05-06-2010
Parse file and copy value to variable in sh script.
Hi,
I need to parse a simple text file like below and store the word that starts with BR* to a variable say $BRno. I need to do this in sh script.
NOTE: the length of the numbers following BR is not constant (eg: it could be BR1234 or BR22233). And there is only 1 BRxxxxx in a file at a given time.
.txt file:
BR276828
Apple
Orange
CHERRY
test.txt
Gurus, Please help as soon as you can !
Thanks !
*************************
This is not a homework. I am working on a few automation scripts at work. My manager just added a few simple requirements at the last minute today. This is one of them. And I need to roll-out the scripts tomorrow. I need to get a return value from a perl script to a sh script(calling the perl script from here). So I was tyring this method for that: copying the output of the perl script to a file, and trying to parse that file from the sh script to get the BRXXX to a variable that I will print out.
This is all probably confusing, that's why I simply just asked what I need without the background. Sorry about that !
Thanks fo any help !
********************
Last edited by script2010; 05-06-2010 at 09:52 PM..
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.txt file:
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LEARN ABOUT ULTRIX
return
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)