I am facing a strange problem while grepping for a process. Here is the small script that i have written.
It will look for any process running with the parameter passed to the script.
If no process is running it should print appropriate message.
I executed the script with a parameter "abc". There is no process running as "abc". But the output of the script shows otherwise
When i run below command on command prompt, i get a different(desired) output.
Can you please help why the command is behaving differently when run in a shell script & when run on a command line.
I have a file called products.kp which contains, for example,
12345678,1^M
87654321,2^M
13579123,3
when I run the command
cat products.kp| sed -f kp.sed
where kp.sed contains
s,^M,,
I get the output
12345678,1
87654321,2
13579123,3 (5 Replies)
Hi,
I have a problem with a new touch screen controller that I am trying to use on a SCO 3.0 system. THe touch screen controller only wants to talk at 9600baud. I have updated /etc/inittab per the manual and also edited /usr/lib/event/devices to use 9600 baud.
The only way I can get the... (0 Replies)
I have searched far and wide for an explanation for some odd behavior for output redirection and haven't come up with anything.
A co-worker was working on old scripts which have run for years and embedded in their code were output redirects which worked for the script during execution and then... (5 Replies)
Dear guys;
when deleting repeated lines using nawk as below ;
Why the below syntax works?
nawk ' !a++' infile > outfile
and when using the other below syntax the nawk doesn't work?
nawk ' { !a++ } ' infile > outfile
or
nawk '
{
!a++
} ' infile > outfile
BR (4 Replies)
I have the following program:
int main(int argc, char** argv){
unsigned long int mean=0;
for(int i=1;i<10;i++){
mean+=poisson(12);
cout<<mean<<endl;
}
cout<<"Sum of poisson: "<< mean;
return 0;
}
when I run it, I get the... (4 Replies)
It is so till login screen. I mean that when I boot my computer, Ubuntu shows a splash screen with mouse instead of Ubuntu logo and in the login screen it shows XUbuntu login screen... It began when I upgraded to previous kernel, I suppose, but I'm not sure... I can't say that it annoys me very... (6 Replies)
Hi
I have script to to take backup and send mail to a group once a day.
One strange behavior I have observed recently is that most of the time the mail we receive is fine . But someday it just sends out mail without any subject with undisclosed recipients. I dont know how to find the cause... (0 Replies)
I am trying to create an archive using tar. I am specifying a list of directories using the -L option. For testing purposes I created a simple directory structure:
/backup/test
/backup/test/test1
/backup/test/test2
The file specified by the -L option, named files.txt, contains:... (8 Replies)
Hello All,
I have a strange issue. I've created a shell script which connects to RMAN (Oracle Recovery Manager) and executes full DB backup. I then executed this script with nohup and in the background:
$ nohup my_script.sh > logfile.log 2>&1 &The issue is that when I tried to take a look into... (6 Replies)
Discussion started by: JackK
6 Replies
LEARN ABOUT LINUX
zegrep
ZGREP(1) General Commands Manual ZGREP(1)NAME
zgrep - search possibly compressed files for a regular expression
SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code:
(-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the
standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep.
If the GREP environment variable is set, zgrep uses it as the grep program to be invoked.
EXIT CODE
2 - An option that is not supported was specified.
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)ZGREP(1)