06-30-2008
Quote:
Originally Posted by
alby
how do i get a result in fraction in shell script.
I am using expr for division of two numbers but it is giving Quotient.
I need it in full fraction value.
Pls don't 'piggy-back' threads - start a new thread.
Also please read the
Rules.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Is it possible to pass a variable name, as a parameter to a function, so it can be created within this function ?
Something like this:
func_uppercase abcdefgh var_name
where the 1st parameter is the string I want to convert and the 2nd is the desired variable name...
$2=`echo "$1" |... (2 Replies)
Discussion started by: 435 Gavea
2 Replies
2. UNIX for Dummies Questions & Answers
Hi,
I am trying to sum up numbered columns and in order to tidy up the program I have wrote a function to do the adding of some numbers. I have a problem though with passing a variable to the function in the UNIX bash shell. The function only gives the first number in the variable list and does... (4 Replies)
Discussion started by: Knotty
4 Replies
3. UNIX for Advanced & Expert Users
Suppose I have a unix variable called RGNM which is holding a value. Now I want to call a plsql function in my script. THis plsql function takes one IN parameter. I want to pass my UNIX VARIABLE Value to the plsql function. Can i just give it by giving $RGNM in the function after calling sqlplus... (1 Reply)
Discussion started by: cobroraj
1 Replies
4. UNIX for Dummies Questions & Answers
I would like to know how to pass a variable inside a variable to a function.
sample code below
--------------
for x in 1 9
do
check_null $C$x ##call function to check if the value is null
if
then
echo "line number:$var_cnt,... (2 Replies)
Discussion started by: KingVikram
2 Replies
5. Shell Programming and Scripting
I have two scripts. script1.sh looks
--------------------------------
#!/bin/bash
display()
{
echo "Welcome to Unix"
}
display
-----------------------------
Script2.sh
#!/bin/bash
sh script1.sh //simply calling script1.sh
------------------------------ (1 Reply)
Discussion started by: mvictorvijayan
1 Replies
6. Shell Programming and Scripting
following on from below link
https://www.unix.com/shell-programming-scripting/171076-shell-scripting.html#post302573569
i will be using file reading in while loop say for example
while read line123
do
echo "line read is $line123"
insert_funct $line123
done< mysqldump.sql... (6 Replies)
Discussion started by: vivek d r
6 Replies
7. Shell Programming and Scripting
emailid=myemail@xyz.com
taskName="DB-Backup"
starttime=`date`
email()
{
subject="$taskName" ": " $* " at `date` "
mutt -s "$subject" $emailid < /dev/null
}
email "Starting"
#do my stuff
email "Finished"
The above code gives following error
./dbbackup.sh: line 6: :... (5 Replies)
Discussion started by: nitiraj.rathore
5 Replies
8. Shell Programming and Scripting
Hello All,
I would like to ask help from you on how to pass variable value from a function that has been called inside the function. I have created below and
put the variables in " ". Is there another way I can do this? Thank you in advance.
readtasklist() {
while read -r mod ver... (1 Reply)
Discussion started by: aderamos12
1 Replies
9. Shell Programming and Scripting
I have the below script which creates a directory or simply terminates without throwing error (exit 1) incase the directory exists.
bash-4.1$ vi mdir.sh
#!/bin/bash -e
shopt -s expand_aliases
alias mkdir=mkdir_s
mkdir_s(){
if ]; then
echo " directory EXISTS "
return
else
echo "... (3 Replies)
Discussion started by: mohtashims
3 Replies
10. Shell Programming and Scripting
I want to make a config file which contain all the paths.
i want to read the config file line by line and pass as an argument on my below function.
Replace all the path with reading config path line by line and pass in respective functions.
how can i achieve that?
Kindly guide.
... (6 Replies)
Discussion started by: sadique.manzar
6 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)
NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS
--debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.8.4 2005-05-03 SHELL-QUOTE(1p)