I did
However, this replaced only one of the columns then the rest all were empty.
Another bad idea was to cut the first 3 letter from the file.txt > file1.txt and re-join desired columns from file.txt to make file3.txt
It can be done but very lousy solution from my end. I thought of using awk find ":" replace with "" on specific columns 10th-827th but didnt know how to do so?
Hi all,
I have a variable, on some machines it is '1024', which is fine, but on others it is '1024Mb' etc. I need this variable to simply be '1024', does anyone know how I could ensure this is always the case? Perhaps a command to remove any letters/characters that aren't integers if there is... (3 Replies)
I need help removing the last character of every line if it is a certain character. For example I need to get rid of a % character if it is in the last position.
Input:
aaa%
%bbb
ccc
d%dd%
Output should be:
aaa
%bbb
ccc
d%dd
I tried this but it gets rid of all of the % characters.... (5 Replies)
Hi all,
I am having a bit of a hard time using awk. I must do something wrong, but I don't know what... Any help would be greatly appreciated!
I read a file, as follows :...
ATOM 21 C THR A 4 23.721 -26.194 1.909 1.00 32.07 C
ATOM 22 O THR A 4 ... (2 Replies)
i have this problem:
i must hide a string with a character such as _ by command
WORD=string;
XXX=`echo $WORD | sed 's//_/g'
but after, users must send in input a character and i must to replace the _ with the input character or better i can do this
-$CHARS_INPUT
i have think to use command... (3 Replies)
I have a text file that has three columns. But at the end of the text file, there are trailing lines that have missing second and third columns:
4 0.04972604 KLHL28
4 0.0497332 CSTB
4 0.04979822 AIF1
4 0.04983331 DECR2
4 0.04990344 KATNB1
4
4
4
4
How can I remove the trailing... (3 Replies)
hi, I have quite a bunch of files with annoyingly long filenames. I wanted to cut the range of characters from 9-18 and just retain the first 8 characters and the .extension. any suggestion how to do it. thanks much.
original filename: 20000105_20000105_20100503.nc.asc
output filename:... (4 Replies)
Hi,
I columns with both number and letters however i need the number 4 trimmed off the lines that have 3 numbers in them so it just because the 2 preceding numbers only
For example
V25QG2-K18QG-V25CG2
L26HG-L17HA-L26CG
I434QD1-L19HB2-I434CD1
I434QD1-A31QB-I434CD1 ... (7 Replies)
Hi all,
Disclosure: I am very new to Unix, but eager to learn..
I've been tasked with transferring logs to a remote server. After I've verified these logs have transferred correctly I have to remove the source files. The naming scheme is:
/directory/2012.05.01
/directory/2012.05.02
..and... (1 Reply)
Hi,
I want to remove trace files in a particular directory for a specific date range. Currently i can remove based on time (e.g find /path/*.trm -mtime +1000 -exec rm {} \;). But i want to remove .trm files within a date range. E.g to remove .trm files between jan 1 2002 to April 15 2005.
... (3 Replies)
In each line of file, I wish to check if word1 is a non-connected subset of any of the other words in the line. If yes, keep only the words that ward1 is a subset of. Else, remove the whole line.
Also, I want to remove the letters that word1 doesn't match with, except for "_+"
Example file:... (2 Replies)
Discussion started by: Viernes
2 Replies
LEARN ABOUT MINIX
cut
CUT(1) General Commands Manual CUT(1)NAME
cut - select out columns of a file
SYNOPSIS
cut [ -b | -c] list [file...]
cut -f list [-d delim] [ -s]
OPTIONS -b Cut specified bytes
-c Select out specific characters
-d Change the column delimiter to delim
-f Select out specific fields that are separated by the
-i Runs of delimiters count as one
-s Suppres lines with no delimiter characters, when used
EXAMPLES
cut -f 2 file # Extract field 2
cut -c 1-2,5 file # Extract character columns 1, 2, and 5
cut -c 1-5,7- file # Extract all columns except 6
DESCRIPTION
[file...]" delimiter character ( see delim)" with the -f option. Lines with no delimiters are passwd through untouched"
Cut extracts one or more fields or columns from a file and writes them on standard output. If the -f flag is used, the fields are sepa-
rated by a delimiter character, normally a tab, but can be changed using the -d flag. If the -c flag is used, specific columns can be
specified. The list can be comma or BLANK separated. The -f and -c flags are mutually exclusive. Note: The POSIX1003.2 standard requires
the option -b to cut out specific bytes in a file. It is intended for systems with multi byte characters (e.g. kanji), since MINIX uses
only one byte characters, this option is equivalent to -c. For the same reason, the option -n has no effect and is not listed in this man-
ual page.
SEE ALSO sed(1), awk(9).
CUT(1)