I have a new issue actually,
So what I want to do is compare two files such as:
I want it to ignore difference with lines starting with A and only comparing lines starting with X for example.
I know that I can filter out all the A lines, but I need to keep them in the files as I have to look back at that line A that was preceding the line X with the difference.
So the output should be like, the two files differs at line 5. not at line 1.
Hi,
I have a challenging task,in which i have to find the duplicate files by its name and size,then i need to take anyone of the file.Then i need to open the file and find for more than one pattern and count of that pattern.
Note:These are the samples of two files,but i can have more... (2 Replies)
Hi,
I have two files A.txt and B.txt. And i have the following attributes in both the files.
<date and time> <a unique id>
For eg:
<2007 May 30 20:29:36:034 GMT> <ID1> in A.txt
<2007 May 30 20:42:36:038 GMT> <ID1> in B.txt
Now, i need to find the time difference... (0 Replies)
Hi,
i'm trying to compare two directories in Unix.
I need a recursive search ie my shell script should also compare common files in those two directory and so on...
any clues.. ?? (2 Replies)
Dear All,
I have requirement like this:
I have 2 camma seperated files
file1:
1,aaa,bbb,ccc,
2,bbb,ccc,ddd,
3,ccc,ddd,eee,
file2:
1,aaa,bbb,ccc,
2,bbb,ddd,ddd,
3,ccc,ddd,eee,
my requirement is I should get message in the out put like:
There is a difference in 3 rd filed in... (2 Replies)
Hi,
I have two files
one with 12486 lines
second one with 13116
As per the comparsion between two files the count have 630 difference
I used diff command to find the difference between two files but it's not understandable
could any one suggest any command to get 630 records in a new... (4 Replies)
Hi,
My date is coming as
STARTDATE=Sun Jul 15 00:34:23 2012
ENDDATE=Sun Jul 15 00:50:04 2012I want difference between these two dates,anyone's helps will be appriciated.
Thanks
Prasoon (3 Replies)
I have a file that has multiple lines, of grouped data, that typically all have the same values in the 1st field, however, I would like to search the 1st field for any differences and set a flag to use in an "if" statement to run some other routine.
An example of the typical file is below,... (2 Replies)
Legends,
I have a requirement to run the script exactly after one hour of completion of dependent script.
Eg: Script B should run after one hour on the completion of Script A.
I got the time stamps using following variables. these scripts runs in autosys
> DATE=`date +%H:%M`
>... (4 Replies)
Hi,
Can anybody help me in finding the difference between two array elements with the help of code pls.
purge=("Purge Concurrent Request and/or Manager Data" "Purge Signon Audit data" "Purge Obsolete Workflow Runtime Data" "Purge Logs and Closed System Alerts")
purge_1=("Purge Obsolete... (3 Replies)
Hi,
I have two files which look like this
cat waitstate.txt
18.2
82.1
cat gostate.txt
5.6
5.8
6.1
6.3
6.6
6.9
7.2
7.5 (4 Replies)
Discussion started by: jamie_123
4 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)