12-31-2010
At first glance, the script looks fine to me, so the easiest way of tracking what's happening would be using activating bash debugging utility just prior to that specific line of code: "set -x".
This will cause every subsequent standard output to come output (each line) to start with a "+" character. The magic is that, it allows you to see exactly what is taking place within you coding sequence. In other words, what variables are correctly assigned or not and many more details.
It's a very helpful debugging utility.
have fun!
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi
Can someone please tell me what is wrong with this (ksh)..
if + ]] then
echo ${COMP_TEMP}
fi
What i need here is, say if the variable is a 1 or 2 digit number, then execute the if loop. Basically the variable can either be 1-30 or some other character sequence say '?', '&&'... (4 Replies)
Discussion started by: psynaps3
4 Replies
2. Shell Programming and Scripting
set -A arr a1 a2 a3 a4
# START
ssh -xq $Server1 -l $Username /usr/bin/ksh <<-EOS
integer j=0
for loop in ${arr}
do
printf "array - ${arr}\n"
(( j = j + 1 ))
j=`expr j+1`
done
EOS
# END
=========
this is not giving me correct output.
I... (5 Replies)
Discussion started by: reldb
5 Replies
3. Shell Programming and Scripting
I'm trying to compare the last octet of an IP to a regex:
IP=$(ifconfig eth0 | grep inet | awk -F: '{print $2}' | awk -F. '{print $4}' | awk '{print $1}')
if ]; then
echo "GOOD: Correct IP range for server"
else
echo "ERROR:... (6 Replies)
Discussion started by: s_becker
6 Replies
4. Shell Programming and Scripting
Hi All,
I am comparing two strings inside an if condition if the strings are same then it should go inside the loop else it should execute code given in else part.
But there is a but inside my script
Even if the if condition is true
it is not going inside the loop also it is executing... (4 Replies)
Discussion started by: usha rao
4 Replies
5. Shell Programming and Scripting
I'm trying to understand if it's possible to create a set of variables that are numbered based on another variable (using eval) in a loop, and then call on it before the loop ends.
As an example I've written a script called question (The fist command is to show what is the contents of the... (2 Replies)
Discussion started by: DeCoTwc
2 Replies
6. Shell Programming and Scripting
Hi,
First post, so I hope someone can help me with this weirdness :)
I have a number files with some rows of information I want to extract, at the same time I want to add to a string some details from the file. I have found two different ways of looping over rows in a file, but one method... (5 Replies)
Discussion started by: LostInTheWoods
5 Replies
7. Shell Programming and Scripting
Hi,
In the code included below, the string comparision is not working fine. Please help
while (( find_out >= i ))
do
file=`head -$i f.out|tail -1`
dir=`dirname $file`
cd $dir
Status=""
if ; then
Status=`cvs -Q status... (3 Replies)
Discussion started by: sudvishw
3 Replies
8. Shell Programming and Scripting
I'm a beginner in shell scripting (I'm using ksh). I'm manipulating some files and I'm using set -A to transform each read line into a numeric array.
However, inside the 'for' loop the options of set (ie '-A') are not recognized (the vi editor doesn't highlight it and it doesn't work).
Where... (4 Replies)
Discussion started by: kasumlolla
4 Replies
9. Shell Programming and Scripting
check_deplver ()
{
dir=/abc/def/ghi
if ssh -o StrictHostKeychecking=no $1 "" 2> /dev/null
then
echo " output is "
ssh -o StrictHostKeychecking=no $1 "ls -lrt $dir | grep -i abc" 2> /dev/null
else
echo " directory not presnt"
fi
}
This is not working.
But... (7 Replies)
Discussion started by: NarayanaPrakash
7 Replies
10. Shell Programming and Scripting
I have the logic below to look up for matches within the columns between the two files with awk.
In the if statement is where the string comparison is attempted with ==
The issue seems to be with the operands, as
1. when " '${SECTOR}' " -- double quote followed by single quote -- awk matches... (1 Reply)
Discussion started by: deadyetagain
1 Replies
LEARN ABOUT CENTOS
grub-render-label
GRUB-RENDER-LABEL(1) User Commands GRUB-RENDER-LABEL(1)
NAME
grub-render-label - generate a .disk_label for Apple Macs.
SYNOPSIS
grub-render-label [OPTION...] [OPTIONS]
DESCRIPTION
Render Apple .disk_label.
-b, --bgcolor=COLOR
use COLOR for background
-c, --color=COLOR
use COLOR for text
-f, --font=FILE
use FILE as font (PF2).
-i, --input=FILE
read text from FILE.
-o, --output=FILE
set output filename. Default is STDOUT
-t, --text=STRING
set the label to render
-v, --verbose
print verbose messages.
-?, --help
give this help list
--usage
give a short usage message
-V, --version
print program version
Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.
REPORTING BUGS
Report bugs to <bug-grub@gnu.org>.
SEE ALSO
The full documentation for grub-render-label is maintained as a Texinfo manual. If the info and grub-render-label programs are properly
installed at your site, the command
info grub-render-label
should give you access to the complete manual.
grub-render-label (GRUB) 2.02-2ubuntu8.3 July 2018 GRUB-RENDER-LABEL(1)