Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Length

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Length
# 1  
Old 03-01-2019
Length
friends how can i know the length of a record of a file with a shell

Moderator's Comments:
Mod Comment Please DO NOT do double posting of same contents. Update your questions only for adding/editing details not for adding same king of information again.
Last edited by RavinderSingh13; 03-01-2019 at 02:25 PM..
# 2  
Old 03-01-2019
Depends what 'record' means. You have to know what your data is before you can deal with it.
This User Gave Thanks to Corona688 For This Post:
tricampeon81
# 3  
Old 03-02-2019
one of the most progressive inventions by our genius Ken Thompson was, that *NIX regards files as simple byte streams, whereas fixed sized records are a anachronistic relic of mainframes. *NIX "records" always are delimited by a special character.
# 4  
Old 03-04-2019
Quote:
...fixed sized records are a anachronistic relic of mainframes. *NIX "records" always are delimited by a special character.
They are not, actually. You can have whatever kind of file you want in UNIX! Binary, ASCII, variable sized records, fixed sized records, delimited or not. If you can imagine it, you can probably make it work.

Which is why you have to know what your data is before you can deal with it.
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Convert variable length record to fixed length

Hi Team, I have an issue to split the file which is having special chracter(German Char) using awk command. I have a different length records in a file. I am separating the files based on the length using awk command. The command is working fine if the record is not having any... (7 Replies)
Discussion started by: Anthuvan
7 Replies

2. Shell Programming and Scripting

Array Length Reports as Having Length when it is Empty?

Hello All, I have this script that does stuff like "starting, stopping & restarting" a Daemon Process running on my machine... My main question is why in part of my code (which you will see below) does the Array Length (i.e. ${#PIDS} ) return "1" when I know the Array is empty..? Here is... (17 Replies)
Discussion started by: mrm5102
17 Replies

3. Shell Programming and Scripting

Flat file-make field length equal to header length

Hello Everyone, I am stuck with one issue while working on abstract flat file which i have to use as input and load data to table. Input Data- ------ ------------------------ ---- ----------------- WFI001 Xxxxxx Control Work Item A Number of Records ------ ------------------------... (5 Replies)
Discussion started by: sonali.s.more
5 Replies

4. Shell Programming and Scripting

changing a variable length text to a fixed length

Hi, Can anyone help with a effective solution ? I need to change a variable length text field (between 1 - 18 characters) to a fixed length text of 18 characters with the unused portion, at the end, filled with spaces. The text field is actually field 10 of a .csv file however I could cut... (7 Replies)
Discussion started by: dc18
7 Replies

5. Shell Programming and Scripting

Make variable length record a fixed length

Very, very new to unix scripting and have a unique situation. I have a file of records that contain 3 records types: (H)eader Records (D)etail Records (T)railer Records The Detail records are 82 bytes in length which is perfect. The Header and Trailer records sometimes are 82 bytes in... (3 Replies)
Discussion started by: jclanc8
3 Replies

6. UNIX for Dummies Questions & Answers

What the command to find out the record length of a fixed length file?

I want to find out the record length of a fixed length file? I forgot the command. Any body know? (9 Replies)
Discussion started by: tranq01
9 Replies

7. UNIX for Dummies Questions & Answers

Length of a Unix filepath max length

Hi Guys, Could anyone shed some light on the length of a Unix filepath max length pls ? thanks ! Wilson (3 Replies)
Discussion started by: wilsontan
3 Replies

8. UNIX for Dummies Questions & Answers

Sed working on lines of small length and not large length

Hi , I have a peculiar case, where my sed command is working on a file which contains lines of small length. sed "s/XYZ:1/XYZ:3/g" abc.txt > xyz.txt when abc.txt contains lines of small length(currently around 80 chars) , this sed command is working fine. when abc.txt contains lines of... (3 Replies)
Discussion started by: thanuman
3 Replies

9. Shell Programming and Scripting

creating a fixed length output from a variable length input

Is there a command that sets a variable length? I have a input of a variable length field but my output for that field needs to be set to 32 char. Is there such a command? I am on a sun box running ksh Thanks (2 Replies)
Discussion started by: r1500
2 Replies
Login or Register to Ask a Question