You don't need to initialize 'total'. All variable are strings by default and initialized to an empty string (""). Once you start performing arithmetic, an empty string is casted to 0.
cat .servers | while read LINE; do
ssh jason@$LINE $1
done
exit 1
./command.ksh "ls -l ~jason"
Why does this ONLY iterate on the first server in the list? It's not doing the command on all the servers in the list, what am I missing?
Thanks!
JP (2 Replies)
Hello
I' m confused a bit.
I want to replace string "&" with "&" using this command.
sed 's/&/&/g'
and it doesn't work. Nothing happens.
On the other side this works:
sed 's/&/@/g'
or sed 's/&/^/g' !!!
Can somebody help please?
Thanks (3 Replies)
Howdie everyone...
I have a shell script RemoveFiles.sh
Inside this file, it only has two commands as below:
rm -f ../../reportToday/temp/*
rm -f ../../report/*
My problem is that when i execute this script, nothing happened. Files remained unremoved. I don't see any error message as it... (2 Replies)
If there exists a field in stdin, print it, otherwise, print hello.....
These print nothing:
cat /dev/null | awk '{if ( length > 0 ) print $1; else print "hello"}'
cat /dev/null | awk '{if ( $1 ) print $1; else print "hello"}'But the scripts work if I run them directly in a terminal:
... (8 Replies)
I have a folder that I need to search for new files and copy on the latest. I've been using "-mtime -1" in my command line but it doesn't seem to work.
I've been meaning to fine a different script because files are dropped into the folder all day long and because of the -mtime, I've only be... (19 Replies)
Hi,when I run my first shell script,I got something that doesn't work right.
I wrote this code in the script.
echo -e "Hello,World\a\n"But the screen print like this:
-e Hello,World
The "-e" wasn't supposed to be printed out.
Can anyone help me out?:wall:
Many thanks!:) (25 Replies)
I have the following and for some reason I can't have two options together.
I mean if I choose -u and -p it won't work... why?
#!/bin/bash
resetTime=1
mytotalTime=0
totalHour=0
totalMin=0
averagemem=0
finalaverage=0
times=0
function usage()
{
cat << EOF
USAGE: $0 file
EOF
} (10 Replies)
Hi,
I am using korn shell.
until ]
do
echo "\$# = " $#
echo "$1"
shift
done
To the above script, I passed 2 parameters and the program control doesn't enter inside "until" loop. If I change it to until ] then it does work.
Why numeric comparison is not working with -ne and works... (3 Replies)
sum(1B) SunOS/BSD Compatibility Package Commands sum(1B)NAME
sum - calculate a checksum for a file
SYNOPSIS
/usr/ucb/sum file...
DESCRIPTION
sum calculates and displays a 16-bit checksum for the named file and displays the size of the file in kilobytes. It is typically used to
look for bad spots, or to validate a file communicated over some transmission line. The checksum is calculated by an algorithm which may
yield different results on machines with 16-bit ints and machines with 32-bit ints, so it cannot always be used to validate that a file has
been transferred between machines with different-sized ints.
USAGE
See largefile(5) for the description of the behavior of sum when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscpu |
+-----------------------------+-----------------------------+
SEE ALSO sum(1), wc(1), attributes(5), largefile(5)DIAGNOSTICS
Read error is indistinguishable from EOF on most devices; check the block count.
NOTES
sum and /usr/bin/sum (see sum(1)) return different checksums.
This utility is obsolete.
SunOS 5.10 8 Nov 1995 sum(1B)