I have a rather large file of numbers which i would like to read into a script and then do some maths on a specific column( e.g column).
so far i have been using the following awk command
Code:
awk '{print $4}' infile.txt > out.tmp
to strip out the desired column within the in perl script and at the end of the script i delete the tmp file, however this is rather cumbersome when dealing with multiple files, does any one have any suggestion how i can do this directly in perl?
Hi,
I've list of files in a directory, which have date stamp value in their names.
ex:
abc_data_20071102.csv,
abc_data_20091221.csv,
abc_data_20100110.csv,
abc_data_20100222.csv,
abc_data_20080620.csv,... etc.,
I need to select and process only files, within the given date... (4 Replies)
Hi,
I am writing a comparator script, which comapre two txt files(column by column)
below are the precondition of this comparator
1)columns of file are not seperated
Ex.
file1.txt
8888812341181892
1243548895685687
8945896789897789
1111111111111111
file2.txt
9578956789567897... (2 Replies)
Hello
Kindly help me to find out the first column from first line of a flat file in perl
I/P
9869912|20110830|00000000000013009|130|09|10/15/2010 12:36:22|W860944|N|00
9869912|20110830|00000000000013013|130|13|10/15/2010 12:36:22|W860944|N|00... (5 Replies)
I am new to scripting/programming, so I apologize for any novice questions.
I have a tab delimited text file that was saved from excel xls file.
I am trying to select only the third column using awk command. My command line is as below:
cat test.txt | awk '{print $3}'
However, above... (8 Replies)
Hi again,
I need to further process the results of a previous manipulation.
I have a file with three columns
e.g.
AAA5 0.00175 1.97996e-06
AAA5 0.01334 2.14159e-05
AAA5 0.01340 4.12155e-05
AAA5 0.01496 1.10312e-05
AAA5 0.51401 0.0175308
BB0 0.00204 2.8825e-07
BB0 0.01569 7.94746e-07
BB0... (6 Replies)
Hi,
I have a file with the following columns:
361459 447394 CHL1
290282 290282 CHL1
361459 447394 CHL1
361459 447394 CHL1
178352861 178363529 AGA
178352861 178363529 AGA
178363657 178363657 AGA
Essentially, using CHL1 as an example. For any line that has CHL1 in... (2 Replies)
Hi All,
The value of a column in my DB table is:
LOAD DATA
APPEND
INTO TABLE MK9210.EG
FIELDS TERMINATED BY '|'
TRAILING NULLCOLS
(
STUDY CHAR
,PATIENT CHAR
,CPEVENT CHAR
,NAMEG CHAR
,REFIDEG CHAR
,POSEG CHAR
,METHEG CHAR
,EGDAT CHAR
,EGTIM CHAR
,COMEG CHAR
,COM1EG CHAR (5 Replies)
I can not figure out how to iterate a perl command that inputs a value into columns and then combines them. I need to put a numerical value in column one and the word "Null" in all others, and then join at the end. I think the below is close, but I am not sure about the lines in bold. I... (7 Replies)
Hello,
I have a sample data like this:
A1 B1 100.00
B1 A1 100.00
A2 B2 90.80
B2 A2 90.80
A3 B3 99.07
B3 A3 99.07
A4 B4 99.00
B4 A4 99.00
A5 B5 97.13
B5 A5 99.53
.
.
Ax By i
By Ax j
each two lines are same comparison with opposite order. What I expected is... (3 Replies)
Discussion started by: nengcheng
3 Replies
LEARN ABOUT DEBIAN
shtool-table
SHTOOL-TABLE.TMP(1) GNU Portable Shell Tool SHTOOL-TABLE.TMP(1)NAME
shtool-table - GNU shtool pretty-print a field-separated list
SYNOPSIS
shtool table [-F|--field-sep sep] [-w|--width width] [-c|--columns cols] [-s|--strip strip] strsepstr...
DESCRIPTION
This pretty-prints a list of strings as a table.
OPTIONS
The following command line options are available.
-F, --field-sep sep
Separate columns using sep. Default is ":".
-w, --width width
Width of each column. Default is 15 characters.
-c, --columns cols
Number of columns. Default is 3.
-s, --strip strip
Strip off any characters past strip. Default is 79.
EXAMPLE
# shell script
shtool table -F , -w 5 -c 4 "1,2,3,4,5,6,7,8,9,10,11,12"
HISTORY
The GNU shtool table command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 1999 for GNU shtool.
SEE ALSO shtool(1), tr(1), fmt(1), sh(1), awk(1), sed(1).
18-Jul-2008 shtool 2.0.8 SHTOOL-TABLE.TMP(1)