01-24-2012
Quote:
Originally Posted by
aliyesami
Corona I heard you say twice but iam not understanding where to put quotes can you please show me ?
There's only one place in your entire line that any single quotes are used.
Those are the ones I am talking about, the ones that need to be replaced with double-quotes.
You also need to change any "
inside your perl with \".
10 More Discussions You Might Find Interesting
1. AIX
Hi all,
I am trying to set up some variables in a shell script. The variables contain values of various paths needed to run a java module. The problem is the variables dont seem to be setting at all.
here is what i am trying to do :
JAR_HOME=/home/was5/bdcms/scheduledjobs/lib
export... (1 Reply)
Discussion started by: rpandey
1 Replies
2. UNIX for Dummies Questions & Answers
The following seems quite basic but does not seem to work. Anybody know why?
$ g=1
$ echo $g
1
$ echo abc$g
abc1
$ abc$g=hello
ksh: abc1=hello: not found
$ echo $abc1
ksh: abc1: parameter not set
It works when I specify the full variable name
$ abc1=hello
$ echo $abc1
hello
... (2 Replies)
Discussion started by: Chong Lee
2 Replies
3. Shell Programming and Scripting
Good morning!!
Im trying to practice withe Perl and sorting variables is not going good at all!
#!/usr/bin/perl
$username = $ENV {'LOGNAME'};
print "Hello, $username\n";
I want to add sort and 'mail' and 'home'. This below is what I have came up with,but of course its not working.
... (5 Replies)
Discussion started by: bigben1220
5 Replies
4. Shell Programming and Scripting
Dear all, today I'm scratching my head with a simple (I believe) issue.
Working with date is quite simple, so if I Need to add some seconds to current time, I'll use:
date --date='+30 seconds' +"%Y-%m-%d %H:%M:%S"But, how to pass the value to add from a variable? I tried the following without... (2 Replies)
Discussion started by: Lord Spectre
2 Replies
5. Shell Programming and Scripting
I don't fully understand variables in perl.
If we have a variable defined like this "my $number = 1" then this is called a lexical variable? But if you define this at the top of a script then why isn't it a global variable because it would be available throughout the file?
Sorry if this is... (1 Reply)
Discussion started by: P3rl
1 Replies
6. Shell Programming and Scripting
Dear all,
I have two files like this
file1
A B
C D
E F
file2
1,2
3,4
5,6
I want this output
output_expected
A B 1,2
C D 3,4
E F 5,6 (3 Replies)
Discussion started by: valente
3 Replies
7. Shell Programming and Scripting
Hello,
I have a (basic I guess) problem with bash scripting.
In the command line, this piece of code returns nothing (a blank line), and if I'm not worng it should return 3.
set VAR = "3"
echo $VAR
if I do this (also in command line), a zero is returned:
set VAR = 3
printf "%d"... (4 Replies)
Discussion started by: jlseminara
4 Replies
8. Shell Programming and Scripting
Example:
while read line
do
stat -c %G $line
done < somefile.txtThe problem is that inside somefile.txt lines can have any symbol allowed as file name, like (). Even with spaces, it splits the words.
somefile.txt:dira/my first jump.avi
dirb/surf video (1080p).mkv (2 Replies)
Discussion started by: Tribe
2 Replies
9. Programming
I have reviewed many examples on-line about running another process (either PERL or shell command or a program), but do not find any usefull for my needs way. (Reviewed and not useful the system(), 'back ticks', exec() and open())
I would like to run another PERL-script from first one, not... (1 Reply)
Discussion started by: alex_5161
1 Replies
10. UNIX for Beginners Questions & Answers
If i do below command in unix prompt which static values (ie 27..97), it is working fine and gives desired output
>ls -d $WORKDIR/batch/somefilename_{27..97}.* 2>/dev/null
somefilename_27.sometxt
somefilename_28.sometxt
somefilename_29.sometxt
..
somefilename_97.sometxt
But if i want... (2 Replies)
Discussion started by: haiderali
2 Replies
XARGS(1) General Commands Manual XARGS(1)
NAME
xargs - construct argument list(s) and execute utility
SYNOPSIS
xargs [ -t ][[ -x ] -n number ][ -s size ][ utility [ arguments... ]]
DESCRIPTION
The xargs utility reads space, tab, newline and end-of-file delimited arguments from the standard input and executes the specified utility
with them as arguments.
The utility and any arguments specified on the command line are given to the utility upon each invocation, followed by some number of the
arguments read from standard input. The utility is repeatedly executed until standard input is exhausted.
Spaces, tabs and newlines may be embedded in arguments using single (`` ' '') or double (``"'') quotes or backslashes (``''). Single
quotes escape all non-single quote characters, excluding newlines, up to the matching single quote. Double quotes escape all non-double
quote characters, excluding newlines, up to the matching double quote. Any single character, including newlines, may be escaped by a back-
slash.
The options are as follows:
-n number Set the maximum number of arguments taken from standard input for each invocation of the utility. An invocation of utility will
use less than number standard input arguments if the number of bytes accumulated (see the s option) exceeds the specified size or
there are fewer than number arguments remaining for the last invocation of utility. The current default value for number is
5000.
-s size Set the maximum number of bytes for the command line length provided to utility. The sum of the length of the utility name and
the arguments passed to utility (including /dev/null terminators) will be less than or equal to this number. The current default
value for size is ARG_MAX - 2048.
-t Echo the command to be executed to standard error immediately before it is executed.
-x Force xargs to terminate immediately if a command line containing number arguments will not fit in the specified (or default)
command line length.
If no utility is specified, echo(1) is used.
Undefined behavior may occur if utility reads from the standard input.
The xargs utility exits immediately (without processing any further input) if a command line cannot be assembled, utility cannot be
invoked, an invocation of the utility is terminated by a signal or an invocation of the utility exits with a value of 255.
The xargs utility exits with a value of 0 if no error occurs. If utility cannot be invoked, xargs exits with a value of 127. If any other
error occurs, xargs exits with a value of 1.
SEE ALSO
echo(1), find(1)
STANDARDS
The xargs utility is expected to be IEEE Std 1003.2("POSIX") compliant.
June 6, 1993 XARGS(1)