this is a script to extract data from a logfile for a particular date and time but gives some err in line no. 11,12,13,14 i guess it has some problem with expr command and seq.
Last edited by radoulov; 07-03-2008 at 06:52 AM..
Reason: please use code tags
I would like to extract the following fields from the text file attached. I copied the contents from a pdf file and pasted them into the text file so I can use awk to extract them. The layout is as listed below.
name1,name2,name3,name4,Title,designation,nationality,dob,
national ... (1 Reply)
Hi,
How can I debug an awk script?
I know that set -x can be used to debug a script. But this will not suite for awk scripts.
Can anyone help me?
Thanks in advance,
Chella (2 Replies)
Hi all,
i have two simple questions here...
1. i want to know that how to debug the UNIX shell script?
2. is there any way to handling the exception in UNIX shell script like oracle exception handling?
Please provide me those details it would be great help/
Thanks and Regards,
MPS... (3 Replies)
Hi All,
I have a script which is based on calculating current time
The script looks like this:
whenever i try to run the script it gives me error:Please advice wherther i have made mistake with if condition or with for loop??
The code :
set -x
#!/usr/bin/ksh
set -x... (7 Replies)
Hi,
When i run the script ./script.sh sun, this give me no output, it should give me the list of file.
If i run the script without the argument it should send me echo inside usage().
What is the problem?
please help
-Adsi
#!/bin/sh
ROOT_PATH=/net/icebox/vol/local_images/spins... (2 Replies)
Hi,
I have this script, searches and sets variables, then searches and sets more variables from multiple files.
I'd need to debug it a bit.
#!/bin/bash
egrep $1 `find | grep MAGT` >/tmp/resRA-$$
thread=`sed -n '/{0x/ {s/^.*{0x\(*\).*/\1/p;q}' /tmp/resRA-$$`
tag=`sed -n '/Tag=/... (5 Replies)
Hi I am relatively new in shell scripting Below is the code which i developed but for some reason, it keeps giving me error:
/apps/bss/BatchProg/at1/batch/scripts/ksh/TBATLC02.ksh: syntax error at line 41 : `then' unmatched
#!/usr/bin/ksh... (4 Replies)
Hello,
is it possible to debug a script that is already running "on-demand"?
Somehow a command like "set -x" but once you've executed the script. And another one to disable debugging?
Thank you (0 Replies)
Hi,
I am trying to get squid up and running using a redirector process, and every time I try to load a web page, squid fails miserably.
Can some one with perl and squid knowledge take a look at these codes and tell if something is wrong here.
#!/usr/bin/perl
#
$| = 1;
@endings = qw/... (0 Replies)
How can I debug this script?
I want to know what it is doing or not doing?
#!/bin/bash
#
#
if ; then
# Do the thing you want before suspend here
echo "we are suspending." > /tmp/systemd_suspend_test.txt
elif ; then
# Do the thing you want after resume here
echo "and we are... (21 Replies)
Discussion started by: drew77
21 Replies
LEARN ABOUT ULTRIX
expr
expr(1) General Commands Manual expr(1)Name
expr - evaluate expressions
Syntax
expr arg...
Description
The arguments are taken as an expression. After evaluation, the result is written on the standard output. Each token of the expression is
a separate argument.
The operators and keywords are listed below. The list is in order of increasing precedence, with equal precedence operators grouped.
expr | expr Yields the first expr if it is neither null nor 0. Otherwise yields the second expr.
expr & expr Yields the first expr if neither expr is null or 0. Otherwise yields 0.
expr relop expr The relop is one of < <= = != >= > and yields 1 if the indicated comparison is true, '0' if false. The comparison is
numeric if both expr are integers, otherwise lexicographic.
expr + expr
expr - expr
Yields addition or subtraction of the arguments.
expr * expr
expr / expr
expr % expr
Yields multiplication, division, or remainder of the arguments.
expr : expr The matching operator compares the string first argument with the regular expression second argument; regular expres-
sion syntax is the same as that of The (...) pattern symbols can be used to select a portion of the first argument.
Otherwise, the matching operator yields the number of characters matched ('0' on failure).
( expr ) parentheses for grouping.
Examples
The first example adds 1 to the Shell variable a:
a=`expr $a + 1`
The second example finds the file name part (least significant part) of the pathname stored in variable a,
expr $a : '.*/(.*)' '|' $a
Note the quoted Shell metacharacters.
Diagnostics
The command returns the following exit codes:
0 The expression is neither null nor '0'.
1 The expression is null or '0'.
2 The expression is invalid.
See Alsoed(1), sh(1), test(1)expr(1)