These are not the same thing. Knowing it's tab-delimited text is good.
Knowing which column you wanted would also be nice... I'm assuming it's the first and only column, but 'tab separated' has little meaning when there's no columns!
Hi, all.
I need a shell script which gathers data from a remote XML file and then displays it according to my needs.. I need this for my job due to the fact that I need to keep track price changes of euro, usd, gold, etc.
The XML file I am talking about is located at this page: cnnturk dot... (4 Replies)
Hi everyone,
I have file1 and file2 comma separated both.
file1 is:
Header1,Header2,Header3,Header4,Header5,Header6,Header7,Header8,Header9,Header10
Code7,,,,,,,,,
Code5,,,,,,,,,
Code3,,,,,,,,,
Code9,,,,,,,,,
Code2,,,,,,,,,file2... (17 Replies)
I have a text file that has three columns. But at the end of the text file, there are trailing lines that have missing second and third columns:
4 0.04972604 KLHL28
4 0.0497332 CSTB
4 0.04979822 AIF1
4 0.04983331 DECR2
4 0.04990344 KATNB1
4
4
4
4
How can I remove the trailing... (3 Replies)
i have a file with two columns, and i want to uniquely sort the values in fist column and add the corresponding values in the second columns
eg
file a contents
tom 200
john 300
sow 500
tom 800
james 50
sow 300
output shpould be in file b as
tom 1000
john 300
sow 800
james 50 (0 Replies)
Hello Friends,
I have a CDR file and i need to print out 2 columns with their field position which matches to some constant values,
a part of input file
CZ=1|CZA=1|DIAL=415483420001|EE=13|ESF=1|ET=|FF=0|9|MNC=99|MNP=9041|MTC=0|NID=2|NOA=international|ON=1|
OutPut
... (3 Replies)
Hello all,
I am using printf to print the sorted o/p in my script.I am trying to sort in following way but doesn't work.
printf "%13s %2s UDP %15s:%s Program %4s HD: %23s HD: %23s %10s %s %s %3s days %3s hours\n" $encoder $i "${ipaddr}" ${portno} ${progno} ${inres} ${outres} ${inrate}... (4 Replies)
I am trying to find a specific set of characters in a long file. I only want to find the characters in column 265 for 4 bytes.
Is there a search for that? I tried cut but couldn't get it to work.
Ex. I want to find '9999' in column 265 for 4 bytes. If it is in there, I want it to print... (12 Replies)
Hello
I have a file as below
chr1 start ref alt code1 code2
chr1 18884 C CAAAA 2 0
chr1 135419 TATACA T 2 0
chr1 332045 T TTG 0 2
chr1 453838 T TAC 2 0
chr1 567652 T TG 1 0
chr1 602541 ... (2 Replies)
Hi
I have a file which is tab-delimited. Now, I'd like to print the lines which have "chr6" string in both first and second columns. Could anybody help? (3 Replies)
Hi, I have a tab delimited columnar file where I want to remove lines wherever two particular columns match. so for this file, I want to toss the lines where columns 1 and 2 match:
a a 1 3
a b 2 4
b b 3 5
because there are matches column 1 and 2 in lines 1 and 3, I would like a script to... (2 Replies)
Discussion started by: mikey11415
2 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)