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UNIX for Dummies Questions & Answers
Delete a single record from a file
Post 302254789 by jim mcnamara on Wednesday 5th of November 2008 06:56:41 AM
11-05-2008
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Hi All,
I'm a newbie here, I'm just wondering on how to delete a single record in a large file in unix.
ex.
file1.txt is 1000 records
nikki1
nikki2
nikki3
what i want to do is delete the nikki2 record in file1.txt. is it possible?
Please advise,
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<record>
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Sample file record :
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LEARN ABOUT CENTOS
tdbtool
TDBTOOL(8) System Administration tools TDBTOOL(8) NAME
tdbtool - manipulate the contents TDB files SYNOPSIS
tdbtool tdbtool TDBFILE [COMMANDS...] DESCRIPTION
This tool is part of the samba(1) suite. tdbtool a tool for displaying and altering the contents of Samba TDB (Trivial DataBase) files. Each of the commands listed below can be entered interactively or provided on the command line. COMMANDS
create TDBFILE Create a new database named TDBFILE. open TDBFILE Open an existing database named TDBFILE. erase Erase the current database. dump Dump the current database as strings. cdump Dump the current database as connection records. keys Dump the current database keys as strings. hexkeys Dump the current database keys as hex values. info Print summary information about the current database. insert KEY DATA Insert a record into the current database. move KEY TDBFILE Move a record from the current database into TDBFILE. store KEY DATA Store (replace) a record in the current database. show KEY Show a record by key. delete KEY Delete a record by key. list Print the current database hash table and free list. free Print the current database and free list. ! COMMAND Execute the given system command. first Print the first record in the current database. next Print the next record in the current database. check Check the integrity of the current database. quit Exit tdbtool. CAVEATS
The contents of the Samba TDB files are private to the implementation and should not be altered with tdbtool. VERSION
This man page is correct for version 3.0.25 of the Samba suite. AUTHOR
The original Samba software and related utilities were created by Andrew Tridgell. Samba is now developed by the Samba Team as an Open Source project similar to the way the Linux kernel is developed. Samba 4.0 06/10/2014 TDBTOOL(8)