If I have 3 variables and I want to check if any of these is null. If one of them is null then it should be assigned a value of 0.I have the following code below.
The output should be 0 is A, 11 is B, 33 is C
$a=
$b=11
$c=33
$echo $a $b $c
$11 33
for i in "${a}" "${b}" "${c}";
do
... (2 Replies)
Hi All,
While executing following for loop in unix, it is working fine.
sum=0
tot_amt=`for i in `cat amt`
do
sum=`echo "$sum + $i"|bc`
done`
But if i assing this loop in a variable it is not working. The error is so and done is unexpected.
tot_val=`sum=0;tot_amt=`for i in... (3 Replies)
I need to do something like this:
for i in 1 2 3 4 5; do
arr=$(awk 'NR="$i" { print $2 }' file_with_5_records)
done
That is, parse a file and assign values to an array in an ascending order relative to the number of record in the file that is being processed on each loop.
Is my... (2 Replies)
can we make a global variable and store character values and add other values to that variable ?? for example
a="hello, John"
and can we add value ". How are you? so
a can have
"hello, John. How are you?"
can someone help me?? (2 Replies)
Hi
I am new to shell scripting and i am preparing a script.
for now i am work on a sub part of it..but i am unable to make it work.
---
the test code that i am working on
--------------------------
IFS=""
Sample_eve=`psg proc_s | grep tY`
n=0
for line in $Sample_eve... (41 Replies)
Hi folks.
I have this variable called FirstIN that contains something like this: 001,002,003,004...
I am trying to assign the content of this variable into ModifiedIN but with the following format : 001 002 003 004...(changing the commas for spaces)
I thought about using sed but i am not... (17 Replies)
Hi,
Please help me writing for loop to fetch data and store in variable from a text file which contains data as below:
12
46
56
5466
111
There are 40 lines of data...!!!!
I jus need all data from line no 4 to 40 ie data for 4,6,8......40. (2 Replies)
my script is some thing like this
i11="{1,2,3,4,5,6,7,8,9,10,11,}"
echo "enter value"
read value ..............suppose i11
x="$value"
echo "$($value)" .............the echo should be {1,2,3,4,5,6,7,8,9,10,11,}
but its showing "i11" only.
plz help me out to get desired... (10 Replies)
Hi, I was wondering if anyone could assist me for (what is probably) a very straightforward answer.
I have input files containing something like
File 1
Apples
Apples
Apples
Apples
File 2
Bananas
Bananas
Bananas
Bananas (4 Replies)
Hi All,
Is it possible to grep for two files and assign their names to two separate variables with for loop? I am doing the below currently:
if
then
for fname in $( cd $dirA ; ls -tr | grep "^Ucountry_file$")
do
InFile=$dirA/$fname
... (4 Replies)
Discussion started by: swasid
4 Replies
LEARN ABOUT OPENSOLARIS
endusershell
getusershell(3C) Standard C Library Functions getusershell(3C)NAME
getusershell, setusershell, endusershell - get legal user shells
SYNOPSIS
#include <unistd.h>
char *getusershell(void);
void setusershell(void);
void endusershell(void);
DESCRIPTION
The getusershell() function returns a pointer to a legal user shell as defined by the system manager in the file /etc/shells. If
/etc/shells does not exist, the following locations of the standard system shells are used in its place:
/bin/bash /bin/csh
/bin/jsh /bin/ksh
/bin/ksh93 /bin/pfcsh
/bin/pfksh /bin/pfsh
/bin/sh /bin/tcsh
/bin/zsh /sbin/jsh
/sbin/pfsh /sbin/sh
/usr/bin/bash /usr/bin/csh
/usr/bin/jsh /usr/bin/ksh
/usr/bin/ksh93 /usr/bin/pfcsh
/usr/bin/pfksh /usr/bin/pfsh
/usr/bin/sh /usr/bin/tcsh
/usr/bin/zsh /usr/sfw/bin/zsh
/usr/xpg4/bin/sh
The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells.
The setusershell() function rewinds the file or the list.
The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells.
RETURN VALUES
The getusershell() function returns a null pointer on EOF.
BUGS
All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved.
NOTES
Restricted shells should not be listed in /etc/shells.
SunOS 5.11 1 Nov 2007 getusershell(3C)