Sponsored Content
Top Forums Shell Programming and Scripting help need to find the length of a variable Post 302168310 by smr_rashmy on Monday 18th of February 2008 01:58:29 AM
Old 02-18-2008
help need to find the length of a variable

Hi frnds,

i have a file which contains multiple lines. each line size may come around 64MB. and i want to read line by line and nee to find the length of each line,

at present am doing it in the following way,

while read LINE
do
len=`expr length "$LINE"`
# and using the variable len for some purpose
done < file


the problem is, when the line size is big, i am getting error like parameter is too long.
is there any other way to find the length?

Thanks in advance,
- Raja.
 

9 More Discussions You Might Find Interesting

1. 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

2. Shell Programming and Scripting

Length of a variable

Hi, I have another question, I am very new to scripting. I am using c shell. I am trying to get the length of a variable. Right now I am using set var = 12 echo $#var but the # operator isn't working, it is telling me that the length is 1 when it is obviously two.... help! (3 Replies)
Discussion started by: karyn1617
3 Replies

3. 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

4. UNIX for Dummies Questions & Answers

Convert a tab delimited/variable length file to fixed length file

Hi, all. I need to convert a file tab delimited/variable length file in AIX to a fixed lenght file delimited by spaces. This is the input file: 10200002<tab>US$ COM<tab>16/12/2008<tab>2,3775<tab>2,3783 19300978<tab>EURO<tab>16/12/2008<tab>3,28523<tab>3,28657 And this is the expected... (2 Replies)
Discussion started by: Everton_Silveir
2 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. Shell Programming and Scripting

Split variable length and variable format CSV file

Dear all, I have basic knowledge of Unix script and her I am trying to process variable length and variable format CSV file. The file length will depend on the numbers of Earnings/Deductions/Direct Deposits. And The format will depend on whether it is Earnings/Deductions or Direct Deposits... (2 Replies)
Discussion started by: chechun
2 Replies

7. 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

8. Shell Programming and Scripting

[Solved] How to increment and add variable length numbers to a variable in a loop?

Hi All, I have a file which has hundred of records with fixed number of fields. In each record there is set of 8 characters which represent the duration of that activity. I want to sum up the duration present in all the records for a report. The problem is the duration changes per record so I... (5 Replies)
Discussion started by: danish0909
5 Replies

9. 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
STR_PAD(3)								 1								STR_PAD(3)

str_pad - Pad a string to a certain length with another string

SYNOPSIS
string str_pad (string $input, int $pad_length, [string $pad_string = " "], [int $pad_type = STR_PAD_RIGHT]) DESCRIPTION
This functions returns the $input string padded on the left, the right, or both sides to the specified padding length. If the optional argument $pad_string is not supplied, the $input is padded with spaces, otherwise it is padded with characters from $pad_string up to the limit. PARAMETERS
o $input - The input string. o $pad_length - If the value of $pad_length is negative, less than, or equal to the length of the input string, no padding takes place. o $pad_string - Note The $pad_string may be truncated if the required number of padding characters can't be evenly divided by the $pad_string's length. o $pad_type - Optional argument $pad_type can be STR_PAD_RIGHT, STR_PAD_LEFT, or STR_PAD_BOTH. If $pad_type is not specified it is assumed to be STR_PAD_RIGHT. RETURN VALUES
Returns the padded string. EXAMPLES
Example #1 str_pad(3) example <?php $input = "Alien"; echo str_pad($input, 10); // produces "Alien " echo str_pad($input, 10, "-=", STR_PAD_LEFT); // produces "-=-=-Alien" echo str_pad($input, 10, "_", STR_PAD_BOTH); // produces "__Alien___" echo str_pad($input, 6 , "___"); // produces "Alien_" ?> PHP Documentation Group STR_PAD(3)
All times are GMT -4. The time now is 01:04 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy