Assuming we have a file called "file_which_does_exist" and we do not have a file called "file_which_does_not_exist" and we are looking for a string "string". There are three possible reply codes.
I have a file called get_columns.sh that I would like to replace $2 with $3. I have the following sed command written that works
sed s/'$3'/'$2'/g get_columns.sh > output.txt
However, when I try the command below, the file is empty.
sed s/'$3'/'$2'/g get_columns.sh > get_columns.sh
... (2 Replies)
I am looking for all the header files (*.h).. which as per documentation of the UNIX system shouldbe there.
I am using
find / -name *.h -print
But it does't give anything.
My question is under what condition the "find" condition will fail to find the file?
What is the work around.
... (4 Replies)
Below is a chuck of a shell script I have written. The problem I am having is with the test section. I want to test the status of the f60gen command but since I'm running the output of the f60gen command into tee, the test command is actually testing "tee" and not "f60gen". Is there a way to... (5 Replies)
Hello all,
I develop an ERP application that runs on a number of *nix flavors. This application had been around for quite a number of years.
As part of the application launch, we do a check for a background process using the following command:
ps -ef | grep -v grep | grep mi\/ba | grep... (6 Replies)
Hi
i have done a copy operation (Storing one content of a file to another)
For example :
cp Fileone Filetwo
Now is it possible to know the status of the execution of that command ??
Without manually checking the Filetwo contents ??
Thanks in advance . (5 Replies)
Hi
there is below code in my code , i did not understand what does it mean
RC=0
RC=$(( RC | $? ))
Please help me regarding this
---------- Post updated at 02:22 AM ---------- Previous update was at 01:46 AM ----------
Below is more example of the code (2 Replies)
Hi,
Want to log the output of command & check the exit status to find whether it succeeded or failed.
> ls abc
ls: abc: No such file or directory
> echo $?
1
> ls abc 2>&1 | tee log
ls: abc: No such file or directory
> echo $?
0
Tee commands changes my exit status to be always... (7 Replies)
Hi All,
I am doing an export and import (datapump) of 4 schema. I know we can do an export of 4 schema in one command. But just want to know how to check the exit status if i do the export/import of 4 schema in different commands in background. Please suggest.
Thanks,
Mani (1 Reply)
Hi All,
I am using RHEL 6 linux in my lab server and I am new to RHEL6 features.
lab1:root> uname -a
Linux lab1 2.6.32-358.18.1.el6.x86_64 #1 SMP Fri Aug 2 17:04:38 EDT 2013 x86_64 x86_64 x86_64 GNU/Linux
I am facing a peculiar issue in my lab machine. When I connected via Opsware Global... (0 Replies)
Discussion started by: go2suresh1979
0 Replies
LEARN ABOUT X11R4
exit
exit(1) User Commands exit(1)NAME
exit, return, goto - shell built-in functions to enable the execution of the shell to advance beyond its sequence of steps
SYNOPSIS
sh
exit [n]
return [n]
csh
exit [ ( expr )]
goto label
ksh
*exit [n]
*return [n]
DESCRIPTION
sh
exit will cause the calling shell or shell script to exit with the exit status specified by n. If n is omitted the exit status is that of
the last command executed (an EOF will also cause the shell to exit.)
return causes a function to exit with the return value specified by n. If n is omitted, the return status is that of the last command exe-
cuted.
csh
exit will cause the calling shell or shell script to exit, either with the value of the status variable or with the value specified by the
expression expr.
The goto built-in uses a specified label as a search string amongst commands. The shell rewinds its input as much as possible and searches
for a line of the form label: possibly preceded by space or tab characters. Execution continues after the indicated line. It is an error to
jump to a label that occurs between a while or for built-in command and its corresponding end.
ksh
exit will cause the calling shell or shell script to exit with the exit status specified by n. The value will be the least significant 8
bits of the specified status. If n is omitted then the exit status is that of the last command executed. When exit occurs when executing
a trap, the last command refers to the command that executed before the trap was invoked. An end-of-file will also cause the shell to exit
except for a shell which has the ignoreeof option (See set below) turned on.
return causes a shell function or '.' script to return to the invoking script with the return status specified by n. The value will be the
least significant 8 bits of the specified status. If n is omitted then the return status is that of the last command executed. If return
is invoked while not in a function or a '.' script, then it is the same as an exit.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO break(1), csh(1), ksh(1), sh(1), attributes(5)SunOS 5.10 15 Apr 1994 exit(1)