Hello,
I am trying to write a formatted report into a file using .ksh script and awk. Here is the command I am trying to run
echo "before awk" ${SRC_SCHEMA}
echo | awk '{printf "%-20s", ${SRC_SCHEMA} }' >>$REPORT_SQL_NAME
I get the following error
before awk ADW
awk: 0602-562 Field $()... (1 Reply)
i have a file and i want to print the second variable and add qoutes to it
i do
awk -F"|" '{print $2}' star.unl.
i get the output xxxxxxx
but i need the variable($2) to be in quotes.like
"xxxxxxx"
how do i do there please (3 Replies)
Hi,
I mainly work with altering columns with awk but now I encountered a problem with dealing with rows.
So what I want to do is only print rows that start with a specific name. For example:
## joe jack john
ty1 3 4
ty1 5 6
ty2 4 7
tym 5 6
tyz 7 9
Basically what I want... (4 Replies)
Hallo,
i have a file which looks like this:
$1 $2 $3
Student1 55 Pass
55 Pass
35 Fail
Student2 55 Pass
55 Pass
35 Fail
i want that the $1 field... (3 Replies)
Hi I'm trying to compare 3 or more files based on similar values and outputting them into 3 columns.
For example:
file1
ABC
DEF
GHI
file2
DEF
DER
file3
ABC
DER
The output should come out like this
file1 file2 file3
ABC ABC (4 Replies)
Hi
I am relatively new to awk so i am getting confused a lot
I am in need of help ... I am trying to append coloumns to the end of line using AWK
I tried using this command
awk -F "," '{for(s=7;s<=217;s++);$s="0";}1' OFS=, sam_sri_out
It is giving me an output like this...... (1 Reply)
Hello, I have a file with nearly 57K lines. I want to filter the lines based on the range of values in a column. For e.g. print lines whose 3rd filed is >=0.02.
Input file:
LOC_Os09g32030 LOC_Os02g18880 0.0200037219149773 undirected NA NA
LOC_Os03g58630 LOC_Os09g35690 ... (1 Reply)
I have a file of 100,000 entries that look like:
chr1 980547 980667 +
chr1:980547-980667
chr1 980728 980848 +
chr1:980728-980848
chr1 980793 980913 +
chr1:980793-980913
I am trying to reformat them to into 5 columns that are tab delineated:
chr1 980547 980667 + ... (3 Replies)
Discussion started by: cmccabe
3 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)