Unix File operations

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Unix File operations
# 1  
Old 02-07-2008
Unix File operations


Iam having the two files as follows:



ASQWEDFR09876543121234516 asdcvfgbtg@abc.com 0000000-90-1239--2008 8990----
CXADFGTU09876543121234789 asdcvfgbtg@abc.com 0000000-90-1239--2008 8990----
KLOPIUYRE09876541234234516 asdcvfgbtg@abc.com 0000000-90-1239--2008 8990----
ZXSDCVFG09876512345634516 asdcvfgbtg@abc.com 0000000-90-1239--2008 8990----

i WANT TO update the contents in file1 to file2 and remove the other lines.


ASQWEDFR09876543121234516 asdcvfgbtg@abc.com 0000000-90-1239--2008 8990----
POIUYTREW0987651234567678 asdcvfgbtg@abc.com 0000000-90-1239--2008 8990----
ZXCVBNMKS1209888888888888 asdcvfgbtg@abc.com 0000000-90-1239--2008 8990----
# 2  
Old 02-07-2008
paste file_update file_to_be_updated | awk ' { print $1" " $3" "$4}' > final
cat final > file_to_be_updated
# 3  
Old 02-07-2008
grep -f file1 file2 > out.txt
# 4  
Old 02-08-2008
Unix File operations


Thanks for your reply. It is working fine, but iam having the file 2 as follows:

file 2
QWERTYUI098765432112345  abc@soft.com                                                                            2007-09-260012275.80 0000924 00245.00 2007-10-25ASDFRESS,POIU                                                 S                                000000000000015.52 000000000000000.00 CBB00010000000906

file 1

While iam pasting from unix box to here, the contents are not in one single line.

The above info in file1 is all in a single line.

Now i want to take the lines one by one in file1 and find if there is matching record in file 2 and if it finds it should replace and most important is it should not disturb the other info in the particular line.( Previous paste command is working but it is disturbing the spaces and it is removing those spaces in file 2.

Please give me the solution.

Thanks in advance.

Last edited by vgersh99; 02-08-2008 at 05:32 AM.. Reason: vB Codes
# 5  
Old 02-08-2008
Unix File operations

Here also in file 2 , there is 40 spaces in between the email id and the next number. while copying it is not correctly pasted.

# 6  
Old 02-08-2008
Originally Posted by nivas
Here also in file 2 , there is 40 spaces in between the email id and the next number. while copying it is not correctly pasted.

use vB Codes when posting code or data samples.
# 7  
Old 02-08-2008
Unix File operations

how to use this vb codes??
Login or Register to Ask a Question

Previous Thread | Next Thread

8 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

To skip operations in UNIX shell

hi i am having a acript for which i need to skip the execution of some lines and to continue with remaining lines for eg script.sh rm text for i in * do . . . . . if then rm i want to skip the execution of the lines and to start with (11 Replies)
Discussion started by: rohit_shinez
11 Replies

2. Shell Programming and Scripting

How to search and append words in the same file using unix scripting file operations

Hi , I have a file myhost.txt which contains below, localhost atrpx958 atrpx958zone nsybhost I need to append words only after "atrpx958" like 'myhost' and 'libhost' and not after atrpx958zone. How to search the word atrpx958(which is hostname) only,... (5 Replies)
Discussion started by: gsreeni
5 Replies

3. IP Networking

What is the best Unix-like for firewalling operations

Hello from France, I'd like to have your opinion on this : What unix-like would you choose for high bandwidth netwoking operations like a cluster of statefull firewalls ? NetBSD, Linux, others ? Thank you. Best regards. Vincent. (0 Replies)
Discussion started by: vrzs
0 Replies

4. Shell Programming and Scripting

Date operations in Unix?

Hi Friends, I need help in below requirements, 1. I have to get current datetime + <mins> into a variable 2. I have to compage dates like, A=01-JAN-2009 10:20:10 B=01-JAN-2009 10:30:00 C=<same format date as above> I have to find whether, 1. C is less than A OR, 2. C is greater... (7 Replies)
Discussion started by: smr_rashmy
7 Replies

5. Shell Programming and Scripting

Unix file operations(shell script)

Hi, I want to compare two files. Files will look like as follows: file1: ASDFGHJU|1234567890123456 QWERTYUI|3456789098900890 file2: ZXCVBVNM|0987654321234567 POLKIJUYH|1234789060985478 output file should be: ASDFGHJU|1234567890123456 QWERTYUI|3456789098900890 Thnaks in advance (6 Replies)
Discussion started by: nivas
6 Replies

6. UNIX for Dummies Questions & Answers

File operations

Hi I have a tab delimited file with 3 fields. I need to sort this file on the first field and remove all the records where the first field has dulplicates. For eg my file is 133|arrfdfdg|sdfdsg 234|asfsdgfs|aasdfs 133|affbfsde|dgfg When this file gets sorted I need the result to be ... (2 Replies)
Discussion started by: monks
2 Replies

7. UNIX Desktop Questions & Answers

where i can find list of UNIX commands for daily operations ?

Hi There, Can anyone help, where i can find list of UNIX commands just for regulat day ro day operations Thanx MGR (1 Reply)
Discussion started by: mgoutham
1 Replies

8. UNIX for Dummies Questions & Answers

mathematics operations in unix

Hello guys! Can say me anybody about operatios with unix, I don't to make operations, only inside in a variable, like this #y=4 #x=2 #let z=$y-$x #echo $z # 2 but I can't to make mathematical operations with decimal like this #y=3.2 #x=1.5 #let z=$y-$x #echo $z # 3 this... (2 Replies)
Discussion started by: cesar720213
2 Replies
Login or Register to Ask a Question