file update


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting file update
# 1  
Old 08-11-2005
Question file update

how to update file in unix ?
# 2  
Old 08-11-2005
Edit it.

Add your contents and save. (?) is one way of doing it.
# 3  
Old 08-11-2005
Bug update ??

You want to update a file means what you exactly want.

Do you want to change the timestamp of the file or contents from the file ?
if contents then obviously us vi editor and make changes.
if you want to change timestamp then use touch command.
check man touch for the same.
# 4  
Old 08-12-2005
Error

i want to change the content of file .
i know vi editor but which command is for update file.
# 5  
Old 08-12-2005
i want to update my content in file.
like account holder deposite may be increase or discrease what i do?
# 6  
Old 08-12-2005
Quote:
Originally Posted by piyush_movadiya
i want to update my content in file.
like account holder deposite may be increase or discrease what i do?
Sorry, but your question still seems a little open ended. Lets start with identifiying some of the details of your problem:

1) Is your file a binary file, or ASCII file?
2) What identifies a particular account or entry? e.g. account number
3) What is the record structure for an account or entry?

In general terms you may want to consider using the sed or awk command. Read the contents of your file from standard input. The sed or awk commands will allow you to subsitute some of the input stream as you send it to standard output.
# 7  
Old 08-12-2005
Why don't you give us a bit of background...on your job and what you are trying to do...

It would help greatly to understand where you are coming from.




To edit a file simply open it with vi... then edit it and :wq! to save it thereby updating it.
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

awk to update file with partial matching line in another file and append text

In the awk below I am trying to cp and paste each matching line in f2 to $3 in f1 if $2 of f1 is in the line in f2 somewhere. There will always be a match (usually more then 1) and my actual data is much larger (several hundreds of lines) in both f1 and f2. When the line in f2 is pasted to $3 in... (4 Replies)
Discussion started by: cmccabe
4 Replies

2. Shell Programming and Scripting

Move file from one directory and update the list file once moved.

Dears, I have a listfile contains list of files path. i need to read the line of the listfile mv the file to other directory and update the listfile by deleting the lines of the listfile. #!/bin/bash target=/fstest/INVESTIG/Sadiq/TEST_ARCH while read -r line || ]; do mv $line... (19 Replies)
Discussion started by: sadique.manzar
19 Replies

3. Shell Programming and Scripting

awk to update file with sum of matching fields in another file

In the awk below I am trying to add a penalty to a score to each matching $1 in file2 based on the sum of $3+$4 (variable TL) from file1. Then the $4 value in file1 is divided by TL and multiplied by 100 (this valvue is variable S). Finally, $2 in file2 - S gives the updated $2 result in file2.... (2 Replies)
Discussion started by: cmccabe
2 Replies

4. Shell Programming and Scripting

Perl to update field in file based of match to another file

In the perl below I am trying to set/update the value of $14 (last field) in file2, using the matching NM_ in $12 or $9 in file2 with the NM_ in $2 of file1. The lengths of $9 and $12 can be variable but what is consistent is the start pattern will always be NM_ and the end pattern is always ;... (4 Replies)
Discussion started by: cmccabe
4 Replies

5. Shell Programming and Scripting

Update file

Gents Please can you help. file1 43067.00 49301.00 314999999 43067.00 49157.00 313888888 43065.00 49157.00 313777777 43063.00 ... (5 Replies)
Discussion started by: jiam912
5 Replies

6. Programming

MYSQL - trigger update on record insert or update

Right I have a MYSQL database with table1 with 3 columns, colA, colB and colC. I want to combine the data in the 3 columns into a 4th column names col_comb. Here's the SQL command that works: UPDATE table1 SET `col_comb` = CONCAT( `colA` , ' - ', `colB` , ', ', `colC` ); So now I want this... (5 Replies)
Discussion started by: barrydocks
5 Replies

7. Shell Programming and Scripting

rsync - update file on backup when file renamed on source

hi all, Please help me with rsync. I configured rsync to preserve timestamps using the -a option. When i renamed fileA to fileB on source machine I have to copies at the backup server. The aim is to keep the most recent file. fileA & fileB has same contents. When i renamed fileB to... (2 Replies)
Discussion started by: coolatt
2 Replies

8. Shell Programming and Scripting

how to update a file

-Hi, I have several hundred files, which contain the following pattern: /bb/bin/msga/mm 80& I need to change the above pattern to be /bb/bin/mm 80& I there the command I can use to do that. Thanks a lot (3 Replies)
Discussion started by: aoussenko
3 Replies

9. Shell Programming and Scripting

update a file with values from other file in shell bash

Hello I need to write a shell script to update properties between files. I have 2 files as follow: file1 urlWebserviceCheckAddress^=McoConfigGlobal.commonGLOBALUrlWebservice file 2 urlWebserviceCheckAddress=http://localhost:8080/tags Both files containt the same properties... (1 Reply)
Discussion started by: teodora
1 Replies
Login or Register to Ask a Question