Hey guys, I have a file that contains the following:
366 K
364 Q
12 UB
7 INC. P
4 Law
2 LAMB
2 High
1 QEG
1 OF
1 LC
1 B
As you can see, it's already sorted by numerical order, how do I sort it again, breaking the ties by using the alphabetical order of the second column, but... (2 Replies)
Looking for help for sort, I learned that for sorting numbers I use:
sort -n
but it seems that that is not enough when you have numbers like 0.2000E+7 for example, sort -n will not worry about the E+7 part, and will just sort the numbers like 0.2000.
Exapmle:
cat example.txt
.91000E+07... (9 Replies)
Hello,
okey so my script is using 4 variables that are either empty or numbers in the following format:
NUMBER_1 NUMBER_2 NUMBER_3 NUMBER_4
So they're basically separated by a space and I need to echo the lowest number, so far I've been doing it like this:
echo "2 3 1 3" | tr " "... (6 Replies)
I would like to know how to sort version numbers, using bash or perl. I would like to sort file names that are program names with version numbers and extensions, such as hello-0.2.3.tar.gz and hello-0.10.3.tar.gz.
Version numbers of computer programs do not comply with the mathematical rule... (3 Replies)
Although i tried multiple option i couldn't find a way to get the rigt ouput.
Say i have the following data
cat file.txt
C request
C response
C request
C response
The output should look like (9 Replies)
I have files like this:
1
3
4
6
14
3
6
I want to extract the highest number. I have tried using
cat filename | sort
but then 9 would become higher than 14.
So how do I sort? (1 Reply)
I have a file which has the following data :-
how can I sort the data in descending order .
My files may have the first column with 1 to 10000 numbers .I need to arrange them in descending order .
Thanks (2 Replies)
Hi,
I've got two arrays
1 3 5 7
2 4 6 8
and i need to write a shell script to get the output 1 2 3 4 5 6 7 8 without using sort or bubble sort. (1 Reply)
I want to sort my data first by the 2nd field then by the first field.
I can't use sort -V because I don't have gnu sort and cannot install one.
How do I go about this?
Input:
G456 KT1 34
K234 KT10 45
L2 KT2 26
H5 LAF2 28
F3 LAF2 36
Output:
G456 KT1 34
L2 KT2 26
K234 KT10 45
F3... (14 Replies)
Discussion started by: aydj
14 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)