Sponsored Content
Top Forums UNIX for Dummies Questions & Answers File updation on matching key Post 302975220 by Don Cragun on Thursday 9th of June 2016 01:20:17 PM
Old 06-09-2016
I'm glad you got it to work. If you'd like to show us how you changed the code to perform the rounding you wanted, we might be able to offer suggestions for alternative ways to do it. (And, having your completed solution in the thread helps others who may have a similar problem in the future if they can see how you solved the problem.)

If field 8 always 6 characters? Or, can the length of that field vary from file to file too? (Making that field variable length isn't complicated, if the length varies.)

Can the original value in field 8 ever appear as the value of field 2, 3, 4, 5, 6, or 7 in any of your input files? (As long as the 1st field is always left aligned and the aren't any empty fields in your input files, it wouldn't be too hard to be sure that field 8 is modified in the output and not an earlier field with the same contents. But, the code is faster and simpler as provided in RudiC's suggestion if this isn't a concern for your input files.)
 

10 More Discussions You Might Find Interesting

1. Programming

Directory updation Notification?

Hi, I'm a UNIX newbie .. so forgive me if this question sounds dumb. :) Is it possible for Unix to notify a process that a particular directory has been updated? Rather that the process constantly polling the directory ... Awaiting your replies .. Thanks, VJ (6 Replies)
Discussion started by: vjsony
6 Replies

2. Linux

gcc updation on Linux machine

Hi All, I already have gcc complier installed in my machine. Its version is : gcc version 3.2.2 20030222 (Red Hat Linux 3.2.2-5) I am not sure whethere it's is latest gcc version available. I want to update my gcc version. Can anyone please suggest me what is the latest and stable gcc... (1 Reply)
Discussion started by: bisla.yogender
1 Replies

3. Shell Programming and Scripting

Matching by key fields

I have a file (key.dat) that contains two columns: AA|1234| BB|567| CC|8910| I have another file (extract.dat) that contains some data: SD|458|John|Smith| AA|3345|Frank|Williams| AA|1234|Bill|Garner| BD|0098|Yu|Lin| BB|567|Gail|Hansen| CC|8910|Ken|Nielsen| I want to compare the... (5 Replies)
Discussion started by: ChicagoBlues
5 Replies

4. Shell Programming and Scripting

awk should output if one input file doesnt have matching key

nawk -F, 'FNR==NR{a= $3 ;next} $2 in a{print $1, 'Person',$2, a}' OFS=, filea fileb Input filea Input fileb output i am getting : (2 Replies)
Discussion started by: pinnacle
2 Replies

5. AIX

Problem with updation of 'quota'

Hi, We have recently implemented 'quota' concept for the unix users. softlimit - 230MB hardlimit - 250MB We have applied the quota when few of users are more than the hardlimit,issue is that even though the users cleared the space, still its 'quota' was not updating properly. For some... (0 Replies)
Discussion started by: girish_satyam
0 Replies

6. Shell Programming and Scripting

check files updation

Hi All, Can anyone help to write the script to check files updation? i have files as mentioned below. which will be updated some time. i just want to check the last file is updating the data for last 15 mins or not. if its not updating i want to print NOT OK. if its updating data i want... (1 Reply)
Discussion started by: steve2216
1 Replies

7. Shell Programming and Scripting

Config file auto-updation

Hello All, I need to update my .cfg file which is used in the script for almost all runs. myfile.cfg file: var=1 var1=1 run=0 script: #! /bin/sh . /mydir/myfile.cfg echo $var"\t" $var1 exit So, the requirement is that the myfile.cfg should update every time I run the... (10 Replies)
Discussion started by: PikK45
10 Replies

8. Shell Programming and Scripting

Rsa public private key matching

Hi All, I have a requirement where i need to check if an rsa public key corresponds to a private key and hence return success or failure. Currently i am using the command diff <( ssh-keygen -y -e -f "$PRIVKEY" ) <( ssh-keygen -y -e -f "$PUBLICKEY" ) and its solving my purpose. This is in... (1 Reply)
Discussion started by: mritusmoi
1 Replies

9. UNIX for Dummies Questions & Answers

awk - Print lines if only matching key is found

I am looking to move matching lines (01 - 07) from File1 and 77 tab the matching string from File2, to File3.txt. I am almost done but - Currently, script is not printing lines to File3.txt in order. Thanks a lot. Any help is appreciated. Script I am using: awk 'FNR == NR && ! /^]*$/ {... (9 Replies)
Discussion started by: High-T
9 Replies

10. UNIX for Beginners Questions & Answers

Matching 2 files based on key

Hi all I have two files I need to match record from first file and second file on column 1,8 and and output only match records on file1 File1: 020059801803180116130926800002090000800231000245204003160000000002000461OUNCE000000350000100152500BM01007W0000 ... (5 Replies)
Discussion started by: arunkumar_mca
5 Replies
cut(1)							      General Commands Manual							    cut(1)

Name
       cut - cut out selected fields of each line of a file

Syntax
       cut -clist [file1 file2...]
       cut -flist [-dchar] [-s] [file1 file2...]

Description
       Use  the  command to cut out columns from a table or fields from each line of a file.  The fields as specified by list can be fixed length,
       that is, character positions as on a punched card (-c option), or the length can vary from line to line and be marked with a  field  delim-
       iter character like tab (-f option).  The command can be used as a filter.  If no files are given, the standard input is used.

       Use to make horizontal ``cuts'' (by context) through a file, or to put files together in columns.  To reorder columns in a table, use and

Options
       list	   Specifies  ranges  that must be a comma-separated list of integer field numbers in increasing order.  With optional - indicates
		   ranges as in the -o option of nroff/troff for page ranges; for example, 1,4,7; 1-3,8; -5,10 (short for 1-5,10);  or	3-  (short
		   for third through last field).

       -clist	   Specifies character positions to be cut out.  For example, -c1-72 would pass the first 72 characters of each line.

       -flist	   Specifies  the  fields  to be cut out.  For example, -f1,7 copies the first and seventh field only.	Lines with no field delim-
		   iters are passed through intact (useful for table subheadings), unless -s is specified.

       -dchar	   Uses the specified character as the field delimiter.  Default is tab.  Space or other characters with special  meaning  to  the
		   shell must be quoted.  The -d option is used only in combination with the -f option, according to XPG3 and SVID2/SVID3.

       -s	   Suppresses  lines  with  no	delimiter  characters.	 Unless  specified, lines with no delimiters are passed through untouched.
		   Either the -c or -f option must be specified.

Examples
       Mapping of user IDs to names:
       cut -d: -f1,5 /etc/passwd
       To set name to the current login name for the csh shell:
       set name=`who am i | cut -f1 -d" "`
       To set name to the current login name for the sh, sh5, and ksh shells:
       name=`who am i | cut -f1 -d" "`

Diagnostics
       "line too long"	   A line can have no more than 511 characters or fields.

       "bad list for c/f option"
			   Missing -c or -f option or incorrectly specified list.  No error occurs if a line has fewer fields than the list  calls
			   for.

       "no fields"	   The list is empty.

See Also
       grep(1), paste(1)

																	    cut(1)
All times are GMT -4. The time now is 02:38 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy