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Top Forums Shell Programming and Scripting sed - remove begin of line up to the third and including occurence of character Post 302939331 by durden_tyler on Tuesday 24th of March 2015 05:53:38 PM
Old 03-24-2015
With GNU sed:

Code:
$
$ chr="X"
$ str="one X two X three X four X five X six X over"
$
$ echo $str
one X two X three X four X five X six X over
$ echo $str | sed -r "s/$chr([^$chr]+$chr){2}//"
one  four X five X six X over
$
$ # =============
$
$ chr="$"
$ str="one $ two $ three $ four $ five $ six $ over"
$
$ echo $str
one $ two $ three $ four $ five $ six $ over
$ echo $str | sed -r "s/\\$chr([^\\$chr]+\\$chr){2}//"
one  four $ five $ six $ over
$
$

 

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TCATEST(1)							   Tokyo Cabinet							TCATEST(1)

NAME
tcamgr - the command line utility of the abstract database API DESCRIPTION
The command `tcamgr' is a utility for test and debugging of the abstract database API and its applications. `name' specifies the name of a database. `key' specifies the key of a record. `value' specifies the value of a record. `params' specifies the tuning parameters. `func' specifies the name of a function. `arg' specifies the arguments of the function. `dest' specifies the path of the destination file. tcamgr create name Create a database file. tcamgr inform name Print miscellaneous information to the standard output. tcamgr put [-sx] [-sep chr] [-dk|-dc|-dai|-dad] name key value Store a record. tcamgr out [-sx] [-sep chr] name key Remove a record. tcamgr get [-sx] [-sep chr] [-px] [-pz] name key Print the value of a record. tcamgr list [-sep chr] [-m num] [-pv] [-px] [-fm str] name Print keys of all records, separated by line feeds. tcamgr optimize name params Optimize a database file. tcamgr misc [-sx] [-sep chr] [-px] name func [arg...] Call a versatile function for miscellaneous operations. tcamgr map [-fm str] name dest Map records into another B+ tree database. tcamgr version Print the version information of Tokyo Cabinet. Options feature the following. -sx : the input data is evaluated as a hexadecimal data string. -sep chr : specify the separator of the input data. -dk : use the function `tcadbputkeep' instead of `tcadbput'. -dc : use the function `tcadbputcat' instead of `tcadbput'. -dai : use the function `tcadbaddint' instead of `tcadbput'. -dad : use the function `tcadbadddouble' instead of `tcadbput'. -px : the output data is converted into a hexadecimal data string. -pz : do not append line feed at the end of the output. -m num : specify the maximum number of the output. -pv : print values of records also. -fm str : specify the prefix of keys. This command returns 0 on success, another on failure. SEE ALSO
tcatest(1), tcamttest(1), tcadb(3), tokyocabinet(3) Man Page 2011-02-12 TCATEST(1)
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