I am using egrep to extract numbers from a file and storing them as variables in a script. But I am not able to do any arithmetic operations on the variables using "expr" because it stores them as char and not integers. Here is my code and the error I get. Any help will be appreciated.
#!/bin/sh... (3 Replies)
Hi, I would like ask for you help for coding array operation.
array= ( a b c d e f )
I would like to remove entry "d" from my array and import the remaining entries back to the array.
Thanks. (3 Replies)
Dear Brothers and Sisters ,
If I use the command date , it will echo out today . How can I get the tomorrow date using the command date ? How to I do the date operation ?
Thanks you very much :):):):):) (1 Reply)
I gurus of Solaris,
I need to do a Procedure concerning in the Maintenance of Solaris Server.
What are the parameters that I must be see Periodically in a Server.
For example the space I (df -h) must be each week.- In this server exist a Database aplication (Oracle), and log's that increase or... (4 Replies)
I am trying to enter a third column in this file, but the third column should that I call "Math" perform a some math calculations based on the value found in column #2.
Here is the input file:
Here is the desired output:
Output
GERk0203078$ Levir Math
Cotete_1... (5 Replies)
I have a two files, file A and B, which have 5 columns, and each 5 columns are made up of random numbers, that means, numbers are all different.
They have same amount of lines (Both 1000 lines)
I hope to do a operation
1) 2nd column of file A - 2nd column of file B
2) 5th column of... (4 Replies)
I need to read a file line by line, then depending on the contents of each line, type in a code that will get written to an array.
The problem I have is when I ask the user to confirm the input code, if it is wrong, how do i Return to ask again?
Any thing I try increments the file to the next... (6 Replies)
Hi Experts,
Please bear with me, i need help
I am learning AWk and stuck up in one issue.
First point : I want to sum up column value for column 7, 9, 11,13 and column15 if rows in column 5 are duplicates.No action to be taken for rows where value in column 5 is unique.
Second point : For... (12 Replies)
Discussion started by: as7951
12 Replies
LEARN ABOUT FREEBSD
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