Hi,
I need to extract information from a 4 GB file based on the following conditions:
1) Check for the presence of a set of account numbers
Each account number is present along with other information within
a PAGESTART and PAGEEND.
The file looks like this:
PAGESTART
ACCOUNT NO 123... (6 Replies)
I wanna grep for a pattern logs 1 2 & 3 within a folder containing 100 logs
grep "test" /folder/log1 /folder/log2 /folder/log3
The above command will work fine
but is there any command like
grep "test" /folder/log1, log2, log3 or something similar (4 Replies)
Hi All,
Can i use find command to know given date files? If yes, then please let me know the syntax for the same.
Thanks in advance for your postive responses
Regards,
Bachegowda (3 Replies)
I'm learning UNIX on my mac (BSD), using a manual. I'm trying to figure out the grep command, and am getting something wrong. I've opened one of my files in NeoOffice and am looking for a string, the phrase 'I am writing.' I've been to some sites to get the proper syntax, and from what I can see... (5 Replies)
Hello,
I'm working on unix with grep (GNU grep) 2.5.1. I'm going through some of the newer regex syntax using Regular Expression Reference - Advanced Syntax a guide.
ls -aLl /bin | grep "\(x\)"
Which works, just highlights 'x' where ever, when ever.
I'm trying to to get (?:) to work but... (4 Replies)
Alrighty, I'm trying to get a perl script going to search through a bunch of files for me and compile it to a single location. I am currently having troubles on just getting the grep to work.
Here is what I currently have:
#!/usr/bin/perl
open (LOG, "errors.txt") or die
("Unable to open... (2 Replies)
i'm trying to find out how to find in my directory and subdirectories a certain file. once i find that file, i need to select that folder and copy it the location or output it to a new text file.
i know how to find the file by using
find . -name \*.pl | sort -n
but idk how to select... (9 Replies)
Hi Folks,
I am trying to dig through about 100 directories that have 1 or 2 .jpg images stored in each. I want to copy the .jpg to another file in the root directory. Really my ultimate goal is not to have to dig down into each directory to copy the images individually. I thought I could use a... (2 Replies)
My current code is:
user@ubuntu:~/Desktop$ grep -e "\(packaged by\)\|\(employee\)\|\(file name\)\|\(Total Data (MB) Read\)\|\(Begin Time\)" log.txt
packaged by = Ron Mexico
employee = Michael Vick
file name = Mike_Vick_2011.bat
Total Data (MB) Read: 11.82
Begin Time: 6/13/2011... (8 Replies)
Dear Team
/app/Appln/logs/
echo Session used server are 'grep -i pid|grep -i session | cut -d'.' -f1 | awk '{print $9}' | sort | uniq'
Output -
lxserver01
lxserver02
lxserver03
When I grep session pid in logs server details I can see above distinct server details but I... (6 Replies)
Discussion started by: skp
6 Replies
LEARN ABOUT X11R4
exec
exec(1) User Commands exec(1)NAME
exec, eval, source - shell built-in functions to execute other commands
SYNOPSIS
sh
exec [argument...]
eval [argument...]
csh
exec command
eval argument...
source [-h] name
ksh
*exec [arg...]
*eval [arg...]
DESCRIPTION
sh
The exec command specified by the arguments is executed in place of this shell without creating a new process. Input/output arguments may
appear and, if no other arguments are given, cause the shell input/output to be modified.
The arguments to the eval built-in are read as input to the shell and the resulting command(s) executed.
csh
exec executes command in place of the current shell, which terminates.
eval reads its arguments as input to the shell and executes the resulting command(s). This is usually used to execute commands generated as
the result of command or variable substitution.
source reads commands from name. source commands may be nested, but if they are nested too deeply the shell may run out of file descrip-
tors. An error in a sourced file at any level terminates all nested source commands.
-h Place commands from the file name on the history list without executing them.
ksh
With the exec built-in, if arg is given, the command specified by the arguments is executed in place of this shell without creating a new
process. Input/output arguments may appear and affect the current process. If no arguments are given the effect of this command is to mod-
ify file descriptors as prescribed by the input/output redirection list. In this case, any file descriptor numbers greater than 2 that are
opened with this mechanism are closed when invoking another program.
The arguments to eval are read as input to the shell and the resulting command(s) executed.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
EXIT STATUS
For ksh:
If command is not found, the exit status is 127. If command is found, but is not an executable utility, the exit status is 126. If a redi-
rection error occurs, the shell exits with a value in the range 1-125. Otherwise, exec returns a zero exit status.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), ksh(1), sh(1), attributes(5)SunOS 5.10 17 Jul 2002 exec(1)