... , but unfortunately I seem to have lost the formatting of my file now. I think it was tab delimited before, now it just has a blank space between columns, and my next process wont accept this.
Helen
Last edited by danmero; 09-02-2011 at 09:43 AM..
Reason: Add fail-safe
Hello, guys!
"filename" has blocks with three lines each in this fashion:
93909286
#verified
has one bug
10909286
#unverified
pending
10909286
#unverified
pendingThe above example has duplicate blocks, and I have tried using sed to remove just one block... The... (2 Replies)
I have an awk script to find the maximum value of the 2nd column of a 2 column datafile, but I need to find the top 5 maximum values of the 2nd column.
Here is the script that works for the maximum value.
awk 'BEGIN { subjectmax=$1 ; max=0} $2 >= max {subjectmax=$1 ; max=$2} END {print... (3 Replies)
Is there an awk script that can easily perform the following operation?
I have a data file that is in the format of
1944-12,5.6
1945-01,9.8
1945-02,6.7
1945-03,9.3
1945-04,5.9
1945-05,0.7
1945-06,0.0
1945-07,0.0
1945-08,0.0
1945-09,0.0
1945-10,0.2
1945-11,10.5
1945-12,22.3... (3 Replies)
Hello people,
Once more I need your help with SED/AWK
I need to delete up to the Nth occurence of a char (from the beggining) and until the Mth occurence of a char (from the end)
Example:
Input:
a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z
Output:
i,j
Must delete up to the... (2 Replies)
Hello Members,
I have a csv file in the format below. Need help with awk statement to break nth column into 3 separate columns and export the changes to new file.
input file --> file.csv
cat file.csv|less
"product/fruit/mango","location/asia/india","type/alphonso"
need output in... (2 Replies)
I need to be able to search for a string in the first column and if that string exists than replace the nth column with "-9.99".
AW12000012012 2.38 1.51 3.01 1.66 0.90 0.91 1.22 0.82 0.57 1.67 2.31 3.63 0.00
AW12000012013 1.52 0.90 1.20 1.34 1.21 0.67 ... (14 Replies)
I am passing a variable and replace nth value with the variable.
I tried using many options in awk command but unable to ignore the special characters in the output and also unable to pass the actual value.
Input : "1","2","3"
Output : "1","1000","3"
TempVal=`echo 1000`
Cat... (2 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)
Hi guys,
I have problem to append new data at the end of each line of the files where it takes whole value of the nth column. My expected result i just want to take a specific value only. This new data is based on substring of 11th, 12th 13th column that has comma seperated value.
My code:
awk... (4 Replies)
I wish to print first, third and sixth till the last column from the output of ls command
ls -ltr /app/deploy.yml
-rw-rw-r-- 1 user1 dba 27342 Aug 28 10:17 /app/deploy.yml
Desired Output:
Below command gives me the desired output.
ls -ltr /app/deploy.yml | awk '{$2=$4=$5=""; print... (6 Replies)
Discussion started by: mohtashims
6 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)