Hi,
I have 20 files which have respective 50 lines with different values.
I would like to process each line of the 50 lines in these 20 files one at a time and do an average of 3rd field ($3) of these 20 files. This will be output to an output file.
Instead of using join to generate whole... (8 Replies)
Hey all,
I ran some simulations, of which the output is 100s of files. I've used grep to extract the vital information needed from the files. This has made my task somewhat easier. But I still need to perform some mathematical calculations (average and geometrical average) on the results of the... (9 Replies)
Hi,
I have a space delimited text file that looks like the following:
Aa 100 200
Bb 300 100
Cc X 500
Dd 600 X
Basically, I want to take the average of columns 2 and 3 and print it in column 4. However if there is an X in either column 2 or 3, I want to print the non-X value. Therefore... (11 Replies)
Hi,
I would like to calculate the average of column 'y' based on the value of column 'pos'.
For example, here is file1
id pos y c
11 1 220 aa
11 4333 207 f
11 5333 112 ee
11 11116 305 e
11 11117 310 r
11 22228 781 gg
11 ... (2 Replies)
Hi,
I have 3 to 4 different files, from that i need to take a Average of numbers from a particular column. here i have to take 4th column,
that should present in diff. file.
File 1:
Col1 col2 col3 col4
1 11 sa 12.00
2 22 sb 134.59
3 33 sc 11.99
4 44 sd 12.44
Col1 col2 col3... (8 Replies)
Hi all,
I think so I’m getting the result is wrong, while using following awk commend,
colval=$(awk 'FNR>1 && NR==FNR{a=$4;next;} FNR>1 {a+=$4; print $2"\t"a/3}'
filename_f.tsv filename_f2.tsv filename_f3.tsv)
echo $colval >> Result.tsv
it’s doing the condition 2 times, first result... (5 Replies)
Hi All,
I have two files in the following format, with numbers being defined under columns(described by a set of headers) and rows(again defined by a set of identifiers)
2013 2013
Make200 Make201
Merc BMW
Jpur Del
... (9 Replies)
Hi,
My input file
Gene1 1
Gene1 2
Gene1 3
Gene1 0
Gene2 0
Gene2 0
Gene2 4
Gene2 8
Gene3 9
Gene3 9
Gene4 0
Condition:
If the first column matches, then look in the second column. If there is a value of zero in the second column, then don't consider that record while averaging.
... (5 Replies)
Hello All,
What is load average and how is it computed in Solaris 10?
What are the different ranges for normal, warning and danger signs?
Kindly clarify.
Thank you,
Sunil Kumar (3 Replies)
Hello Members,
Need your expert opinion how to tackle below.
I have an input file that looks like below:
USS|AWCC|AFGAW|93|70
USSAA|Roshan TDCA|AFGTD|93|72,79
ALB|Vodafone|ALBVF|355|69
ALGEE|Wataniya (Nedjma)|DZAWT|213|50,550
I like output file in below format:
... (7 Replies)
Discussion started by: umarsatti
7 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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 v5.16.3 2010-06-11 SHELL-QUOTE(1)