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UNIX for Dummies Questions & Answers
Filename Manipulation in AWK
Post 302321853 by thanhdat on Tuesday 2nd of June 2009 08:39:49 AM
06-02-2009
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Hi ,
what a wonderful command but so hard to maintain !
i have a file like that :
03/07/2006 05:58:45
03/07/2006 06:58:45
03/07/2006 07:58:50
03/07/2006 08:58:50
and i want to read it and keep only the lines with 3rd field less than 07:00:00
writing it in a second file !
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OK, so if $0 represent the entire record... can I change $2 and will that be reflected back in $0?
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Dear all,
I need to manipulate some filenames (dump.1, dump.2, etc.) and feed them to another command. For this purpose I am using sed and because my last COMMAND needs to receive files one-by-one I am using xargs:
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Hello,
I am having issues generating the output file below from this input file:
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Hi all,
I need to convert some files with the following name format:
<Base File Name>_YYYYMMDD_HHMISS_NNNNN.*
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NNNNNN_<Base File Name>_YYYYMMDD_HHMISS.*
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MY_FILE_NAME_20120912_123443_12345.data
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Hallo Family,
I have csv file which has over a million records in it. All i want to do is to change field 2 to have the same value as field 10.
sample file:Now
0860093239,Anonymous,unconditional,+27381230283,Anonymous,unconditional,y,public,,2965511477:0A
Desired output:
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hello
I have example file
AA 11
BB 22
CC 33
And what I expect to have
-a AA=11 -a BB=22 -a CC=33
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a1
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Hello all,
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LEARN ABOUT HPUX
ftpconversions
ftpconversions(4) Kernel Interfaces Manual ftpconversions(4) NAME
ftpconversions - ftpd conversions database SYNOPSIS
DESCRIPTION
The conversions known by and their attributes are stored in an ASCII file that is structured as below. Each line in the file provides a description for a single conversion. Fields are separated by colons (:). Field Description 1 strip prefix 2 strip postfix 3 addon prefix 4 addon postfix 5 external command 6 types 7 options 8 description strip postfix and addon postfix can be the file extensions or or or The file extensions the ftp server supports and the action that the ftp server performs is summarized in the table below. This feature is supported only when using the command. | | True Filename | Specified Filename | Action --------------+--------------------+--------------------------------------- filename.Z | filename | Decompress file before transmitting filename | filename.Z | Compress filename before transmitting filename | filename.tar | Tar filename before transmitting filename | filename.tar.Z | Tar and compress filename | | before transmitting external command field is used to specify the path of the program/script to be used to perform the action specified for the different file extensions as described in the above table. types field indicates the flags that must be checked before compressing, decompressing, tarring and untarring the file requested by the command. options field specifies the options for the program/script specified in the external command field. description is a short description of each conversion. NOTE: The HP-UX command does not support any option to do or If the user wants to perform any such action, he/she must then write his/her own program/script to do it and specify the pathname of the program/script in the external command field in the file. Also a copy of the programs/scripts used to perform the conversions and the respective libraries used by the programs/scripts must be copied into the home directory of each of the and user accounts for the and users to be able to perform on-the-fly conversions. WARNINGS
The conversions mechanism does not currently support the strip prefix and addon prefix fields. FILES
AUTHOR
was developed by the Washington University, St. Louis, Missouri. SEE ALSO
ftpd(1M), ftpaccess(4). ftpconversions(4)