Differences between 2 Flat Files and process the differences
Hey Guru
Sorry for the confusion but
what I meant to ask was that
by this you store first 4 columns of the whole file(all rows)
and then you move to the next
where you store the first 4 columns of each row of second file in x and compare them against the all rows(but first 4 columns only) one by one
what does this 1' means and after executing this awk script the final
file that we will have only 4 columns or the whole structure of the file
(it should compare only the first 4 columns but in the final file should have all 6 columns)
Thanks
J
Moderator's Comments:
Please use code tags.
Last edited by Scott; 07-17-2010 at 01:53 PM..
Reason: Code tags
Hi,
"diff" command takes two file names as arguements and gives the difference between the two.
How do I get the number of differences between two files ???
(Excluding whitespaces).
Don't ask me to count number of lines produced by "diff".
Thanks in advance,
Sharath (4 Replies)
All,
I have two csv files, the format of which are exactly the same.
I would like to find differences between the two files but would like to identify the difference as opposed to just printing a different line.
For exmaple
File 1
xxx,yyy,zzz,1,2,3
111,222,333,xxx,yyy
... (4 Replies)
Hello, I'm having trouble to read two txt files, they have employee records line by line, I need to do the reading of a file that is old and compare it with the new base in the new file, deleting the lines in old file, then add the new file data from the old file and write to the database manager.... (5 Replies)
Hi everyone,
I know that's a deep treated issue but I'm actually not able to find the solution. I have 2 plain text files with ~ 2000 rows and ~5 columns. The first column of the shortest file (f1) is fully contained by the first column of the biggest one (f2), but only that column. I want to... (6 Replies)
Hi,
I'm trying to create a script to catch a process which is consuming high CPU which I have pretty much done but it's just finding the correct place to pull the current CPU for that process.
When viewed in Topas it's consuming 99.*% cpu
But if I try using
ps avg or ps -eo pcpu
... (5 Replies)
Hi
*
I have two text files which has the file size, timestamp and the file name. I need to compare these two files and get the differences in the output format. Can anyone help me out with this.
*
cat file1.txt
*474742 Apr 18* 2010 sample.log
*135098 Apr 18* 2010 Testfile
134282 Apr 18* 2010... (7 Replies)
I have 2 files that need to be compared. Email the differences if something is different and don't email if nothing is different. One or both of the files could be empty. One or both could have data in them.
example files
backup.doc.$(date +%y%m%d) file size is 0
backup.doc.$(TZ=CST+24... (4 Replies)
Hello All,
Requirement is to compare 2 XML files and see if there are any differences but from some of the providers We are receiving UTF-16 formatted XML file with no end of line as shown below.
Excerpt of data file:
ÿþ<^@?^@x^@m^@l^@ ^@v^@e^@r^@s^@i^@o^@n^@=^@"^@1^@.^@0^@"^@... (11 Replies)
Discussion started by: Ariean
11 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)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 v5.8.4 2005-05-03 SHELL-QUOTE(1p)