08-22-2005
Check man popen.. jim's suggestion.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi ,
I want to pass parameters from a shell script to a sql script and use the parameter in the sql query ..and then I want to spool a particular select query on to my unix box... for 4 different locations by writing only one sql script
Right now no file is generated on the unix box...it is a... (2 Replies)
Discussion started by: phani
2 Replies
2. Shell Programming and Scripting
Hi all
I want to know how to pass value from one shell script to another
suppose i have script named A.This 'A.sh' calls 'B.sh' .Now some calculations
are done by B.sh ..Say in variable X.
Now i want to pass the value of this X variable to 'A.sh'...
A.sh ----> B.sh ( X variable )
... (6 Replies)
Discussion started by: dhananjaysk
6 Replies
3. Shell Programming and Scripting
Hi All,
Does anyone have any solutions for passing back multiple variables back to the SHELL from a call to an ORACLE procedure:
eg
#username='scott'
#password='tiger'
#database='orcl'
username='ITGCD03D03'
password='tC5epIew'
database='ITGCD03D'
sqlplus -s... (4 Replies)
Discussion started by: satnamx
4 Replies
4. Shell Programming and Scripting
I am using grep to capture date from a file .
Since i need to use the shell script for different dates ,is it possible to pass the date parameter to the shell script
the Script is as below
grep -E "08 Aug 2008|2008-08-08"* somefile.txt>test.txt
The above script file greps the... (1 Reply)
Discussion started by: sud.tech
1 Replies
5. Shell Programming and Scripting
i have this basic piece of code that i am trying to debug to accept input parameter to be able to display a directory listing of files.
cd /u02/app/eatv/dev/out
CURDIR=`pwd`
echo directory listing of $CURDIR
echo
if ; then
ls -latr
else
ls -latr $1
fi
basically if the script... (9 Replies)
Discussion started by: wtolentino
9 Replies
6. Shell Programming and Scripting
Hello,
I have this shell script that runs awk code by passing in parameters however now it doesn't work anymore with the parameters and I don't know why.
It removes duplicates from an input file based on a part of the last field and a key column. It removes the record with the older datetime... (0 Replies)
Discussion started by: script_op2a
0 Replies
7. Shell Programming and Scripting
Hi,
Solaris : 10 .
I have 3 database in single file system i.e. /d01 . whenever I connect to oracle user using the below method
#su - oracle
It will prompt for which database environment you want to set(PROD,TEST,UAT) :
whichever i need i will enter required DATABASE and perform my... (2 Replies)
Discussion started by: maooah
2 Replies
8. Shell Programming and Scripting
Hello All,
I am interested in finding out a way to pass parameters that are entered at the prompt from HP unix and passed to SQLPlus code with a Shell Script. Is this possible?
Thanks (4 Replies)
Discussion started by: compprog11
4 Replies
9. Shell Programming and Scripting
Hi All,
I have a shell script(test_abc.sh) with the following shell commands, which are invoking the same shell script with different parameters.
test_abc.sh
. ./test.sh abc >> test.log
. ./test.sh xyz >> test.log
. ./test.sh pys >> test.log
. ./test.sh abc >> test.log
.
.
... (4 Replies)
Discussion started by: dev.devil.1983
4 Replies
10. UNIX for Beginners Questions & Answers
Based on arguments passing in command prompt values should fetch and store in new file.
Sample:-
sh test.sh 10 30 35 45
cat test.sh
..
cut -c $1-$2,$3-$4 file_name >> file_new
...
...
Above sample passing 4 arguments.. but it may differ (sh test.sh 10 30 35 45 70 75 ) based on... (1 Reply)
Discussion started by: Jairaj
1 Replies
popen(3) Library Functions Manual popen(3)
Name
popen, pclose - initiate I/O to/from a process
Syntax
#include <stdio.h>
FILE *popen(command, type)
char *command, *type;
pclose(stream)
FILE *stream;
Description
The arguments to are pointers to null-terminated strings containing respectively a shell command line and an I/O mode, either "r" for read-
ing or "w" for writing. It creates a pipe between the calling process and the command to be executed. The value returned is a stream
pointer that can be used (as appropriate) to write to the standard input of the command or read from its standard output.
A stream opened by should be closed by which waits for the associated process to terminate and returns the exit status of the command.
Because open files are shared, a type "r" command may be used as an input filter, and a type "w" as an output filter.
Diagnostics
The routine returns a null pointer if files or processes cannot be created, or the shell cannot be accessed.
The routine returns -1 if stream is not associated with a `popened' command.
Restrictions
Buffered reading before opening an input filter may leave the standard input of that filter mispositioned. Similar problems with an output
filter may be forestalled by careful buffer flushing, for instance, with For further information, see
The routine always calls and never calls
See Also
sh(1), pipe(2), wait(2), system(3), fclose(3s), fopen(3s)
popen(3)