When I try this with the sample input given in this thread, I get the output:
which doesn't seem to be even close to what was requested. How can taking pairs of input lines (without verifying that the 1st line in a pair starts with TT:) do what was requested?
Hi Don, there are unwanted spaces at the end of the lines, that is effecting the command.
I would suggest you remove the unwanted spaces and try again
Hi all,
Have the following code(1) producing the results(2 & 3).
Would like to know if there is a way to format the two reports created in a similar fashion.
IE - The first is formatted nicely as a result of the echo "$xmpbdate $xavgs" >> $xmpbrpt
However when I attempt to do the same on... (7 Replies)
Hi guys ,
I have a file which contains following string.(filename tempdisplay)
(location 0.0.0.0:5900)
i needed to write a script which will extract the string that comes after
0.0.0.0 i.e the string :5900.
I have used following method to extract the string :5900 .Is it a preferred way of... (4 Replies)
I have a following string.
"machine=IFLMUD5HP0581&group1=Stop"
I have created 2 variables namely machine and action.
machine should contain
IFLMUD5HP0581
action should contain
Stop
How do i write a script for the same. (7 Replies)
I have a file called abc.txt which has following contents.
10.180.8.231=31608
10.180.8.232=29011
10.180.8.233=31606
10.180.8.234=40501
10.180.8.235=32591
10.180.8.236=31605
10.180.8.237=30561
10.180.8.238=14231
How would i find a ip address having maximum number of ram available.
Here... (2 Replies)
How would i write a script which will add a following content to a file.
File Before running script.
acpi = 1
apic = 1
builder = 'hvm'
device_model = '/usr/lib/xen/bin/qemu-dm'
disk =
File After running the script.
acpi = 1
apic = 1
builder = 'hvm'
device_model =... (5 Replies)
I am executing the following command:
sort file1.txt | uniq -c | sort -n > file2.txt
The problem is that in file 2, I get leading spaces, Like so:
1 N/A|A8MW11
8 N/A|ufwo1
9 N/A|a8mw11
10 900003|smoketest297688
10 N/A|a9dg4
10 danny|danni
12... (5 Replies)
Hi,
Can anyone tell me how i can convert all tab spaces inside a script to 4 spaces through another script.
Also i need to find if all the quotes are matching and ended properly. Any idea whould be of great help.
Many thanks! (3 Replies)
I am using FORTRAN 90 on AIX 5.3 and need to output my data to a tab-delimited file. It must have actual tabs, and I cannot figure out a way to make it work. The resulting file will be imported into another application (quickbooks) as an .iif file....for some reason, it needs the tabs; spaces do... (2 Replies)
I have the output like below:
DEV#: 9 DEVICE NAME: hdisk9 TYPE: 1750500 ALGORITHM: Load Balance
SERIAL: 68173531021
==========================================================================
Path# Adapter/Path Name State Mode Select Errors
0 ... (4 Replies)
Hi All,
Need your help in resolving the below issue.
I've a file called "data.txt" with the below lines:
TT: <tell://me/sreenivas>
<tell://me/100>
TT: <tell://me/sudheer>
<tell://me/300>
TT: <tell://me/sreenivas>
<tell://me/200>
TT: <tell://me/sudheer>
<tell://me/400>
... (3 Replies)
Discussion started by: raosr020
3 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)