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Just using your example,
egrep "idxxx1|idxxx3" file | awk '{print $1 "\t" $4}' | awk -F';' '{print $1}'

Step1:
$ egrep "idxxx1|idxxx3" file
$ idxxx1 something something ...

Hello,

I have a problem with DB handling in Perl.

Module 1 ---calls--> Module 2

Module 1 creates a DB Connection and passes the DB handle to Module2.

In module 2, I perform some Selects...

Simply do this:
grep -v XYZ > file_without_XYZ

1. while read line
2. do
3. x=`echo $line | cut -d "," -f4`
4. cd $x
5. plant=`echo $line | grep $x | cut -d "," -f1 | head -1 `
6. done < $master_file


the 3rd line does the following:...

grep -v option inverts the selection....i.e all the lines but those matching are printed.

Hence "grep -v '#'" will print all the lines which do not include a '#'.

Might be u will have to update this as per your needs...........


old_cnt=0
while true
do
cur_cnt=`last | grep "still logged in" | wc -l`
if [ $old_cnt -ne $cur_cnt ]
then
...

try
chmod 554 /bin/ps


Provided u have root privledges for this command

#!/bin/sh

i=0
cat input | while read line
do
case $i in
0) str1=`echo $line | awk -F'#' '{print $2}'`;;
1) str2=`echo $line | awk -F'ON' '{print $2}'`;;
2) str3=`echo...

HI,
Does this help??

for files in `ls refresh*.dat`; do max_file=`echo $files | awk -F'refresh_' '{print $2}' | sort` ;done; echo refresh_$max_file;

Hi Nirbhay
I think this "0" is the return from the system("cat add") command.

Try this:
awk '{ if ( NR == 5 ) { print system("cat add") 1>/dev/null } else { print }}' input

redirecting...

Hi Joyeg....

Just try this out:

#!/bin/bash

declare -a name_arr
declare -a size_arr

i=0
for files in `ls`
do
name=`ls -l $files | awk '{print $3}'`
size=`ls -l $files | awk...

Hi All,

int ioctl(int d, int request, ...);

Can somebody tell me how does ioctl decides the input parameter: "request".

Sometimes, its SNDCTL_TMR_TIMEBASE or TCGETS
or FIONREAD...etc.
...

To use the Shell variables, use "-v i.e. Variable" option in awk.

Do this:
fname=File$i
mypid=`ps aux | awk -v var="$fname" 'BEGIN /var/ && !/awk/ { print $2 }'`

Note, that your shell...

HI All,

NET::FTP->new($server, DEBUG=>1);

I need to get all the Debug Messages in an array or a file....

Please suggest!!

Well return works amazingly well.

Thanks a lot.

Mods....please close this thread as the answer given is the best!!

The best way to use maths function is by "bc" command. It takes care of integer and float both.
Usage: echo the maths expression and pipe it to bc.
add:
===
$ echo "2+2" | bc
$ 4
$ echo...

Hello,
I have written a script (say chld.sh). its structure is as follows:

------------------------
#!/bin/sh

usage()
{
echo "chld.sh <param1> <param2>"
exit 0
}

chk_param_1()...