06-01-2009
See man csplit - this splits files based on context of data.
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1. Shell Programming and Scripting
Say I do a date command and get the time from 15 minutes ago.
I have a text file with the date printed out every minute or so and I want to cut the file at the date stamp given to me by the 15 minute ago time stamp.
Is there an easy way to do this?
Example:
date +%M gives me 56
I... (2 Replies)
Discussion started by: LordJezo
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2. Shell Programming and Scripting
How to cut data from big file
my file around 30 gb
I tried "head -50022172 filename > newfile.txt ,and tail -5454283 newfile.txt. It's slowy.
afer that I tried sed -n '46467831,50022172p' filename > newfile.txt ,also slow
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Hi All,
I need some help to effectively parse out a subset of results from a big results file.
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4. Shell Programming and Scripting
Hi I have some problem to cut out the second line in a output file and send to a new file it's a #!/bin/bash script
1 something
2 something
3 something
and after I cut
1 something
3 something
New file
2 something
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5. UNIX for Dummies Questions & Answers
How can I cut the text of definite length say from line no. 20 to 1000?
It is trivial ques, but I am very new to Unix.
Thanks :) (3 Replies)
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6. Shell Programming and Scripting
Hello everyone,
suppose there is a very big text file (>800 mb) that each line contains an article from wikipedia. Each article begins with a tag (<..>) containing its url. Currently there are 10^6 articles in the file.
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7. UNIX for Advanced & Expert Users
Looking for some help on using awk and cut
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Statement to: ... (5 Replies)
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Hello all,
Currently I have a txt file named as a.txt with the content as:
f e100
aa bb
cc dd
ee ff
f e222
aa dd
ff gg
f e987
dd aa
f e2222
gg ff
gg aa
dd ff
ee ee
While, for some reason I want to cut a.txt into small ones, e.g. f1.txt, f2.txt, f3.txt and f4.txt. The routine is to... (6 Replies)
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9. Shell Programming and Scripting
Hello Friends,
I am stuck with the below problem.Any help will be appreciated.
I have a file which has say 100 lines.
On the second last line I have a line from which i want to remove certain characters..
e.g
CAST(CAST( A as varchar(50)) || ',' ||
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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)