Sponsored Content
Top Forums Shell Programming and Scripting Howto add a constant column to the text file Post 302676705 by itkamaraj on Wednesday 25th of July 2012 04:26:14 AM
Old 07-25-2012
your file is in /a/b/c/d/f/abc.DBF


Code:
 
so pwd command gives the output as /a/b/c/d/f/abc.DBF

then you want to retrieve the folder name f.
 
-F\/ - field seperator is /
$(NF-1) - take the last before field

 

7 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to insert some constant text at beginig of each line within a text file.

Dear Folks :), I am new to UNIX scripting and I do not know how can I insert some text in the first column of a UNIX text file at command promtp. I can do this in vi editor by using this command :g/^/s//BBB_ e,g I have a file named as Test.dat and it containins below text: michal... (4 Replies)
Discussion started by: Muhammad Afzal
4 Replies

2. Shell Programming and Scripting

Add new column in Text File

I have one text file which is result of bdf command that have 6 fields separated by space and I want to add one new column in the beginning which is the name of the server because I have to insert whole thing into oracle table consisting of 7 fields THis is not a complete list but it looks... (9 Replies)
Discussion started by: pareshan
9 Replies

3. Shell Programming and Scripting

how I can add a constant to a field without changing the file format

Hi, I need to edit a file Protein Data Bank (pdb) and then open that file with the program VMD but when I edit the file with awk, it changes pdb format and the VMD program can not read it. I need to subtract 34 to field 6 ($ 6). this is a pdb file : ATOM 918 N GLY B 103 -11.855 8.675... (8 Replies)
Discussion started by: bio_
8 Replies

4. UNIX for Dummies Questions & Answers

how to add a constant value to a column in a file using unix command

I have a file like this 1 chr1 3661579 3662579 2 chr1 4350395 4351395 3 chr1 4399322 4400322 4 chr1 4486494 4487494 5 chr1 4775807 4776807 6 chr1 4775807 4776807 7 chr1 4775807 4776807 8 chr1 4796973 4797973 9 chr1 4846774 4847774... (3 Replies)
Discussion started by: sunsnow86
3 Replies

5. UNIX for Dummies Questions & Answers

Add a new column to a tab delimited text file

I want to add a new column to a tab delimited text file. It will be the first column and it will just be 1's. How do I go about doing that? Thanks! (1 Reply)
Discussion started by: evelibertine
1 Replies

6. Shell Programming and Scripting

Need to insert text(constant) at the beginning of file

I am very new to scripting and I know this request is simple but I am having no luck with it. I have a file a.dat with the following data in it. aa bb cc dd I need to run a script that will take each line of a.dat and put dsjc/ubin/ in front of each record, so the output looks like ... (2 Replies)
Discussion started by: jclanc8
2 Replies

7. UNIX for Dummies Questions & Answers

Add a column of 0's to a text file

Hi, I have a text file with many column (1,000,000+). I want to add a column of 0's as the third column. I tried: awk '{$3=0}1' input file > output file But it simply replaces the third column with 0's instead of adding a new column. How do I go about doing this? Thanks! (2 Replies)
Discussion started by: evelibertine
2 Replies
SHAPELIB(1)							   User Commands						       SHAPELIB(1)

NAME
dbfdump - dump xBase DBF files as text SYNOPSIS
dbfdump [-h] [-m] [-r] file DESCRIPTION
Dumps the contents of file to standard output. The first line contains the field names appearing in file, and each of the following lines contains the field values of a record. Field names and values are padded by spaces to their field widths. Empty fields are printed as the string "(NULL)". OPTIONS
-h Prints the column field definitions before other output. Each field definition consists of a line of the form Field: index, Type=type, Title=`name', Width=width, Decimals=precision where index is the zero offset column number of the field; the type indicates the datatype of the field value and is either "Inte- ger", "Real" or "String"; name is the field's name; width is the number of bytes reserved for the field's value; and precision is the number of decimal places of precision for "Real" type fields, and is zero for "Integer" and "String" type fields. -m Prints each record in multiline format separated by empty lines. The first line of a record gives the number of the record in the form Records: record_index where record_index is the zero offset number of the record in the file, and then each field of the record appears on its own line in the format name: value -r Prints the exact bytes occurring in file for field values and suppresses printing "(NULL)" for empty values. EXIT STATUS
0 Successful program execution. 1 Missing file argument. 2 Failed to open file. 3 There are no fields in file. DIAGNOSTICS
The following diagnostics may be issued on stdout: DBFOpen(file,"r") failed. There are no fields in this table! AUTHORS
Frank Warmerdam (warmerdam@pobox.com) is the maintainer of the shapelib shapefile library. Joonas Pihlaja (jpihlaja@cc.helsinki.fi) wrote this man page. BUGS
Unless the -r option is given, values in numeric fields that overflow the int or double types of the C language are printed as plus or minus a huge number. For integer fields the huge value is HUGE_VALL from <stdlib.h> and for real fields it is HUGE_VALF. SEE ALSO
dbf_dump(1), dbfcreate(1), dbfadd(1), shpadd(1), shpcreate(1), shpdump(1), shprewind(1) shapelib OCTOBER 2004 SHAPELIB(1)
All times are GMT -4. The time now is 08:56 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy