Replace a field where values are null in a file. Post: 302818777

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1. Shell Programming and Scripting

identifying null values in a file

I have a huge file with 20 fileds in each record and each field is seperated by "|". If i want to get all the reocrds that have 18th or for that matter any filed as null how can i do it? Please let me know

2. Shell Programming and Scripting

Replace 4th field if null

Hi .. Can some one please suggest me how to replace 4th field(column) of a .csv file with "NA" if it is null. Input file data: |A|21|B1||1.1| |A|21|C|RAGH|1.1| |A|21|D1||1.1| |A|21|C|YES|1.1 Expected Output |A|21|B1|NA|1.1| |A|22|C|RAGH|1.1| |B|23|D1|NA|1.1| |A|24|C|YES|1.1| Thank...

3. Shell Programming and Scripting

File values alwaya null

Hi All , below is my shell program. !/bin/sh set -x #---------------------------------------------------------------------------------------- # Program : weekly_remove_icd_file.sh # Author : # Date : 04/06/2013 # Purpose : Execute the script to...

4. Shell Programming and Scripting

To find char field and replace null

hi, i having a file with | seperated in which i need to search char in 3rd column and replace with null. i need to replace only the coulmn where character occurs in 3rd field for eg: file1.txt xx|yy|xx|12 output file: xx|yy||12

5. Shell Programming and Scripting

Find a blank field and replace values to NA

Hi All, i have a file like col1 col2 col3 13 24 NA 12 13 14 11 12 13 14 22 NA 18 26 NA in this file if i found "NA" other values in the line are also replace by NA Could you help me!

6. Shell Programming and Scripting

Replace null values in csv with zero

Hi, i have another issue: i have three files: FILE 1 ServiceEventHandler, Processed,Percentage 5285337,100% FILE 2 Wallet, Processed,Percentage 5285337,100%

7. Shell Programming and Scripting

Multiple columns replace with null values.

I am trying to replace the partcular columns(Col3,col5,col20,col44,col55,co56,col59,col60,col61,col62,col74,col75,col88,col90,col91,col93,col94,col95) with empty Input file Col1,col2,col3,col4,col5------,col100 1,2,3,4,5,---------,100 3,4,5,6,7,---------,300 Output : ...

8. Shell Programming and Scripting

Replace null values with dot using awk

Using awk I am trying to replace all blank or null values with a . in the tad delimited input. I hope the awk is close. Thank you :). input name test sam 1 liz 2 al 1 awk awk 'BEGIN{FS=OFS="\t"}{for(i=1;++i<NF;)$i=$i?$i:"."}1'input awk 'BEGIN { FS =...

9. UNIX for Beginners Questions & Answers

How to replace the field values, which are greater than the specified value with TRUE?

I have a csv file as given below, org1 org2 org3 org4 org5 gene1 100 80 90 80 150 gene2 30 70 50 50 115 gene3 40 120 60 40 105 gene4 20 72 40 60 20 I need to replace the fields are having values greater than 100 with "TRUE". I used the following commands to replace...

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lnewusers

lnewusers(8)						      System Manager's Manual						      lnewusers(8)

NAME

       lnewusers - Create new user accounts

SYNOPSIS

       lnewusers [OPTION]...

DESCRIPTION

       Creates new user accounts using data read from standard input.

       The input data consits of lines, each line has 7 colon-separated fields:

       User Name

       Plaintext Password

       User ID
	      lnewusers refuses to create users with user ID 0 (the root user ID).

       Group  If  this field is a valid group ID, it is interpreted as a group ID, otherwise as a group name.  If the field is empty, a group name
	      equal to user name is used.

	      If the specified group does not exist, it is automatically created.  If the group is specified with a group ID,  the  created  group
	      has group name equal to the user name.

       GECOS  The GECOS field is traditionally used to store user's real name and other information.

       Home Directory
	      If  this field is empty, a default specified by libuser configuration, or /home/username if libuser configuration does not specify a
	      default, is used.

       Login Shell
	      If this field is empty, a default specified by libuser configuration is used.

       Errors in user specifications are reported and processing continues on the next line.

OPTIONS

       -f, --file=file
	      Read account data from file instead of standard input.

       -i, --interactive
	      Ask all questions when connecting to the user database, even if default answers are set up in libuser configuration.

       -M, --nocreatehome
	      Don't create home directories.

       -n, --nocreatemail
	      Don't create mail spool files.

EXIT STATUS

       The exit status is 0 on success, nonzero on fatal error.  Errors in user specifications are not reflected in the exit status.

libuser 							    Jan 12 2005 						      lnewusers(8)