... With sh or ksh, you must use a while statement.
Jean-Pierre.
This version of ksh accepts the extended for syntax:
Code:
#!/bin/ksh
# @(#) s1 Demonstrate for loop in ksh.
echo
echo "(Versions displayed with local utility \"version\")"
version >/dev/null 2>&1 && version =o $(_eat $0 $1)
N=3
echo
for (( i = 1; i <= ${N}; i++ ))
do
echo "Welcome $i times"
done
exit $?
producing:
Code:
$ ./s1
(Versions displayed with local utility "version")
Linux 2.6.24-1-686
ksh 93s+
Welcome 1 times
Welcome 2 times
Welcome 3 times
I will say I was surprised to find this AT&T version of ksh in Debian Lenny rather than the previous pdksh, but it makes life easier in some situations. Solaris 10 still has pdksh as the default ksh [edit: this is not true, see post below] ... cheers, drl
Last edited by drl; 04-12-2008 at 06:06 PM..
Reason: Point out error in assertion for Solaris 10.
I have seen this done before - and maybe there is a better way too.
I want to be abe to use a for loop (or other better method) to loop through the database instance names that are part of the script - not an external file where a read might be ok.
Here is what I have and I know won't work -... (5 Replies)
Can anyone tell me what's wrong with my code here? I'm experiencing weird behavior...
I am using 'j' to go down a list filenames saved in a .txt file and prompting the user whether or not she would like to delete each one. This works all well and fine the first run through, but then instead of... (2 Replies)
When I run the following command in the shell it works fine. It prints a city name and then a path for a file.
~$ for i in `awk -F':' '{print $0}' /home/knoppix/Desktop/data/subs | grep -m 1 $ city | sed "s/:/ /"`
>do
>echo $i
>done
Now, when I place it in this shell script (sh) it prints... (6 Replies)
hi,
I have to use for loop in my script. The below code is providing an output,
1,2,3,4,5..n. But i need to display the values one by one eg: it has to display the first value then exit from the loop and display the second value then exit till n(last value).
for i in 1,2,3,4,5..n
do ... (2 Replies)
HI there,
I am trying to count manually what this code does but I am stuck and I don't learly see the result. The code works and it compiles and runs but I just don't follow the value of var.
#include<stdio.h>
#include<stdlib.h>
#include<sys/types.h>
#include<unistd.h>
#include<wait.h>... (2 Replies)
#!/bin/bash
function check_num_args()
{
if ; then
echo "Please provide a file name"
else
treat_as_file $*
fi
}
function treat_as_file()
{
numFiles=$#
for((i=1;i<=$numFiles;i++));do
echo $i
... (3 Replies)
Good evening all I have what might be a simple problem to solve but I do not know how to solve it myself. I am writing a bash script and my code looks something like this:
mp3=`ls | grep \.mp3`
for f in $mp3
do
echo $f
done
Basically what I want to do is look through the current... (4 Replies)
I have the text file where each line has the format:
chr10 101418889 101418904 0.816327
Right now the interval between column 2 and 3 is 15. I only want the two consecutive positions starting at position 1, write it to a file, then move up one position write to file etc. So that:
... (1 Reply)
I have a shell script which has this while loop line
"while read tblName xx; do..."
I understand how while loop works but don't know what does this xx stands for? (1 Reply)
Discussion started by: later_troy
1 Replies
LEARN ABOUT SUNOS
print
print(1) User Commands print(1)NAME
print - shell built-in function to output characters to the screen or window
SYNOPSIS
ksh
print [ -Rnprsu [n]] [arg...]
DESCRIPTION
ksh
The shell output mechanism. With no flags or with flag - or -, the arguments are printed on standard output as described by echo(1).
OPTIONS
The following options are supported:
-n suppresses new-line from being added to the output.
-R
-r (raw mode) ignore the escape conventions of echo. The -R option will print all subsequent arguments and options other than
-n.
-p causes the arguments to be written onto the pipe of the process spawned with |& instead of standard output.
-s causes the arguments to be written onto the history file instead of standard output.
-u [ n ] flag can be used to specify a one digit file descriptor unit number n on which the output will be placed. The default is 1.
EXIT STATUS
The following exit values are returned:
0 Successful operation.
>0 Output file is not open for writing.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO echo(1), ksh(1), attributes(5)SunOS 5.10 15 Apr 1994 print(1)