The FILE is a text plane file.
The KEY is a variable to configure, for example:
And the NEW_VALUE is the string next to symbol "=".
The script must change a value of a "KEY". For example, supose i have the next file:
I execute the next comand: ./script 'KEY2' 'BAZINGA' 'myFile.txt'
The result must be:
I did the next script:
The problem is: just works well, when there is not space between "KEY" and "=" and "VALUE". For example "KEY1=HOLA". I need to this work with the next format "KEY1 =HOLA". How can i change my script?
Hi,
need some help from all of you as i'm a beginner in shellscript. Currently i have a textfile(filename.txt) with the below content:
TOTAL: 30
RECORDS: 300
anyone one know how do i plug out the value of 30 and put into a variable(var1) and 300 into another variable(var2)?I'm coding using... (7 Replies)
i have text files named like vho1.txt, vho2.txt... vho15.txt.In all there are 15 in number.
each file has strings like
\Movies On Demand\Action & Adventure|X-Men: Wolverine|2009-09-29 00:01:00|2010-03-24 23:59:00|Active|3
\Movies On Demand\Free\Free1|My movie 14|2010-01-11 00:00:00|2010-03-01... (5 Replies)
Tag allerseits
Ich habe ein umfangreiches Script. Darin möchte ich zu Beginn ein textfile lesen. Den ersten Satz.
Dann kommen mehrere Instruktionen und dann soll wieder gelesen werden. Den zweiten Satz.
Etc.
Ich kann also das herkömmliche while read xyz / do ... done nicht benützen.
... (0 Replies)
Hi, I'm starting a little project with a shell script but I'm don't know how to do it. Maybe someone can help me.
I have un text file like this :
I'd like to do a script who will extract from my file from @ADDLINE1@ to @ADDLINE4@ only and I have no idea how to do this.
Any idea ?
... (7 Replies)
i am having a text file like below
rama
surya
pandu
latha
singh
raja
i want to get the new file from 3 to 5
i.e
pandu
latha
singh
please help (1 Reply)
So...
I have a text file that contains this (hex.txt):
#8C7CA6
#6C70A5
#75777C
#959A90
#7A7C6C
#867DAB
#80867E
#8A87BD
#6B71C6
#8F8A79
#9A9DCE
#7E87D0
#69709E
#82968C
#7C8F81
#A3917B (5 Replies)
My first post, so don't kill me :)
Say i open some textfile with some example like this.
on the table are handy, bread and wine
Now i know exactly what is in and i want to separate and sorted it in terminal to an existing file with another 2 existing lines in like this:
table
plane ... (3 Replies)
I am very new to to shell scripting and facing a problem that I can't seem to solve. I want to write a bash script that edits file1.txt and saves it as file2.txt.
This is what the files should look like:
file1:
textline1
textline2
startCopy
copyThis
endCopy
textline3
textline4
file2:
... (6 Replies)
I want to save a variablecontent in a Textfile. How can i do that?
These works only with ls shell_exec("ls > text.txt");Please use code tags, thanks (2 Replies)
Discussion started by: Linuxmann
2 Replies
LEARN ABOUT OPENSOLARIS
catch
catch(1T) Tcl Built-In Commands catch(1T)__________________________________________________________________________________________________________________________________________________NAME
catch - Evaluate script and trap exceptional returns
SYNOPSIS
catch script ?varName?
_________________________________________________________________DESCRIPTION
The catch command may be used to prevent errors from aborting command interpretation. The catch command calls the Tcl interpreter recur-
sively to execute script, and always returns without raising an error, regardless of any errors that might occur while executing script.
If script raises an error, catch will return a non-zero integer value corresponding to the exceptional return code returned by evaluation
of script. Tcl defines the normal return code from script evaluation to be zero(0), or TCL_OK. Tcl also defines four exceptional return
codes: 1 (TCL_ERROR), 2 (TCL_RETURN), 3 (TCL_BREAK), and 4 (TCL_CONTINUE). Errors during evaluation of a script are indicated by a return
code of TCL_ERROR. The other exceptional return codes are returned by the return, break, and continue commands and in other special situa-
tions as documented. Tcl packages can define new commands that return other integer values as return codes as well, and scripts that make
use of the return -code command can also have return codes other than the five defined by Tcl.
If the varName argument is given, then the variable it names is set to the result of the script evaluation. When the return code from the
script is 1 (TCL_ERROR), the value stored in varName is an error message. When the return code from the script is 0 (TCL_OK), the value
stored in resultVarName is the value returned from script.
If script does not raise an error, catch will return 0 (TCL_OK) and set the variable to the value returned from script.
Note that catch catches all exceptions, including those generated by break and continue as well as errors. The only errors that are not
caught are syntax errors found when the script is compiled. This is because the catch command only catches errors during runtime. When
the catch statement is compiled, the script is compiled as well and any syntax errors will generate a Tcl error.
EXAMPLES
The catch command may be used in an if to branch based on the success of a script.
if { [catch {open $someFile w} fid] } {
puts stderr "Could not open $someFile for writing
$fid"
exit 1
}
The catch command will not catch compiled syntax errors. The first time proc foo is called, the body will be compiled and a Tcl error will
be generated.
proc foo {} {
catch {expr {1 +- }}
}
SEE ALSO break(1T), continue(1T), error(1T), return(1T), tclvars(1T)KEYWORDS
catch, error
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWTcl |
+--------------------+-----------------+
|Interface Stability | Uncommitted |
+--------------------+-----------------+
NOTES
Source for Tcl is available on http://opensolaris.org.
Tcl 8.0 catch(1T)