ( ) and by the username. Sample: $ UserSelector -o map -i 01234567890123456789,ABCDEF01230123456789,98765432109876543210 ABCDEF01230123456789 user1 98765432109876543210 user2 Bind Operation This operation creates binding between the provided pubkeyhash and username . Result format: Exit code is set to 0 when succeeded, error code otherwise Sample: $ UserSelector -o bind -i ABCDEF01230123456789 -u username1 Unbind Operation This operation removes SmartCard bindings for the provided username If no pubkeyhash is provided, all bindings for that user are removed. If one or more pubkeyhashes are provided, only bindings for these are removed. Result format: Exit code is set to 0 when succeeded, error code otherwise Sample: $ UserSelector -o unbind -u username1 -i ABCDEF01230123456789 Check Operation This operation checks SmartCard bindings for a specific user. It returns 0 on stdout when the user has no SmartCard bindings, or 1 when already does. The username parameter is mandatory. Sample: $ UserSelector -o check -u username1 1 SEE ALSO
SmartCardServices(7), sc_auth(8) macOS Oct 12, 2017 macOS