i downloaded a text file from metalab.unc.edu called sh.txt and in this reference manual it refers to shell scripting exit status .. at the end of one of the examples that author gave an exit status of 127..
to what does a 127 exit status refer too and what is its purpose in the code.
moxxx68 (1 Reply)
I hope one of you smart people out there can help me with what seems like a real simple questing but I can't quite figure out.
In a script I am doing a cmp on two files. I am trying to check the exit status with an if statement but can't seem to figure out the syntax. If the exit status is 1 I... (4 Replies)
Hi guys,
I'm new to unix but loving it!! BUT this is driving me nuts as i can't work out the best way to do it.
I have a while true loop that i use to monitor something. For my own reasons in ths script i have disabled the CTRL C using the trap command. But i want to put in a option to exit... (5 Replies)
Hi all,
I'm running a program which return 1 upon success.
But when encounters problem shell return 's '1' .
How to differentiate between them the shell return value and script return value.
Ex. function fn return '1' if executed successfully and '0' if failed. But when if shell encounters... (1 Reply)
I'm preparing for exam and one of exams is to write own test command...
I wonder if in unix is a command which just returns exit code you specify..
I know I can easily write a function like this:
exStatus() {
return $1
}
-> my question is rather theoretical
thank you! (9 Replies)
I have a shell script (#!/bin/sh) that interacts with Appworx and Banner Admin. In my script I want to check the exit status of awrun before continuing. awrun can run for 10 seconds or it can run for over a minute. So my question is, will it go through my if statement before awrun may even be... (2 Replies)
Hi ,
I have a bash script , which does the network configuration. Messages from this script are dumped on console as well as stored in a log file .
This script is invoked from a C code using system call . The script returns different exit code , to indicate different error cases. The... (1 Reply)
Hi All,
I am trying to create a zip file with all the txt files(these are in large number) in the current directory. I am able to do this operation sucessfully.
After this i want to get the status of the tar command executed and do accordingly. When i am trying with the below code, the status... (3 Replies)
I'm extremely new to shell scripting so I apologize for the crudeness of my descriptions. I am editing a script that will write files (e.g. Job0_A.com, Job1_A.com, etc.) and then run them through a program called gaussian (computational chemistry program). The script will then take the output files... (10 Replies)
Hi all,
I am trying to use a script (a.sh) which is calling another script(b.sh).
And I want to use the exit code(set by me) of b.sh in a.sh.
I am using this in b.sh
#!/bin/sh
<-- code -->
if ; then
exit 0
else
exit 1
fiBut... (2 Replies)
Discussion started by: Raj999
2 Replies
LEARN ABOUT OPENSOLARIS
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 5.11 3 Aug 1994 echo(1B)