02-06-2007
Does anybody have a solution?
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Hi guyz
Excuse me for posting simple question
I tried join and sort and other perl commands but failed
I have 2 files. 1st file contain single column with around 6000 values (rows).
Second file contain 2 columns 1st column is the same column (in 1st file) but randomly ordered and second... (5 Replies)
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Hello,
My apologies if this has been posted elsewhere, I have had a look at several threads but I am still confused how to use these functions. I have two files, each with 5 columns:
File A: (tab-delimited)
PDB CHAIN Start End Fragment
1avq A 171 176 awyfan
1avq A 172 177 wyfany
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Been tearing my hair out trying to work out how to make the -t option in the join command work.
Joining two files on col 1; columns in both files are separated by tabs.
file1:
2010/02/01-00:00 10.63
2010/02/01-00:06 10.63
2010/02/01-00:12 10.61
2010/02/01-00:18 10.58
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So I want to join two files that have a lot of rows
The file named gen1 has 2 columns:
head gen1
1008567 0.4026931012
1119535 0.7088912314
1120590 0.7093805634
1145994 0.7287952590
1148140 0.7313924434
1155173 0.7359550430
1188481 0.7598914553
1201155 0.7663406553
1206921... (2 Replies)
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Dear all,
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file1:
Toronto:12439755:1076359:July 1, 1867:6
Quebec City:7560592:1542056:July 1, 1867:5
Halifax:938134:55284:July 1, 1867:4
Fredericton:751400:72908:July 1, 1867:3
Winnipeg:1170300:647797:July 15, 1870:7
Victoria:4168123:944735:July 20, 1871:10
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I have a weird issue going on with the join command...
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file1:
/groupspace/ccops/cmis/bauwkrcn/commsamp_20140315.txt,1
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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)