Hi,
I need to remove all lines from a file that do not start with numbers
For instance, if the first three characters on any line are not numbers, delete those lines
I've tried to do it with awk and it's not working, any ideas ?
Thanks (5 Replies)
E.g. the file is like this:
I want to delete all lines that begin with a number larger than 2, ignoring the lines that doesn't begin with a number!
PS:'2' is actually a variable that can have a lot of values:b:i bet you got it (10 Replies)
My folder is/app2/istech/scratch, which contain all the below files.
I need to delete the files which start from the prefixes.
dup_events_*.*
Event_*.*
New_time_*.*
New_Loc_*.*
New_Uptime_*.*
Detailed_Reason*.*
cmt_dup_*.*
Uptime_*.*
Can anyone please let me know how to write a... (3 Replies)
Hello Guys
Please let me know how to solve the below issue
I have a file like below
drop table R1416.ABC1 cascade constraints;
drop table R1416.ABC2 cascade constraints;
drop table R1416.ABC3 cascade constraints;
drop table R1416.ABC4 cascade constraints;
drop table R1416.ABC5... (7 Replies)
I am trying to find a specific set of characters in a long file. I only want to find the characters in column 265 for 4 bytes.
Is there a search for that? I tried cut but couldn't get it to work.
Ex. I want to find '9999' in column 265 for 4 bytes. If it is in there, I want it to print... (12 Replies)
Hi
I have a file which is tab-delimited. Now, I'd like to print the lines which have "chr6" string in both first and second columns. Could anybody help? (3 Replies)
Goodmorning,
I know how to cut a string and a column, and how to find a word.
I have a file with over 100 columns. All columns have a title in the first line. I have to delete all columns with the XXX title.
I can't use cut -f because the position of XXX columns change in each file, and in... (14 Replies)
I will appreciate if you help me here in this script in Solaris Enviroment.
Scenario:
i have 2 files :
1) /tmp/TRANSACTIONS_DAILY_20180730.txt:
201807300000000004
201807300000000005
201807300000000006
201807300000000007
201807300000000008
2)... (10 Replies)
Discussion started by: teokon90
10 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