On the side, I had another question partly unrelated to the ones on top. Is there a way to change the filename on a directed output automatically, like for instance in the pseudo-code below. thanks again
thanks a lot,
Hello. Im just starting to learn awk so hang in there with me...I have a large text file formatted as such everything is in a single column
ID001
value 1
value 2
value....n
ID002
value 1
value 2
value... n
I want to be able to calculate the average for values for each ID from the... (18 Replies)
Hello,
I am trying to average multiple columns simultaneously while skipping the first column.
I am using this awk line to average one column
awk '{sum+=$3} END { print "Average = ",sum/NR}'
But I want to be able to do it for multiple columns while skipping the first column. There... (4 Replies)
Hello
I have file that consist of 2 columns of millions of entries
timestamp and throughput
I want to find the average (throughput ) for each equal timestamp before change it to proper format
e.g : i want to average 2 coloumnd fot all 1308154800 values in column 1
and then
print... (4 Replies)
Hi,
I am trying to average the values from 3 files with the same format. They are very large files so I will describe the file and show some it of. Basically the file has 83 columns (with nearly 7000 rows). The first three columns are the same for each file while the remaining 80 are values that... (1 Reply)
Hello all, I need to compute a row-wise average of files with a single column based on the pattern of the filenames. I really appreciate any help on this. it would just be very difficult to do them manually as the rows are mounting to 100,000 lines. the filenames are as below with convention as... (2 Replies)
Dear fellows, I need your help.
I'm trying to write a script to convert a single column into multiple rows.
But it need to recognize the beginning of the string and set it to its specific Column number.
Each Line (loop) begins with digit (RANGE).
At this moment it's kind of working, but it... (6 Replies)
Hello....
Pls help me (and sorry my english) :)
So
I have a file (test.txt) with 1 long line.... for example:
isgc jsfh udgf osff 8462 error iwzr 653 idchisfb isfbisfb sihfjfeb isfhsi gcz eifh
How to print after the "error" word the 2nd 4th 5th and 7th word??
output well be:
653 isfbisfb... (2 Replies)
I have a file (let say file B) like this:
File B:
A1 3 5
A1 7 9
A2 2 5
A3 1 3
The first column defines a filename and the other two define a range in that specific file. In the same directory, I have also three more files (File A1, A2 and A3). Here is 10 sample lines... (3 Replies)
I have data of an excel files as given below,
file1
org1_1 1 1 2.5 100
org1_2 1 2 5.5 98
org1_3 1 3 7.2 88
file2
org2_1 1 1 2.5 100
org2_2 1 2 5.5 56
org2_3 1 3 7.2 70
I have multiple excel files as above shown.
I have to copy column 1, column 4 and paste into a new excel file as... (26 Replies)
file1:
Name,Threshold,Curr Samples,Curr Error%,Curr ART
GETHome,100,21601,0.00%,47
GETregistry,100,21592,0.00%,13
GEThomeLayout,100,30466,0.00%,17
file2:
Name,Threshold,Curr Samples,Curr Error%,Curr ART
GETHome,100,21601,0.00%,33
GETregistry,100,21592,0.00%,22... (6 Replies)
Discussion started by: Raghuram717
6 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)