is it possible to use wild cards in this statement
This command works fine but the bit in bold (the 8 character hostid) will not always be 19b8be67 so I was hoping I could use some sort of wildcard that indicates the 8 characters directly after EXP_SERIAL_
I am trying to use a script to replace the header of each file, whose filename are stored within the array $test, using the sed command within a Perl script as follows:
$count = 0;
while ( $count < $#test )
{
`sed -e 's/BIOGRF 321/BIOGRF 332/g' ${test} > 0`;
`cat 0 >... (2 Replies)
Good evening All,
I have a perl script to pull out all occurrences of a files beginning with xx and ending in .p. I will then loop through all 1K files in a directory. I can grep for xx*.p files but it gives me the entire line. I wish to output to a single colum with only the hits found. ... (3 Replies)
Hi Everyone,
i have a string 00:44:40
so:
$tmp=~ s/://gi;
$tmp=~s/({2})({2})({2})/$1*3600+$2*60+$3/e;
the output is 2680.
Any way to combine this two lines into a single line?
Thanks (4 Replies)
I have a question regarding Perl scripting.
If I want to say open files that all look like this and assign them to a filehandle and then assign the filehandle to a variable, how do I do this?
The file names are
strand1.fa.gz.tmp
strand2.fa.gz.tmp
strand3.fa.gz.tmp
strand4.fa.gz.tmp
...... (6 Replies)
These 2 websites do a GREAT job of explaining different types of wildcards. I learned about the categories of characters which I never knew about at all.
GNU/Linux Command-Line Tools Guide - Wildcards
GREP (1 Reply)
so in unix this command works works and shows me a list of directories
find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt
but when i try running a perl script to run this command
my $query = 'find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt';... (2 Replies)
Hi
I have 2 directories t1 and t2 with some files in it. I have to see whether the files present in t1 is also there in t2 or not. Currently, both the directories contain the same files as shown below:
$ABC.TXT
def.txt
Now, when I run the below script, it tells def.txt is found,... (5 Replies)
Hello everyone. My first time posting here.
I have a question that may seem very insignificant to some but is one that I've been trying to address for the past several days (haven't had any luck looking online).
I'm trying to clean a directory by removing old files that we no longer need.... (2 Replies)
I have the following script (parts from help on this forum, thanks y'all):
#!/usr/bin/ksh
date '+%m %d %Y' |
{
read MONTH DAY YEAR
DAY=`expr "$DAY" - 1`
case "$DAY" in
0)
MONTH=`expr "$MONTH" - 1`
case "$MONTH" in
0)
... (5 Replies)
greetings,
below is the find command i am using for some filesystem maintenance:
find /data/Engine \( -type d -name .snapshot -prune -o -type d -wholename "/data/Engine/*/CAE" \
-prune -o -type d -wholename "/data/Engine/*/CAD" -prune -o -name ".*.case" \)\
-mtime +365 -print0 -fls... (5 Replies)
Discussion started by: crimso
5 Replies
LEARN ABOUT REDHAT
sethostid
GETHOSTID(2) Linux Programmer's Manual GETHOSTID(2)NAME
gethostid, sethostid - get or set the unique identifier of the current host
SYNOPSIS
#include <unistd.h>
long gethostid(void);
int sethostid(long hostid);
DESCRIPTION
Get or set a unique 32-bit identifier for the current machine. The 32-bit identifier is intended to be unique among all UNIX systems in
existence. This normally resembles the Internet address for the local machine, as returned by gethostbyname(3), and thus usually never
needs to be set.
The sethostid call is restricted to the superuser.
The hostid argument is stored in the file /etc/hostid.
RETURN VALUE
gethostid returns the 32-bit identifier for the current host as set by sethostid(2).
CONFORMING TO
4.2BSD. These functions were dropped in 4.4BSD. POSIX.1 does not define these functions, but ISO/IEC 9945-1:1990 mentions them in
B.4.4.1. SVr4 includes gethostid but not sethostid.
FILES
/etc/hostid
SEE ALSO hostid(1), gethostbyname(3)Linux 0.99.13 1993-11-29 GETHOSTID(2)