9 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
I was practicing writing simple loops as I am a new bash user and I created this script, which turned out to be an endless loop where the echo output does not stop and I do not see where my mistake is.
#!/bin/bash
echo 'enter a number from 1 to 100'
read number
while
do
... (2 Replies)
Discussion started by: goldenlinx
2 Replies
2. UNIX for Dummies Questions & Answers
Hi guys
So I've got this PERL script that for one reason or another I need to run as a user other than the user that created the script.
When I su - to another user the script won't run and doesn't give me any output as to why. No permission denied or anything like that.
I've chmod 777'd the... (5 Replies)
Discussion started by: Jaymoney
5 Replies
3. Shell Programming and Scripting
Hi All,
I've written a script to read 2 files and compare the contents using while loop but somehow when $line is not found in test2, the script will continue looping.
Below is my code, pls advise what could went wrong
TIA
Nick
for line in test1.txt | while read line
do
grep -i... (4 Replies)
Discussion started by: Nick1971
4 Replies
4. Shell Programming and Scripting
First time post. I did a search so I didn’t see this specific issue. It seems to be a head scratcher for me.
I have an hourly job that on rare occasions, gets into an endless loop.
I’ve tried different scenarios but the current version does basically the following.
Find all the *.arc files and... (18 Replies)
Discussion started by: Sylvan303
18 Replies
5. Shell Programming and Scripting
When finding a string in files within a directory, one can use this:
grep -r "searchstring" dir/subdir/ > listofoccurrences.txt
For brevity sake one can enter the intended directory and use this:
grep -r "searchstring" . > listofoccurrences.txt
which as I found out leads to an endless loop,... (2 Replies)
Discussion started by: figaro
2 Replies
6. Shell Programming and Scripting
Hi,
PHP user here. I'm using an endless loop to perform to mimic a cron. The script does something every 20 minutes. It sleep()s in the meantime.
I have various checks that ensure that only instance can run, including a "gentleman agreement" locked file.
However, I'd like to make sure... (2 Replies)
Discussion started by: jjshell
2 Replies
7. Shell Programming and Scripting
Hi,
I'm pretty new to UNIX shell scripting and need some help. We have an Informatica interface that dumps any files that have errors into a directory. I need to check that directory periodically for any of up to 9 files that might be in it and run a specific process for each file found. The... (3 Replies)
Discussion started by: JeffR
3 Replies
8. Shell Programming and Scripting
Hi ,
I am new to linux and also also to shell scripting.
I have one shell script which unpacks .tgz file and install software on machine.
When this script runs I want to insert id,filename,description(which will be in readme file),log(which will be in log file) and name of unpacked folder... (1 Reply)
Discussion started by: ring
1 Replies
9. Shell Programming and Scripting
I need a quick script that will serve as a sort of "real time monitor" for watching some log files. I am using Bourne shell in HP-UX 10.20. I have basically created a script that never ends, unless of course I manually terminate it. Here's the script (it's called qhistory):
clear
echo "REAL... (3 Replies)
Discussion started by: cdunavent
3 Replies
shell(1F) FMLI Commands shell(1F)
NAME
shell - run a command using shell
SYNOPSIS
shell command [command] ...
DESCRIPTION
The shell function concatenate its arguments, separating each by a space, and passes this string to the shell ($SHELL if set, otherwise
/usr/bin/sh).
EXAMPLES
Example 1: A sample output of shell command.
Since the Form and Menu Language does not directly support background processing, the shell function can be used instead.
`shell "build prog > /dev/null &"`
If you want the user to continue to be able to interact with the application while the background job is running, the output of an exe-
cutable run by shell in the background must be redirected: to a file if you want to save the output, or to /dev/null if you don't want to
save it (or if there is no output), otherwise your application may appear to be hung until the background job finishes processing.
shell can also be used to execute a command that has the same name as an FMLI built-in function.
NOTES
The arguments to shell will be concatenate using spaces, which may or may not do what is expected. The variables set in local environments
will not be expanded by the shell because "local" means "local to the current process."
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
sh(1), attributes(5)
SunOS 5.10 5 Jul 1990 shell(1F)