You better use find as suggested. When I forget (that happens more often) about the location of any config file or any such thing, but somehow if I remember any unique word in that file I do this:
This is lot faster.
@Corona688
Some directories in /etc are indeed restricted for root. This depends on what UNIX/Linux variant you are using and the installed software/packages. See below:
What if the file you are searching are in one of those directories.
Also, my RHEL 6.1 VM took 100% of CPU time of 4 allocated cores (with only 953 inodes in /etc directory):
So there's a pretty good reason why your GUI got stuck as grep has to run a loop for each inode (that includes directories as well which is absolutely meaning less in this case).
Hi,
I have one basic doubt, that using grep command frequently , will it have direct impact on the CPU load, pls clarify
for eg, if i run a non stop script containing while loop to grep some parameters, what will be the load in CPU..
thanks (3 Replies)
(extract from SQL binlog file...)
# at 4960
#080801 14:35:31 server id 4 end_log_pos 195 Query thread_id=63121426 exec_time=0 error_code=0
use d_jds;
SET TIMESTAMP=1217581531;
UPDATE bid_details set bidding = 3170.37 ,deduction=if((3170.37 < 37.43),0,deduction)
where... (3 Replies)
Hi
I would like to thank you all for this excellent forum.
Today i tried to compare two files and i get some problem with it.
I have two files and i want to get all the data that match the first file like this
File1 (pattern file)
___________________________
9007
9126
9918
9127 ... (6 Replies)
I'm having problems since few days ago, and i'm not able to make it works with a simple awk+grep script (or other way to do this).
For example, i have a input file1.txt:
cat inputfile1.txt
218299910417
1172051195
1172070231
1172073514
1183135117
1183135118
1183135119
1281440202
... (3 Replies)
Sorry for the title, I really don't know how to word this question or what to even search for. I tried "grep one match", "grep 1 match", "stop grep" on both google and here and haven't found something that helps, so here I go:
I have a file that's about 1.5 million lines long, every line looks... (3 Replies)
Hi friends,
This is my very first post on forum, so kindly excuse if my doubts are found too silly.
I am trying to automate a piece of routine work and this is where I am stuck at the moment-I need to grep a particular ID through a file containing many records(which start with <LRECORD> and end... (6 Replies)
Okay, I am trying to come up with a multi-platform script to report top ten CPU and memory hog processes, which will be run by our enterprise monitoring application as an auto-action item when the CPU and Memory utilization gets reported as higher than a certain threshold
I use top on other... (5 Replies)
As per my understanding below mentioned line of code finding a word 'boy' in $ACULOG...
num_errors=`grep -i -e fail -e illegal -e exception -e "<E" -e boy $ACULOG | wc -l`
if I'm not corerct, please correct me. How I can find entire line like "This is a boy" with something similar as above... (1 Reply)
As per my understanding below mentioned line of code finding a word 'boy' in $ACULOG...
num_errors=`grep -i -e fail -e illegal -e exception -e "<E" -e boy $ACULOG | wc -l`
if I'm not corerct, please correct me. How I can find entire line like "This is a boy" with something similar as above... (1 Reply)
Let me give you a complete example what I am trying to achieve.
1. Below is the log file structure where I need 2,5 and 14th column of the logs after grepping through the linkId=1ddoic.
Log file structure:-
abc.com 20120829001415 127.0.0.1 app none11111 sas 0 0 N clk Mozilla/5.0... (3 Replies)
Discussion started by: kmajumder
3 Replies
LEARN ABOUT SUNOS
chroot
chroot(2) System Calls chroot(2)NAME
chroot, fchroot - change root directory
SYNOPSIS
#include <unistd.h>
int chroot(const char *path);
int fchroot(int fildes);
DESCRIPTION
The chroot() and fchroot() functions cause a directory to become the root directory, the starting point for path searches for path names
beginning with / (slash). The user's working directory is unaffected by the chroot() and fchroot() functions.
The path argument points to a path name naming a directory. The fildes argument to fchroot() is the open file descriptor of the directory
which is to become the root.
The privilege {PRIV_PROC_CHROOT} must be asserted in the effective set of the process to change the root directory. While it is always pos-
sible to change to the system root using the fchroot() function, it is not guaranteed to succeed in any other case, even if fildes is valid
in all respects.
The ".." entry in the root directory is interpreted to mean the root directory itself. Therefore, ".." cannot be used to access files out-
side the subtree rooted at the root directory. Instead, fchroot() can be used to reset the root to a directory that was opened before the
root directory was changed.
RETURN VALUES
Upon successful completion, 0 is returned. Otherwise, -1 is returned, the root directory remains unchanged, and errno is set to indicate
the error.
ERRORS
The chroot() function will fail if:
EACCES Search permission is denied for a component of the path prefix of dirname, or search permission is denied for the
directory referred to by dirname.
EBADF The descriptor is not valid.
EFAULT The path argument points to an illegal address.
EINVAL The fchroot() function attempted to change to a directory the is not the system root and external circumstances do
not allow this.
EINTR A signal was caught during the execution of the chroot() function.
EIO An I/O error occurred while reading from or writing to the file system.
ELOOP Too many symbolic links were encountered in translating path.
ENAMETOOLONG The length of the path argument exceeds PATH_MAX, or the length of a path component exceeds NAME_MAX while
_POSIX_NO_TRUNC is in effect.
ENOENT The named directory does not exist or is a null pathname.
ENOLINK The path argument points to a remote machine and the link to that machine is no longer active.
ENOTDIR Any component of the path name is not a directory.
EPERM The {PRIV_PROC_CHROOT} privilege is not asserted in the effective set of the calling process.
SEE ALSO chroot(1M), chdir(2), privileges(5)WARNINGS
The only use of fchroot() that is appropriate is to change back to the system root.
SunOS 5.10 20 Jan 2003 chroot(2)