Two comments:
First, your user might appreciate knowing which file(s) don't exist by specifically naming it/them in your message. In the case of three inputs that's not too big of a task for the user to track down, but for a real-world programme, with hundreds or thousands of files to check, I would think it would be advantageous to have a list of specifically what doesn't exist.
Secondly, you might also want to look into using the not (!) operator with your logic:
as it would help you to eliminate the echo > /dev/null. Psuedo code:
Hi,
Actually I have a file which consists data . for eg names.
Then I want my sql query to read this file and produce the output.
Currently I am using this
FOR EG : FILENAME is NAMES
for i in `cat NAMES`
{
sqlplus -s $CONNECTID << EOF
spool rooh
set heading off
select... (1 Reply)
I am writing a simple script and want to keep the user in a fuction until they are ready to get out. For some (probably stupid) reason, it doesn't seem to be working. You guys see anything that I'm overlooking?
crsd()
{until
do
/home/wcs3611.crsdtmp.sh
echo 'run another? \c'
... (1 Reply)
Hi,
I'm having some trouble with the syntax in constructing a simple nested 'for' loop.
My code is as follows:
#!/bin/bash
dir1="fred flume haystack"
for dir2 in ${dir1}
do
fred="1 2 3"
flume="a b c"
... (7 Replies)
I have an array of hashrefs that look like the following:
my @LAYOUT = (
{SQL_1 => "select count (*) FROM prospect
WHERE PROCESS_DATE = To_date('INSERT_DATE_HERE', 'mm/dd/yyyy')
and tiff_filename is not null
... (2 Replies)
Hi,
I have series of data stored in a variable xyz:
(between 0 and 100)
example:
20 45 98 21.....
I need to find if there is/are any occurance of data > 95
Not sure what kind of looping is required to check.
Please help.
thanks (2 Replies)
This is my requirement--
I have a list file that contains a list of 50 words.
eg
word1
word2
word3
I want to search/grep for each of those words in a directory/and subdirectories and list the file in which that word exists.
Ne ideas for script/command?
I know grep -r <pattern>... (3 Replies)
I run into a issue when I try to do sorting of the following with ascending order, one round of for looping seems not working, anyone knows how to use shell or perl?
$array = (5,0,3,2,7,9,8) (2 Replies)
Hi,
Now I have written a script which sorts the records in the file and splits them according to some condition.
Now, I need to modify the script so that it reads all the files one after the other and does the sorting & splitting.
Pls help me in reading all the files in a directory and... (8 Replies)
Hi evryone
i need a help .
i have a file xcv.the content is :
accelerate
i want a script which will run 1000 times in loop and changing the value to
accelerate to
acceler
in 1st loop and in 2nd loop it will be again
accelerate and so on . (6 Replies)
Discussion started by: Aditya.Gurgaon
6 Replies
LEARN ABOUT SUNOS
echo
echo(1B) SunOS/BSD Compatibility Package Commands echo(1B)NAME
echo - echo arguments to standard output
SYNOPSIS
/usr/ucb/echo [-n] [argument]
DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output.
echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi-
ronment variables.
For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows:
o echo your current-working-directory's full pathname
o pipe the output through tr to translate the path's embedded slash-characters into space-characters
o pipe that output through wc -w for a count of the names in your path.
example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w"
See tr(1) and wc(1) for their functionality.
The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be invoked if
the user calls echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape
characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the black-slashed escape characters, and ksh's
echo() also understands a as the audible bell character; however, these commands do not have an -n option.
OPTIONS -n Do not add the NEWLINE to the output.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscpu |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5)NOTES
The -n option is a transition aid for BSD applications, and may not be supported in future releases.
SunOS 5.10 3 Aug 1994 echo(1B)