The records are sorted by field 2 then by field 1.
They are not. It's field 1, then field 2.
Quote:
. . . but once you add more values, the calculation is not correct. . . .
How can that be "not correct"? You didn't specify what to do for field 2 values other than 2016 and 2017, so "ignore" was assumed. With your NEW sample data, the proposal given yields
- exactly what was requested.
With your modified code, several fields will be counted more than once, falsifying the average.
I want to find the top N entries for a certain field based on the values of another field.
For example if N=3, we want the 3 best values for each entry:
Entry1 ||| 100
Entry1 ||| 95
Entry1 ||| 30
Entry1 ||| 80
Entry1 ||| 50
Entry2 ||| 40
Entry2 ||| 20
Entry2 ||| 10
Entry2 ||| 50... (1 Reply)
Hi i have data with two columns like below.
I want to find average of column values like if the value in column 2 is between 0-250000 the average of column 1 is some xx and average of column2 is ww then if value is 250001-5000000 average of column 1 is yy and average of column 2 is zz.
And my... (5 Replies)
Dear Experts,
Kindly help me please to get the average from column 14 and to write the value at the last field., But we need to take as reference the column 16., example the first 4 lines has the same value in column 16, therefore I want ot get the average only for these lines in column 14. And... (2 Replies)
In the below awk I am trying to combine all matching $4 into a single $5 (up to the -), and count the lines in $6 and average all values in $7. The awk is close but it seems to only be using the last line in the file and skipping all others. The posted input is a sample of the file that is over... (3 Replies)
I am trying to output a tab-delimited result that uses the data from a tab-delimited file to combine and subtract specific lines.
If $4 matches in each line then the first matching sequential $6 value is added to $2, unless the value is 1, then the original $2 is used (like in the case of line... (3 Replies)
For some reason I am having difficulty performing what should be a fairly easy task. I would like to print lines of a file that have a unique value in the first field. For example, I have a large data-set with the following excerpt:
PS003,001 MZMWR/ L-DWD// *
PS003,001... (4 Replies)
I have two files which are the output of a multiple choice vocab test (60 separate questions) from 104 people (there are some missing responses) and the question list. I have the item list in one file (File1)
Item,Stimulus,Choice1,Choice2,Choice3,Choice4,Correct... (5 Replies)
Hi,
So awk is driving me crazy on this one. I have searched everywhere and read man, docs and every related post Google can find and still no luck. The actual files I need to run this on are sensitive in nature, but it is the same thing as if I needed to calculate weighted grades for multiple... (15 Replies)
Discussion started by: cotilloe
15 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS --debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.8.4 2005-05-03 SHELL-QUOTE(1p)