hi
i need to select a few columns of two txt files and write it to a new file. there is one common field for both of these files.
plz help me in this
thanks in advance (4 Replies)
Hi There,
I am new to UNIX. requirement is merging all text files from one folder in the order which they have received.
EX: under /Test folder files received in certain intervals.
abc.txt @ 1:00 AM
123.txt @ 2:00 AM
xyz.txt @ 4:00 AM
.
.
.
456.txt @ 10:00 PM
so need to develop a... (3 Replies)
Hi guru's :)
I am new to UNIX. requirement is merging all text files from one folder in the order which they have received.
EX: under /Test folder files received in certain intervals.
abc.txt @ 1:00 AM
123.txt @ 2:00 AM
xyz.txt @ 4:00 AM
.
.
.
456.txt @ 10:00 PM
... (4 Replies)
Hello,
I am trying to merge data from two text files. One file (File1) contains a listing of data which includes the trial number in Column 5, while the other text file (File2) contains what category the trial belongs to.
Here is a snippet of what File1 looks like.
1 Arrow_ST 9.738 0.905... (2 Replies)
Hi All,
I have two text files containing space delimited columns. The first file contains 9 columns and the second one contain 3 columns. I want to copy the 3 coloumns from the 2nd file and paste them in 1st file after 9 coloumns.
Ex.
File1.txt contains 9 coloumns
C1 C2 C3 C4 C5 C6 C7 C8 C9... (6 Replies)
So I have two text files. The first one looks like this:
refsnp_id chr_name chrom_start
1 rs1000000 12 126890980
2 rs10000010 4 21618674
3 rs10000012 4 1357325
4 rs10000013 4 37225069
5 rs1000002 3 183635768
And the second one looks like this:
AUC rs1000000 0.03 0.1240
AUC ... (4 Replies)
I have two text files. One has two columns and looks like below:
rs# otherallele_freq
rs10399749 0
rs4030303 0
rs4030300 0
rs940550 1.000
rs13328714 0
rs11490937 0
rs6683466 0
rs12025928 1.000
rs6650104 0
rs11240781 0... (5 Replies)
Hi,
I have two text files that I would like to merge/join. I would like to join them if the first columns of both text files match and the second column of the first text file matches the third column of the second text file.
Example input:
First file:
1334 10 0 0 1 5.2
1334 12 0 0 1 4.5... (4 Replies)
Hey everybody,
I am new here and already a question to ask, I just recently started some bioinformatic work for my PhD so I am slowly learning
Anyway, here is my problem, I have two text files, one contains the complete data file with 43000 genes and their read counts for all my samples... (1 Reply)
Discussion started by: ant55
1 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)