Visit Our UNIX and Linux User Community


Maximum size of sed file...


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Maximum size of sed file...
# 15  
Old 03-25-2002
The sed command will perform the substitution against the whole file - and it needs to as I don't know which line the substitution appears on - and the substituition will appear on a number of different lines.

The for loop against the large sed file will take each line from the sed file - then run through the entire input file looking for substitutions - the output from this is the entire file again - with it's substituions made.

Therefore the for loop's output will indeed (as is) the entire file for each time it loops through. Appending is not so flash.

The only way to use your for loop - is instead of appending the file, direct the output to temp - then mv it back to the original name... then the following line in the for loop would be applied to the file. This was effectively your original suggestion - which I negated due to it's processing inefficiency....

Great to get all the ideas though!Smilie
 

Previous Thread | Next Thread
Test Your Knowledge in Computers #925
Difficulty: Medium
The earliest versions of Unix time had a 32-bit integer incrementing at a rate of 60 Hz.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Maximum size of attachment in mail

Hi Friends, My requirment is to Query the oracle database , generate the file change the extension to .csv and send to clients automatically everyday. However i am able to perform the task. But sometimes when the file size is getting increased more than 1 MB then the mail is... (5 Replies)
Discussion started by: Showdown
5 Replies

2. Programming

Maximum buffer size for read()

Hi friends, Hope everybody is fine. First have a look at my code, then we will talk about it. $ cat copy.c #include <stdio.h> #define PERMS 0644 /* RW for owner, R for group, others */ #define BUFSIZE 1 char *progname; int main(int argc,char * argv) { int f1, f2, n; ... (4 Replies)
Discussion started by: gabam
4 Replies

3. UNIX for Advanced & Expert Users

How to identify maximum stack size?

Hi All, I have set max stack size as 4KB for my thread, but it always using very less. So I like to know what is the maximum stack size is used by my thread. I tried with gcc -fstack-usage command line option, but its not supported by mips. Kindly suggest me the way to find the max stack... (6 Replies)
Discussion started by: rajamohan
6 Replies

4. AIX

maximum size of a ramdisk on AIX 5.3

Hi, Do you know what is the maximum size I can use to create a ramdisk on AIX 5.3? I m pretty sure i've seen somewhere i can use more than 2 Gb but I can't remember where. I need to do some recommandations for one of my customer and they'll need to create a ramdisk of 20 Gb. Can this be done? ... (1 Reply)
Discussion started by: cedric hanquez
1 Replies

5. UNIX for Dummies Questions & Answers

Maximum file size ????

Hi All, - block size of 512KB & every address requires 4 bits - The inode structure contains 10 direct pointers, 1 single indirect, 1 double indirect & 1 triple indirect pointer What could be the possible maximum file size for this system Any guess? I am unable to understand the question... (0 Replies)
Discussion started by: preethgideon
0 Replies

6. UNIX for Dummies Questions & Answers

maximum tar file size?

Is there a reasonable maximum limit for tar file sizes? I want to transfer a pile of files from one server to another but have restricted means, so tarring them first will probably be best... but how big can I go - both for the file format itself and for the operating system (linux) to handle? ... (7 Replies)
Discussion started by: Bobby
7 Replies

7. UNIX for Dummies Questions & Answers

Maximum size of a file in unix

What's the maximum file size supported by unix. (3 Replies)
Discussion started by: nagalenoj
3 Replies

8. HP-UX

Mailx Maximum attachment size

Hi friends, what is the maximum allowable attachment size, we can send using mailx command. what is an alternate option if my file is > than that size? thanks sreeji (0 Replies)
Discussion started by: sreejithau
0 Replies

9. UNIX for Dummies Questions & Answers

Maximum input file size in "Diff" Command

Hello, Can anyone let me know what is the maximum file size that can be given as input for the "Diff" Command in Unix? I have a file size as large as 28MB and which can also increase. Will I face any issues with such a file size. If yes, What is the other alternative. Thanks in advance for... (1 Reply)
Discussion started by: Neeraja
1 Replies

10. Programming

Maximum File Size

Hi, When i checked for the maximum file size on solaris 5.9 the max file size obtained was only 2147483647 and all the further writes to the file which had reached that max size is not added to that file. even i had registered the signal SIGXFSZ, but the signal was not delivered to the... (5 Replies)
Discussion started by: matrixmadhan
5 Replies
NWBPSET(1)							      nwbpset								NWBPSET(1)

NAME
nwbpset - Create a bindery property or set its value SYNOPSIS
nwbpset [ -h ] [ -S server ] [ -U user name ] [ -P password | -n ] [ -C ] DESCRIPTION
nwbpset Reads a property specification from the standard input and creates and sets the corresponding property. The format is determined by the output of 'nwbpvalues -c'. nwbpset will hopefully become an important part of the bindery management suite of ncpfs, together with As another example, look at the following command line: nwbpvalues -t 1 -o supervisor -p user_defaults -c | sed '2s/.*/ME/'| sed '3s/.*/LOGIN_CONTROL/'| nwbpset With this command, the property user_defaults of the user object 'supervisor' is copied into the property login_control of the user object 'me'. nwbpvalues -t 1 -o me -p login_control -c | sed '9s/.*/ff/'| nwbpset This command disables the user object me. Feel free to contribute other examples! nwbpset looks up the file $HOME/.nwclient to find a file server, a user name and possibly a password. See nwclient(5) for more information. Please note that the access permissions of $HOME/.nwclient MUST be 600 for security reasons. OPTIONS
-h -h is used to print out a short help text. -S server server is the name of the server you want to use. -U user user is the user name to use for login. -P password password is the password to use for login. If neither -n nor -P are given, and the user has no open connection to the server, nwbpset prompts for a password. -n -n should be given if no password is required for the login. -C By default, passwords are converted to uppercase before they are sent to the server, because most servers require this. You can turn off this conversion by -C. AUTHORS
nwbpset was written by Volker Lendecke. See the Changes file of ncpfs for other contributors. nwbpset 8/7/1996 NWBPSET(1)

Featured Tech Videos