Get value from column subsection Post: 302836301

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

file subsection

Is there any way I can create a virtual file that is a subsection of another file? Similar to the way partitions are subsections of the disk device, but configurable and with a normal file source.

2. Shell Programming and Scripting

Changing one column of delimited file column to fixed width column

Hi, Iam new to unix. I have one input file . Input file : ID1~Name1~Place1 ID2~Name2~Place2 ID3~Name3~Place3 I need output such that only first column should change to fixed width column of 15 characters of length. Output File: ID1<<12 spaces>>Name1~Place1 ID2<<12...

3. Shell Programming and Scripting

Match column 3 in file1 to column 1 in file 2 and replace with column 2 from file2

Match column 3 in file1 to column 1 in file 2 and replace with column 2 from file2 file 1 sample SNDK 80004C101 AT XLNX 983919101 BB NETL 64118B100 BS AMD 007903107 CC KLAC 482480100 DC TER 880770102 KATS ATHR 04743P108 KATS...

4. Shell Programming and Scripting

Rename a header column by adding another column entry to the header column name URGENT!!

Hi All, I have a file example.csv which looks like this GrpID,TargetID,Signal,Avg_Num CSCH74_1_1,2007,61,256 CSCH74_1_1,212007,647,679 CSCH74_1_1,12007,3,32 CSCH74_1_1,207,299,777 I want the output as GrpID,TragetID,Signal-CSCH74_1_1,Avg_Num CSCH74_1_1,2007,61,256...

5. UNIX for Dummies Questions & Answers

Rename a header column by adding another column entry to the header column name

6. Shell Programming and Scripting

Difference of the same column when two other column matches and one column differs less than 1 hour

This is my input file : # cat list 20130430121600, cucm, location,76,2 20130430121600,cucm1,location1,76,4 20130430122000,cucm,location,80,8 20130430122000,cucm1,location1,90,8 20130430140000,cucm1,location1,87,11 20130430140000, cucm,location,67,9 This is the required output ...

7. Shell Programming and Scripting

Converting Single Column into Multiple rows, but with strings to specific tab column

Dear fellows, I need your help. I'm trying to write a script to convert a single column into multiple rows. But it need to recognize the beginning of the string and set it to its specific Column number. Each Line (loop) begins with digit (RANGE). At this moment it's kind of working, but it...

8. Shell Programming and Scripting

awk Print New Column For Every Two Lines and Match On Multiple Column Values to print another column

Hi, My input files is like this axis1 0 1 10 axis2 0 1 5 axis1 1 2 -4 axis2 2 3 -3 axis1 3 4 5 axis2 3 4 -1 axis1 4 5 -6 axis2 4 5 1 Now, these are my following tasks 1. Print a first column for every two rows that has the same value followed by a string. 2. Match on the...

9. Shell Programming and Scripting

Bring values in the second column into single line (comma sep) for uniq value in the first column

I want to bring values in the second column into single line for uniq value in the first column. My input jvm01, Web 2.0 Feature Pack Library jvm01, IBM WebSphere JAX-RS jvm01, Custom01 Shared Library jvm02, Web 2.0 Feature Pack Library jvm02, IBM WebSphere JAX-RS jvm03, Web 2.0 Feature...

10. UNIX for Beginners Questions & Answers

If pattern in column 3 matches pattern in column 2 (any row), print value in column 1

Hi all, I have searched and searched, but I have not found a solution that quite fits what I am trying to do. I have a long list of data in three columns. Below is a sample: 1,10,8 2,12,10 3,13,12 4,14,14 5,15,16 6,16,18 Please use code tags What I need to do is as follows: If a...

LEARN ABOUT CENTOS

truncate

TRUNCATE(1)							   User Commands						       TRUNCATE(1)

NAME

       truncate - shrink or extend the size of a file to the specified size

SYNOPSIS

       truncate OPTION... FILE...

DESCRIPTION

       Shrink or extend the size of each FILE to the specified size

       A FILE argument that does not exist is created.

       If  a  FILE  is	larger than the specified size, the extra data is lost.  If a FILE is shorter, it is extended and the extended part (hole)
       reads as zero bytes.

       Mandatory arguments to long options are mandatory for short options too.

       -c, --no-create
	      do not create any files

       -o, --io-blocks
	      treat SIZE as number of IO blocks instead of bytes

       -r, --reference=RFILE
	      base size on RFILE

       -s, --size=SIZE
	      set or adjust the file size by SIZE bytes

       --help display this help and exit

       --version
	      output version information and exit

       SIZE is an integer and optional unit (example: 10M is 10*1024*1024).  Units are K, M, G, T, P, E, Z, Y (powers of  1024)  or  KB,  MB,  ...
       (powers of 1000).

       SIZE  may also be prefixed by one of the following modifying characters: '+' extend by, '-' reduce by, '<' at most, '>' at least, '/' round
       down to multiple of, '%' round up to multiple of.

       GNU  coreutils  online  help:  <http://www.gnu.org/software/coreutils/>	Report	truncate  translation  bugs   to   <http://translationpro-
       ject.org/team/>

AUTHOR

       Written by Padraig Brady.

COPYRIGHT

       Copyright (C) 2013 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       dd(1), truncate(2), ftruncate(2)

       The  full  documentation  for truncate is maintained as a Texinfo manual.  If the info and truncate programs are properly installed at your
       site, the command

	      info coreutils 'truncate invocation'

       should give you access to the complete manual.

GNU coreutils 8.22						     June 2014							       TRUNCATE(1)