Hi,
Not really sure whether this question should go to this forum but am giving it a shot.
I have compiled a simple C program test.c.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static int a;
int test()
{
a=a+1;
return a;
}
When I run a make command, I get this:
... (2 Replies)
One of our servers runs Solaris 8 and does not have "ls -lh" as a valid command. I wrote the following script to make the ls output easier to read and emulate "ls -lh" functionality. The script works, but it is slow when executed on a directory that contains a large number of files. Can anyone make... (10 Replies)
Hi,
Can any one help me out in solving the problem i have a linux database server it is tooo slow that i am unable to open even the terminial is there any solution to get rid of this problem.How to make this server faster.
Thanks & Regards
Venky (0 Replies)
Hello,
Error
awk: Internal software error in the tostring function on TS1101?05044400?.0085498227?0?.0011041461?.0034752266?.00397045?0?0?0?0?0?0?11/02/10?09/23/10???10?no??0??no?sct_det3_10_20110516_143936.txt
What it is
It is a unix shell script that contains an awk program as well as... (4 Replies)
Hi all,
In bash scripting, I use to read files:
cat $file | while read line; do
...
doneHowever, it's a very slow way to read file line by line.
E.g. In a file that has 3 columns, and less than 400 rows, like this:
I run next script:
cat $line | while read line; do ## Reads each... (10 Replies)
Hi,
I have a large number of subdirectories (>200), and in each of these directories there is a file with a name like "opp1234.dat".
I'd like to know how I could change the names of these files to say "out.dat" in all these subdirectories in one go.
Thanks! (5 Replies)
Good evening
Im new at unix shell scripting and im planning to script a shell that removes headers for about 120 files in a directory and each file contains about 200000
lines in average.
i know i will loop files to process each one and ive found in this great forum different solutions... (5 Replies)
I have script like below, who is picking number from one file and and searching in another file, and printing output.
Bu is is very slow to be run on huge file.can we modify it with awk
#! /bin/ksh
while read line1
do
echo "$line1"
a=`echo $line1`
if
then
echo "$num"
cat file1|nawk... (6 Replies)
I have the below command which is referring a large file and it is taking 3 hours to run. Can something be done to make this command faster.
awk -F ',' '{OFS=","}{ if ($13 == "9999") print $1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12 }' ${NLAP_TEMP}/hist1.out|sort -T ${NLAP_TEMP} |uniq>... (13 Replies)
I have nginx web server logs with all requests that were made and I'm filtering them by date and time.
Each line has the following structure:
127.0.0.1 - xyz.com GET 123.ts HTTP/1.1 (200) 0.000 s 3182 CoreMedia/1.0.0.15F79 (iPhone; U; CPU OS 11_4 like Mac OS X; pt_br)
These text files are... (21 Replies)
Discussion started by: brenoasrm
21 Replies
LEARN ABOUT CENTOS
rename
RENAME(1) User Commands RENAME(1)NAME
rename - rename files
SYNOPSIS
rename [options] expression replacement file...
DESCRIPTION
rename will rename the specified files by replacing the first occurrence of expression in their name by replacement.
OPTIONS -v, --verbose
Give visual feedback which files where renamed, if any.
-V, --version
Display version information and exit.
-s, --symlink
Peform rename on symlink target
-h, --help
Display help text and exit.
EXAMPLES
Given the files foo1, ..., foo9, foo10, ..., foo278, the commands
rename foo foo0 foo?
rename foo foo0 foo??
will turn them into foo001, ..., foo009, foo010, ..., foo278. And
rename .htm .html *.htm
will fix the extension of your html files.
WARNING
The renaming has no safeguards. If the user has permission to rewrite file names, the command will perform the action without any ques-
tions. For example, the result can be quite drastic when the command is run as root in the /lib directory. Always make a backup before
running the command, unless you truly know what you are doing.
SEE ALSO mmv(1), mv(1)AVAILABILITY
The rename command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux June 2011 RENAME(1)