I need a non-perl (bash) way to strip the path from a list of "find" results. Below is the perl version which I could use, if I could figure out how to call the script with a variable (like in sh, $1 is the variable passed in ./script variable)
$file = "/path/to/file.txt";
# How do I... (2 Replies)
Hi All,
I am calling a perl program in my shell script as follows.
MY_IN_FILE=ABC.dat
MY_OUT_FILE=XYZ.dat
MY_VARIABLE="SomeValue"
perl mycode.pl $MY_IN_FILE > $MY_OUT_FILE
Question:-
Now I want to pass value of $MY_VARIABLE from script to perl... How do I do that? Can someone... (5 Replies)
Hi All,
I am learning PERL for one of the projects, and in one of these scripts, I read a flat text file and print in the terminal.
The problem is, the text file has a date field. The format is yyyymmdd. I need to display this as dd-mon-yyyy.
Any ideas to do this? Thanks a lot for the... (9 Replies)
Hi all,
i had a code where in user will enter a date in yyyymmdd format.. i didnt use any validation for the date and now the problem is if a user enters date instead of month after year it is proceeding with the code..
like if the date is 20120426 and if the user enters 20122604 it... (4 Replies)
I have an Excel 2007 excel sheet on windows machine and using
Spreadsheet::XLSX I had written a script to read the excel sheet and was successful.
My requirement is I need to generate another excel sheet from the old excel 2007 sheet on unix machine.
Now is it possible to read the excel... (2 Replies)
my $sysdate = strftime('%Y-%m-%d', localtime );
biDeriveByDate('Table_Str',$sysdate,\@lIndx,\@lResVals)
In a perl script, when I'm trying to pass $sysdate to some external function it's not working since $sysdate is passed as a string mentioned above but my function is expecting a date value... (1 Reply)
hello,
i have a lot of C old code I'm updating to C11 with tgmath.h for generic math. the old code has very specific types, real and complex, like cabsl, csinhl, etc
usually for simple bulk replacements i would do something simple like this
perl -pi -e 's/cosl/cos/g' *.c
the reference... (0 Replies)
Hi All,
I have line
,A,FDRM0002,12/21/2017,,0.961751583,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
it contains date in mm/dd/yyyy format i want to change this to yyyymmdd format using perl.
Use code tags, thanks. (8 Replies)
The below perl script parses a variety of formats. If I use the numeric text file as input the script works correctly. However using the alpha text file as input there is a black output file. The portion in bold splits the field to parse f or NC_000023.10:g.153297761C>A into a variable $common but... (3 Replies)
Discussion started by: cmccabe
3 Replies
LEARN ABOUT REDHAT
catch
catch(n) Tcl Built-In Commands catch(n)
__________________________________________________________________________________________________________________________________________________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. Catch calls the Tcl interpreter recursively to exe-
cute 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 one of the exceptional return codes (see tcl.h for
the definitions of code values). If the varName argument is given, then the variable it names is set to the error message from interpret-
ing 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 +- }}
}
KEYWORDS
catch, error
Tcl 8.0 catch(n)