04-13-2008
please explain if [ -z $found ]
if [ -z $found ]
here it is checking $found != null and how to check if found = null
in the if condition in shell script
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
:start
/@~/{
h
s/\(.*\)@~.*$/\1/
s/@~$//
s/@~/\
/g
p
g
s/.*@~\(.*\)/\1/
}
//{
N
s/\n/ /
b start
} (2 Replies)
Discussion started by: djkane
2 Replies
2. Shell Programming and Scripting
hello all
im trying to use in sun Solaris the information received from the top command
now i several machines that dont have install the top program so when im running the script im geting error
saying after im running this code :
set MemoryInfo = `top | grep Memory`
if (... (2 Replies)
Discussion started by: umen
2 Replies
3. Shell Programming and Scripting
I did not understand what is ${0##/}
PGM=${0##/}
TMP=/tmp/${PGM}.$$
Please explain me. (2 Replies)
Discussion started by: gadege
2 Replies
4. Shell Programming and Scripting
could u please convert the below statement to shell script
----------
logdir=/smp/dyn/logfiles/cpm/pgm/pgIm
$logdir = $logdir ."/pgIm${toDate}*";
----
could u please explain the below clearly
grep -i adding $logdir | grep -iv equation | awk '{print \$NF}' | sort -u | sed -e... (1 Reply)
Discussion started by: mail2sant
1 Replies
5. UNIX for Dummies Questions & Answers
if
then
echo "Syntax: $0 <sid> <COLD/HOT> <DEST>"
exit
fi
if --------------what does this mean???
echo "Syntax: $0 <sid> <COLD/HOT> <DEST>"---pls explain this as well (2 Replies)
Discussion started by: appsdba.nitin
2 Replies
6. Shell Programming and Scripting
hi all i have an example i want one help me to understand cause i tried to test it but almost fail and i don't know how can i solve this problem " the main idea to read from two files and replace something from one to another " but i don't understand why it fail all time
$ cat main.txt... (4 Replies)
Discussion started by: maxim42
4 Replies
7. Homework & Coursework Questions
1. The problem statement, all variables and given/known data:
I have a retake assignment to complete for my computer networks and OS class. This isn't really my area, had I known last year I could have swapped it for a different module I would have done so. I'm determined to get through it... (6 Replies)
Discussion started by: Squall Moogle
6 Replies
8. Shell Programming and Scripting
I'm trying to follow a script and I see it begins with this:
if ; then
if ; then
print "blah $0 blah blah "
exit
fi
fi
What does $# mean? I found out that $1 refers to the shell environment and the last argument that was entered or passed in the previous command. I couldn't find $#... (2 Replies)
Discussion started by: MaindotC
2 Replies
9. Shell Programming and Scripting
Can someone do me a favour and explain the following for me:
((r=$RANDOM%$n+1))
I know what $RANDOM does but what is % sign and what does it do with %$n+1? (2 Replies)
Discussion started by: bashily
2 Replies
10. UNIX for Dummies Questions & Answers
Hi friends! I'm learning UNIX and I have a small question. Working with Shell, i put the name of one executable (in c language) + one number and it says this:
$ gcc misterioso_4.c
$ ./misterioso_4 6
got: ,
I can not find an answer in the manual because I havent applied any variable.... (5 Replies)
Discussion started by: dakota
5 Replies
dialups(4) Kernel Interfaces Manual dialups(4)
NAME
dialups, d_passwd - dialup security control
DESCRIPTION
and are used to control the dialup security feature of (see login(1)). If is present, the first word on each line is compared with the
name of the line upon which the login is being performed (including the as returned by (see ttyname(3C)). If the login is occurring on a
line found in dialup security is invoked. Anything after a space or tab is ignored.
When dialup security is invoked, requests an additional password, and checks it against that found in The command name found in the ``pro-
gram to use as shell'' field of is used to select the password to be used. Each entry in consists of three fields, separated by colons.
The first is the command name, matching an entry in The second is the encrypted password to be used for dialup security for those users
logging in to use that program. The third is commentary, but the second colon is required to delimit the end of the password. A null
password is designated with two adjacent colons. The entry for is used if no other entry matches the command name taken from
FILES
dial-in tty lines
passwords
SEE ALSO
login(1), passwd(4).
dialups(4)