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Execution Problems with bash script

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# 1  
Old 04-09-2011
Java Execution Problems with bash script
Hello,

can someone please help me to fix this script,
I have a 2 files, one file has hostname information and second file has console information of the hosts in each line, I have written a script which actually reads each line in hostname file and should grep in the console file and paste the information in the third file, but not sure, I am not getting the desire o/p in third file it is just a blank file.

and Consoles file has 5000 line and hostname file has 500 line

I was writing these scripts non of them working please suggest.
Code:
#!/bin/bash
while read line
do
        grep -i '$line' /scripting/consoles >> /scripting/output
done < /scripting/hostlist.txt

Code:
#!/bin/bash

/bin/date > /scripting/found.txt
/bin/date > /scripting/notfound.txt

while read line

do
  echo "checking" $line;
  sleep 2
  if [[ `/bin/grep $line /scripting/consoles` != "" ]];
    sleep 1
    then
    echo "$line found in /scripting/consoles file"
    echo "$line" >> /scripting/found.txt
    sleep 1
  else
    echo "$line  not found in /scripting/consoles file"
    echo "$line" >> /scripting/notfound.txt
  fi
done < /scripting/hostlist.txt

Thanks,
Last edited by Scott; 04-09-2011 at 07:08 PM.. Reason: Code tags; indentation
# 2  
Old 04-09-2011
Hi.

From your first script, change:
Code:
grep -i '$line'

to
Code:
grep -i "$line"

(i.e. with double quotes, to allow the shell to expand $line (it won't do that in single quotes)).

In your second script, you have a sleep 1 before then. If you need that, put it after the then of before the if.

Moreover, perhaps post a sample of both the input files (using [code][/code]-tags, please).
This User Gave Thanks to Scott For This Post:
bobby320
# 3  
Old 04-09-2011
Thanks for the reply

but I still have issues, third file is still empty.
and when I tried to debug the script, This is what I notice.
Code:
+ read line
+ grep -i $'pmx1app1\r' /scripting/consoles
+ sleep 1
+ read line
+ grep -i $'drmx1app1\r' /scripting/consoles
+ sleep 1
+ read line
+ grep -i $'pmx1app2\r' /scripting/consoles
+ sleep 1
+ read line

Here is input file entries
hostname file
Code:
pmx1app1
drmx1app1
pmx1app2
drmx1app2

Console file entries
Code:
pmx1app1 tlmcs001.us.net 5050
drmx1app1 tlmcs001.us.net 5051
pmx1app2 tlmcs001.us.net 5052
drmx1app2 tlmcs001.us.net 5053

Last edited by Scott; 04-09-2011 at 07:30 PM.. Reason: Please use code tags
# 4  
Old 04-09-2011
Code:
$ grep -if hostfile console
pmx1app1 tlmcs001.us.net 5050
drmx1app1 tlmcs001.us.net 5051
pmx1app2 tlmcs001.us.net 5052
drmx1app2 tlmcs001.us.net 5053

The output is the same, so perhaps a more representative sample of the data would be helpful?

Code:
$ awk 'NR == FNR { H[$1]=1; next } H[$1]' hostfile console

# 5  
Old 04-09-2011
I think I confused you,
Input files that I provided are just sample file and host file has around 500 lines, each line is hostname and it should search in console file which as 5000 enteries.

and "grep -if" did not worked
# 6  
Old 04-10-2011
Try to pre-process your hostlist like this:
Code:
....
sed 's/\r//' $hfile | while read line ; do 
...
done
...

which will gt rid of those pesky windowsy carriage returns (\r). Otherwise you're grepping for string AND a carriage return, which not matching anything.

I suggest you use variables for filenames instead of hard-coding them and quote the output of grep in case it's more than one word:
Code:
cfile=/scripting/consoles
if [[ "`/bin/grep $line $cfile`" != "" ]] ; then

Last edited by mirni; 04-10-2011 at 08:17 PM..
# 7  
Old 04-10-2011
As suggested I tried to redirect my hostlist file, I was having some errors.....

Code:
[root@localhost scripting]# bash -x final.sh
+ /bin/date
+ /bin/date
final.sh: line 24: syntax error near unexpected token `('
final.sh: line 24: `done < (sed 's/\r//' $hfile)'
[root@localhost scripting]#
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