07-27-2010
This User Gave Thanks to guruprasadpr For This Post:
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
With the following small script I list the size of documents belonging to a certain user by each time selecting the bytes-field of that file ($7). Now it fills the array with every file it finds so in the end the output of some users contains up to 200.000 numbers. So how can I calculate... (7 Replies)
Discussion started by: Hille
7 Replies
2. Shell Programming and Scripting
awk '
FILENAME == "all" { balance += substr($0,17,13)
dt = substr($0,6,8) }
END { for ( name in balance )
printf("%013s %3s of %8s\n", balance/100,name,dt) | "sort "
} ' all > summation
using this code i wanted to take summary totals of... (3 Replies)
Discussion started by: paresh n doshi
3 Replies
3. Shell Programming and Scripting
Hi Eveyone,
I am working on one shell script to find the specific records from data file and add the totals into variables and print them. you can find the sample data file below for more clarification.
Sample Data File:
PXSTYL00__20090803USA
CHCART00__20090803IND... (7 Replies)
Discussion started by: veeru
7 Replies
4. Shell Programming and Scripting
I need to go through files in a folder and names that match write to a new file and have counts of the seperate names. fairly new to scripting and know what I want but do not know how to script it. example of what I need follows
PACKAGE='ls -A1 | tr -s '-' '^' | cut -f2 -d"^" | sort -n'
loop... (2 Replies)
Discussion started by: freddie999
2 Replies
5. Shell Programming and Scripting
I have two files, uploads.txt and downloads.txt. I would like to combine the columns of these files based on the ip address. How can I best do this?
Uploads.txt
192.168.0.147 1565369
192.168.0.13 1664855
192.168.0.6 1332868
Downloads.txt
192.168.0.147 9838820
192.168.0.18 12051718... (7 Replies)
Discussion started by: zanyspydude
7 Replies
6. Shell Programming and Scripting
Afternoon,
I have a script which creates/modifies data into a formatted csv.
The trailer record should display 2 columns, the first is a static entry of "T" to identify it as a trailer record. The 2nd is a total of amounts in a column throughout the entire file.
My total isn't displaying... (8 Replies)
Discussion started by: mcclunyboy
8 Replies
7. Shell Programming and Scripting
Hi,
I have a similar input format-
A_1 2
B_0 4
A_1 1
B_2 5
A_4 1
and looking to print in this output format with headers. can you suggest in awk?awk because i am doing some pattern matching from parent file to print column 1 of my input using awk already.Thanks!
letter number_of_letters... (5 Replies)
Discussion started by: prashob123
5 Replies
8. Shell Programming and Scripting
I have a one-liner script like this that gives a total of everything in various directories:
for i in *;
do (cd $i && cd statelist && echo $i && ls -la |awk 'NR>3 {SUM += $5}\
END { print "Total number of elements " SUM }');done
It works just great but at the end I want to print a grand... (3 Replies)
Discussion started by: newbie2010
3 Replies
9. UNIX for Beginners Questions & Answers
I would like to create bins to get histogram with totals and percentage, e.g. starting from 0.
If possible to set the minimum and maximum value in the bins ( in my case value min=0 and max=20 )
Input file
8 5
10 1
11 4
12 4
12 4
13 5
16 7
18 9
16 9
17 7
18 5
19 5
20 1
21 7 (10 Replies)
Discussion started by: jiam912
10 Replies
EXPR(1) User Commands EXPR(1)
NAME
expr - evaluate expressions
SYNOPSIS
expr EXPRESSION
expr OPTION
DESCRIPTION
--help display this help and exit
--version
output version information and exit
Print the value of EXPRESSION to standard output. A blank line below separates increasing precedence groups. EXPRESSION may be:
ARG1 | ARG2
ARG1 if it is neither null nor 0, otherwise ARG2
ARG1 & ARG2
ARG1 if neither argument is null or 0, otherwise 0
ARG1 < ARG2
ARG1 is less than ARG2
ARG1 <= ARG2
ARG1 is less than or equal to ARG2
ARG1 = ARG2
ARG1 is equal to ARG2
ARG1 != ARG2
ARG1 is unequal to ARG2
ARG1 >= ARG2
ARG1 is greater than or equal to ARG2
ARG1 > ARG2
ARG1 is greater than ARG2
ARG1 + ARG2
arithmetic sum of ARG1 and ARG2
ARG1 - ARG2
arithmetic difference of ARG1 and ARG2
ARG1 * ARG2
arithmetic product of ARG1 and ARG2
ARG1 / ARG2
arithmetic quotient of ARG1 divided by ARG2
ARG1 % ARG2
arithmetic remainder of ARG1 divided by ARG2
STRING : REGEXP
anchored pattern match of REGEXP in STRING
match STRING REGEXP
same as STRING : REGEXP
substr STRING POS LENGTH
substring of STRING, POS counted from 1
index STRING CHARS
index in STRING where any CHARS is found, or 0
length STRING
length of STRING
+ TOKEN
interpret TOKEN as a string, even if it is a
keyword like `match' or an operator like `/'
( EXPRESSION )
value of EXPRESSION
Beware that many operators need to be escaped or quoted for shells. Comparisons are arithmetic if both ARGs are numbers, else lexicograph-
ical. Pattern matches return the string matched between ( and ) or null; if ( and ) are not used, they return the number of characters
matched or 0.
Exit status is 0 if EXPRESSION is neither null nor 0, 1 if EXPRESSION is null or 0, 2 if EXPRESSION is syntactically invalid, and 3 if an
error occurred.
AUTHOR
Written by Mike Parker, James Youngman, and Paul Eggert.
REPORTING BUGS
Report expr bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
COPYRIGHT
Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
The full documentation for expr is maintained as a Texinfo manual. If the info and expr programs are properly installed at your site, the
command
info coreutils 'expr invocation'
should give you access to the complete manual.
GNU coreutils 7.1 July 2010 EXPR(1)