03-23-2009
What do you expect it to be? I think that in your context $$# is the number of positional parameters passed to the script.
I'm also puzzled by the "set" commands and what you expect them to be doing.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I apologize for the simple question but can someone please help me with how to evaluate a number?
I will be reading in a file and if a number is >= 100000000, I will do something, if not, I will exit the if statement.
Thanks in advance (1 Reply)
Discussion started by: hedrict
1 Replies
2. UNIX for Advanced & Expert Users
Does anyone know any tools or how to really get something out of a core file.
I can use strings and look for certain things like out of memory.
I am trying to use adb but I can't make heads or tails from it. I guess it is my lack of know how with the adb/mdb debugger.
anything would... (3 Replies)
Discussion started by: Gary Dunn
3 Replies
3. UNIX for Dummies Questions & Answers
Hi
I have a script in which I have several variables
var1
var2
var3
var4
etc......
and
field1
field2
field3
field4
etc.......
The script similar to this: (6 Replies)
Discussion started by: Bab00shka
6 Replies
4. UNIX for Dummies Questions & Answers
Hi all,
I ve a script like....
TBL=employee
sql=`cat abhi.sql` \\ abhi.sql contains ------- select a from $TBL
echo $TBL
echo $sql
SQL=`echo $sql`
echo $SQL
now i want SQL as select a from employee
and as select a from $TBL
How can I achieve this?
Help appriciated (3 Replies)
Discussion started by: abzi
3 Replies
5. Shell Programming and Scripting
I have a user defined configuration file, which could contain the following type of entries:
directory_001=/a/directory/structure
pattern_001=fred*
pattern_002=*
I have a script which reads the file generically which will loop round
loop 1
genvar=”directory”
iteration=”001”
... (11 Replies)
Discussion started by: Bab00shka
11 Replies
6. UNIX for Dummies Questions & Answers
how do i evaluate the value of date
if ( $(date +%m) > 8 ) then
FY_STAMP=FY$(echo $(($(date +%Y) + 1)) | cut -c3-4)
else
FY_STAMP=FY$(date +%y)
fi
i want this to make the FY_STAMP increment by 1 if the month is september and up. but cant seem to make it work (3 Replies)
Discussion started by: rsf01
3 Replies
7. Shell Programming and Scripting
Hi,
I have the following requirement.
V="First"
R="V"
echo $$R
The output should be First. How do i achieve this.
how do we evaluate the $R and evaluate it to $V as $R contains V
and $V is First.
Thanks
Vijay (2 Replies)
Discussion started by: vijaykrc
2 Replies
8. Shell Programming and Scripting
Hi all,
Thanks in advance for your time.
I have a data file like this:
1 7.465753425
2 8.980821918
1 1.717808219
1 6.550684932
0 5.432876712
I wish to write a bash script to check both columns and output a 1 if col1==1 AND col2<3. Otherwise I want to output a 0. In the above... (5 Replies)
Discussion started by: jem8271
5 Replies
9. Shell Programming and Scripting
Does anyone know of a way to force a variable name held in another variable to return the value of the first variable? Best if I give an example, that does not work:
/usr/local/bin >cat mike.sh
NUM1ref=16
NUM2ref=32
echo "=============="
for VAR in NUM1 NUM2
do
XXXX=${VAR}ref
echo $XXXX... (4 Replies)
Discussion started by: mikejordan
4 Replies
10. UNIX for Dummies Questions & Answers
Hi Guys,
Good day ULF :) I hope you can help me again with my problem. I have a file which looks like this:
Command was launched from partition 0.
------------------------------------------------
Executing command in server server3
Dec 18 21:31:12 AHM04 nseventmgr: EVENT-SET:... (4 Replies)
Discussion started by: rymnd_12345
4 Replies
shift(1) User Commands shift(1)
NAME
shift - shell built-in function to traverse either a shell's argument list or a list of field-separated words
SYNOPSIS
sh
shift [n]
csh
shift [variable]
ksh
* shift [n]
DESCRIPTION
sh
The positional parameters from $n+1 ... are renamed $1 ... . If n is not given, it is assumed to be 1.
csh
The components of argv, or variable, if supplied, are shifted to the left, discarding the first component. It is an error for the variable
not to be set or to have a null value.
ksh
The positional parameters from $n+1 $n+1 ... are renamed $1 ..., default n is 1. The parameter n can be any arithmetic expression that
evaluates to a non-negative number less than or equal to $#.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
csh(1), ksh(1), sh(1), attributes(5)
SunOS 5.10 15 Apr 1994 shift(1)