01-23-2011
your problem is that you don't quote $line.
Use More Quotes!
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i have single column which is starting with same string(many number of rows)
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laknar
std
mes
23
55
laknar
isd
phone no
address
amount
99
I have to convert above like below.
laknar|std|mes|23|55
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2. Shell Programming and Scripting
Hi all,
I need to convert this file having just one column into two column file
current file:
a
15
b
21
c
34
d
48
e
10
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b 21
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3. Shell Programming and Scripting
Can somebody help me in solving this..
Input data is like
0 A
1 B
2 C
3 D
0 A1
1 B1
2 C1
3 D1
0 A2
1 B2
2 C2
3 D2
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A B C D
A1 B1 C1 D1
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Hi,
Can anyone suggest quick way to get desired output?
Sample input file content:
A 12 9
A -0.3 2.3
B 1.0 -4
C 34 1000
C -111 900
C 99 0.09
Output required:
A 12 9 -0.3 2.3
B 1.0 -4
C 34 1000 -111 900 99 0.09
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Hi All,
My requisite is to split a single column of phonemes seperated by spaces into multiple rows.
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a
dh
u
th
a
qn
ch
A
v
U
r
k
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How to change the uploaded weekly file data to the following format?
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Convert Single column to multiple rows
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Hi,
I want to convert a single row values to multiple rows, but the no. of rows are not fixed.
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abc-def-lmn-mno-xyz
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Hi .. anyone can you help me ?
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mtu 9212
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I have a large csv dataset like this : A value1
A value2
A value3
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B value3
C value1
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C value1 value2 value3
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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)