$ signifies a command prompt, it's not part of the code.
You don't need cat ... | while.
Just A is just a variable, call it what you want: =1 is just to record that the value of the record ($0) from the first file (FR==FNR) has been stored. This is used later (A[$1]) to test against the first field of the second file, in which case $2 from that file is displayed.
Hi,
I have a file that has many columns. Let us say "Employee_number" "Employee_name" "Salary". I want to display all entries in a column by giving all or part of the column name. For example if I input "name" I want all the employee names printed. Is it possible to do this in a simple manner... (2 Replies)
Hi friends ,
I am new to unix ,need your help to fix this
there is a ~ deliminated file. how to find the 5th column of the row.
awk 'print $5 ' abc.txt
it doesnot work . it works for table deliminated file. My data file is like the following manner.
abc.txt
--------
a~b~c~d~e~f... (3 Replies)
I have a data in a file like this
1 praveen bmscollege
2 shishira bnmit
3 parthiva geethamce
I want to search "praveen" using awk command i tried like this but i did not get
awk `$2="praveen" {print $0} ` praveen.lst
can anyone help me solving this problem in... (2 Replies)
I am trying to search a given text in a file and find its last occurrence index. The task is to append the searched index in the same file but in a separate column. I am able to accomplish the task partially and looking for a solution.
Following is the detailed description:
names_file.txt
... (17 Replies)
Hi have a large spreadsheet which has 4 columns
APM00111803814 server_2 96085 Corp IT Desktop and Apps
APM00111803814 server_2 96085 Corp IT Desktop and Apps
APM00111803814 server_2 96034 Storage Mgmt Team
APM00111803814 server_2 96152 GWP... (6 Replies)
Want to search a pattern in column
using the below command which not helpful
awk -F"\|" '$1 == '"${VAR}"' {print $1,$2}' file
how to search using "==" with variable other than the below case.
awk -F"\|" '$1 ~ /'"${VAR}"'/ {print $1,$2}' file (14 Replies)
Hello,
I have a comma seperate metadata as follows:
CITY ,COUNTY,STATE,COUNTRY
NEW_YORK,NYC ,NY ,USA
NEWARK ,ESSEX ,NJ ,USA
CHICAGO ,COOK ,IL ,USA
SEATTLE ,MINER ,WA ,USA
In my process, I get two key values ie
CITY NAME (can be one of the... (7 Replies)
I'm interested to match column pattern through awk using an external variable for data:
-9 1:751343:T:A -9 0 T A 0.726 -5.408837e-03 9.576603e-03 7.967536e-01 5.722312e-01
-9 1:751756:T:C -9 0 T C 0.727 -5.360458e-03 9.579447e-03 7.966977e-01 5.757858e-01... (7 Replies)
Hello,
Similar question to my previous posts. I am sorry for the trouble...
Just checked my old threads but I can not implement any solution into this case..
My aim is to grab each line in fileA, check it in fileB and merge with fileC (tab separated) in corresponding line as given below:
FileA:... (2 Replies)
Discussion started by: baris35
2 Replies
LEARN ABOUT LINUX
colrm
COLRM(1) BSD General Commands Manual COLRM(1)NAME
colrm -- remove columns from a file
SYNOPSIS
colrm [start [stop]]
DESCRIPTION
The colrm utility removes selected columns from the lines of a file. A column is defined as a single character in a line. Input is read
from the standard input. Output is written to the standard output.
If only the start column is specified, columns numbered less than the start column will be written. If both start and stop columns are spec-
ified, columns numbered less than the start column or greater than the stop column will be written. Column numbering starts with one, not
zero.
Tab characters increment the column count to the next multiple of eight. Backspace characters decrement the column count by one.
ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7).
EXIT STATUS
The colrm utility exits 0 on success, and >0 if an error occurs.
SEE ALSO awk(1), column(1), cut(1), paste(1)HISTORY
The colrm command appeared in 3.0BSD.
BSD August 4, 2004 BSD