Hi there, probably a really simple question to answer but i cant seem to find it
can I use a logical AND (&&) within a CASE statement ie (ps this is useless syntax but youll get the idea
case "$var1","$var2" in
'Billy' && 'Bobby')
... (1 Reply)
Hi folks
I have a snippet of code Which is like this
If ( ( A || B || C ) && D ) then
Do some thing....
elif exit
fi
How to rephrase this and use it so I dont get any Errors ...
Looking out for helpful replies ..
Thanks & Regards
Srikanth GR (1 Reply)
I'm pretty sure I already know the answer to this, but I want to make sure I'm not overlooking anything. I'm working on a log monitoring script and every 10 lines I want to display a summary of events. The thing is, there are a lot of possible events, that likely won't have happened, so I only want... (0 Replies)
Hi,
shell is /bin/ksh
I am trying to do the following in my code.. but its showing me an error
if ] && ] ]]; then
echo "id is $ida and chk_dy is $chk_dy"
fi
the error I get is
syntax error at line 23 : `"$ida"' unexpected
I need to execute the... (2 Replies)
#! /bin/csh
set umr=UMR
foreach i ( `ls`)
set file_nm=$i
set bh_nm=`echo $file_nm | cut -d"_" -f2`
if($bh_nm !=$umr) then
{
set bh_ext=`echo $file_nm | cut -d"_" -f4`
set bh_num_nm="$bh_nm $bh_ext a .txt"
mv $file_nm $bh_num_nm
}
... (3 Replies)
Hi
I have a logfile that do grow large rapid, so I like to create a new one with needed info.
For some reason the tail -d do not like to redirects its output to a file.
tail -f /var/log/daemon.log | grep -vE '(snmpd|ntpd)'
gives me real time log of all lines without "snmpd" and "ntpd"
This... (4 Replies)
Hi
I want to send a status mail if daily or weekly or monthly batch completed or aborted. Here is the code.
if && &&
||
Else if &&
&& ||
Else if &&
&& ||
then
mailx –s “Status Report” sumone@sumthing.com
else
print ”try again”
Plz suggest the changes. (3 Replies)
I'm would to create a script that would give me the results below.
Please note the spaces in the log file are actually commas(",".)
Log file Data
0:00 21:15 899 43 31 12 25.39
0:00 21:20 736 34 19 15 35.39
0:00 21:20 776 41 28 13 ... (3 Replies)
Hi guys,
I'm trying to send variable commands from 2 different files but I'm not figuring out how to put 2 "i" variables into the command, can anyone help?
This is what is done when I read only 1 file:
for i in $(file1.txt);do echo "$i "
I'm trying to echo 2 variables, matching the lines... (2 Replies)
Hi ,
Can any please help the below requirement on all multiple servers and multiple dbs.
update configuration set value='yes' ;1)
the above statement apply on 31 Databases at a time on different Ip address
eg : 10.104.1.12 (unix ip address )
the above ip box contains 4 db's eg : db... (2 Replies)
Discussion started by: venkat918
2 Replies
LEARN ABOUT REDHAT
expr
EXPR(1) FSF EXPR(1)NAME
expr - evaluate expressions
SYNOPSIS
expr EXPRESSION
expr OPTION
DESCRIPTION --help display this help and exit
--version
output version information and exit
Print the value of EXPRESSION to standard output. A blank line below separates increasing precedence groups. EXPRESSION may be:
ARG1 | ARG2
ARG1 if it is neither null nor 0, otherwise ARG2
ARG1 & ARG2
ARG1 if neither argument is null or 0, otherwise 0
ARG1 < ARG2
ARG1 is less than ARG2
ARG1 <= ARG2
ARG1 is less than or equal to ARG2
ARG1 = ARG2
ARG1 is equal to ARG2
ARG1 != ARG2
ARG1 is unequal to ARG2
ARG1 >= ARG2
ARG1 is greater than or equal to ARG2
ARG1 > ARG2
ARG1 is greater than ARG2
ARG1 + ARG2
arithmetic sum of ARG1 and ARG2
ARG1 - ARG2
arithmetic difference of ARG1 and ARG2
ARG1 * ARG2
arithmetic product of ARG1 and ARG2
ARG1 / ARG2
arithmetic quotient of ARG1 divided by ARG2
ARG1 % ARG2
arithmetic remainder of ARG1 divided by ARG2
STRING : REGEXP
anchored pattern match of REGEXP in STRING
match STRING REGEXP
same as STRING : REGEXP
substr STRING POS LENGTH
substring of STRING, POS counted from 1
index STRING CHARS
index in STRING where any CHARS is found, or 0
length STRING
length of STRING
+ TOKEN
interpret TOKEN as a string, even if it is a
keyword like `match' or an operator like `/'
( EXPRESSION )
value of EXPRESSION
Beware that many operators need to be escaped or quoted for shells. Comparisons are arithmetic if both ARGs are numbers, else lexicograph-
ical. Pattern matches return the string matched between ( and ) or null; if ( and ) are not used, they return the number of characters
matched or 0.
AUTHOR
Written by Mike Parker.
REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
The full documentation for expr is maintained as a Texinfo manual. If the info and expr programs are properly installed at your site, the
command
info expr
should give you access to the complete manual.
GNU coreutils 4.5.3 February 2003 EXPR(1)