Cut too slow Post: 302193819

5 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

File processing is very slow with cut command

Dear All, I am using the following script to find and replace the date format in a file. The field18 in the file has the following format: "01/26/2010 11:55:14 GMT+04:00" which I want to convert into the following format "20100126115514" for this purpose I am using the following lines of codes:...

2. Shell Programming and Scripting

cut, sed, awk too slow to retrieve line - other options?

Hi, I have a script that, basically, has two input files of this type: file1 key1=value1_1_1 key2=value1_2_1 key4=value1_4_1 ... file2 key2=value2_2_1 key2=value2_2_2 key3=value2_3_1 key4=value2_4_1 ... My files are 10k lines big each (approx). The keys are strings that don't...

3. Shell Programming and Scripting

Cut Command error cut: Bad range

Hi Can anyone what I am doing wrong while using cut command. for f in *.log do logfilename=$f Log "Log file Name: $logfilename" logfile1=`basename $logfilename .log` flength=${#logfile1} Log "file length $flength" from_length=$(($flength - 15)) Log "from...

4. UNIX for Beginners Questions & Answers

Cut command: can't make it cut fields

I'm a complete beginner in UNIX (and not a computer science student either), just undergoing a tutoring course. Trying to replicate the instructions on my own I directed output of the ls listing command (lists all files of my home directory ) to My_dir.tsv file (see the screenshot) to make use of...

5. Shell Programming and Scripting

Using :<<cut / cut to comment out block of bash script

I am using : << cut / cut to comment out block of code. Works fine on few lines of script, then it gives me this cryptic error when I try to comment out about 80 lines. The "warning " is at last line of script. done < results 169 echo "END read all positioning parameters" 170...

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)