Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Adding new fields to an existing layout
Top Forums Shell Programming and Scripting Adding new fields to an existing layout Post 302361788 by Amit.Sagpariya on Wednesday 14th of October 2009 06:08:48 AM
Old 10-14-2009
Hi Manii,

a.txt is your existing file...

b.txt is file whith new data

Code:
cnt=`wc -l a.txt | awk '{print $1}'`
num=`expr $cnt - 1 | bc`
head -$num a.txt >> new.txt
cat b.txt >> new.txt
tail -1 a.txt >> new.txt

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Create a calculated field from existing fields

I need to add an average field to a file. I can create it in an on-screen report and it does what I need using the awk command but I can't get it to create a new file with the additional field. Here's what I'm working with: file layout: id:lastname:firstname:grade1:grade2:grade3:grade4 I... (1 Reply)
Discussion started by: atchleykl
1 Replies

2. Solaris

SMF - Adding instances to existing manifest

I have a default, sun supplied, apache2 install on solaris10. It's running fine, everything's great. I'm looking to add another instance, fairly happy with how to do that apart from one thing - the SMF manifest. Can i just edit the XML file sun supplied for the default apache2 and add in details... (2 Replies)
Discussion started by: craigp84
2 Replies

3. UNIX for Dummies Questions & Answers

Adding header to an existing file

Dear All, I need to add a header of one line to an already existing file. I know that it can be achieved by the following: echo "Header" > newfile cat file1 >> newfile But my problem is that file is huge and there is no space for creating a new file every time. Is there a way that I can... (5 Replies)
Discussion started by: shash
5 Replies

4. Linux

Adding space to existing mount

I am on Red Hat Linux 4.7. I am getting this error message: Preparing... ########################################### You have insufficient diskspace in the destination directory (/usr/lib) to install xxxxxxxxxxxxx. The installation requires at least 1.5 GB free on this... (2 Replies)
Discussion started by: jxh461
2 Replies

5. Shell Programming and Scripting

Adding file to an existing tar

Hi Friends, I want to know the command to add a new file in a existing tar file. For Ex: I have a tar file file1.tar with the contents one.txt two.txt three.txt Now I need to add file four.txt to this existing tar file, how can I do it? Thanks in advance (4 Replies)
Discussion started by: mr_manii
4 Replies

6. Web Development

Adding a Web Calendar to an existing Groupware

Hi All, I have an existing groupware consisting of postfix,dovecot,openldap and webmail(RoundCube). But It lacks a shared calendar. Can someone advise how can I implement a calendar in my groupware ? Thanks. (1 Reply)
Discussion started by: coolatt
1 Replies

7. Shell Programming and Scripting

Adding New Selections to the existing Script

Hi.... i have two scripts called: "type" & "selecttype". In "type" i have only the name of the products ex.: product1 & product2. Now, i have to ADD product3 which includes sub categories: productA, productB, productC, productD, productE, productF. so my New type script (menu) looks as... (1 Reply)
Discussion started by: Netrock
1 Replies

8. Shell Programming and Scripting

Adding existing set of records in the same file

I have a file with 50,000 records in it, i have a requirement to use the same 50,000 records and add them 4 times to the same file to make a total of 200,000 records. I was wondering how to do this using ksh. Any help is greatly appreciated. (2 Replies)
Discussion started by: vpv0002
2 Replies

9. AIX

Adding existing VG to powerHA Resource group

Hello. I am Running AIX 6.1 and PowerHA 6.1 I have an active/active cluster (Prod/Dev) cluster. Each side will failover to the other. I have on my prod side an active volume group with a file system. The VG is imported on both nodes and active (varried on, file system mounted) on the prod... (3 Replies)
Discussion started by: mhenryj
3 Replies

10. Shell Programming and Scripting

Adding a new column to an existing one

I have a data file that looks like this: 0.01 1 3822 4.97379915032e-14 4.96982253992e-09 0 0.01 3822 1 4.97379915032e-14 4.96982253992e-09 0 0.01 2 502 0.00993165137406 993.165137406 0 0.01 502 2 0.00993165137406 993.165137406 0 0.01 4 33 0.00189645523539 189.645523539 0 0.01 33 4... (3 Replies)
Discussion started by: kayak
3 Replies

LEARN ABOUT DEBIAN

h5jam

h5jam(1)						      General Commands Manual							  h5jam(1)

NAME

       h5jam - Add a user block to a HDF5 file

SYNOPSIS

       h5jam -u user_block -i in_file.h5 [-o out_file.h5] [--clobber]

DESCRIPTION

       h5jam  concatenates  a  user_block  file  and an HDF5 file to create an HDF5 file with a user block. The user block can be either binary or
       text. The output file is padded so that the HDF5 header begins on byte 512, 1024, etc.. (See the HDF5 File Format.)

       If out_file.h5 is given, a new file is created with the user_block followed by the contents of in_file.h5.   In	this  case,  infile.h5	is
       unchanged.

       If out_file.h5 is not specified, the user_block is added to in_file.h5.

       If  in_file.h5  already	has  a	user  block,  the contents of user_block will be added to the end of the existing user block, and the file
       shifted to the next boundary. If --clobber is set, any existing user block will be overwritten.

EXAMPLE USAGE

       Create new file, newfile.h5, with the text in file mytext.txt as the user block for the HDF5 file file.h5.

	    h5jam -u mytext.txt -i file.h5 -o newfile.h5

       Add text in file mytext.txt to front of HDF5 dataset, file.h5.

	    h5jam -u mytext.txt -i file.h5

       Overwrite the user block (if any) in file.h5 with the contents of mytext.txt.

	    h5jam -u mytext.txt -i file.h5 --clobber

RETURN VALUE

       h5jam returns the size of the output file, or -1 if an error occurs.

CAVEATS

       This tool copies all the data (sequentially) in the file(s) to new offsets. For a large file, this copy will take a long time.

       The most efficient way to create a user block is to create the file with a user block (see H5Pset_user_block), and  write  the  user  block
       data into that space from a program.

       The  user block is completely opaque to the HDF5 library and to the h5jam and h5unjam tools.  The user block is simply read or written as a
       string of bytes, which could be text or any kind of binary data.  It is up to the user to know what the contents of the	user  block  means
       and how to process it.

       When the user block is extracted, all the data is written to the output, including any padding or unwritten data.

       This tool moves the HDF5 file through byte copies, i.e., it does not read or interpret the HDF5 objects.

SEE ALSO

       h5dump(1), h5ls(1), h5diff(1), h5import(1), gif2h5(1), h52gif(1), h5perf(1), h5unjam(1).

																	  h5jam(1)
All times are GMT -4. The time now is 08:40 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy