04-11-2005
Counting Number of times a File is accessed
Hi,
I need to count the number of times a script is accessed from within the script. Is it possible ?
Example: I have a script called lo.sh and i execute the script for the first time, then the counter variable declared inside the lo.sh should increment by 1. For every execution the counter has to be incremented by 1.
Any help is appreciated !!!!!!!!
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hello. First time poster here. I have a huge file of IP numbers. I am trying to output only the class b of the IPs and rank them by most common and output the total # of duplicate class b's before the class b. An example is below:
12.107.1.1
12.107.9.54
12.108.3.89
12.109.109.4
12.109.6.3
... (2 Replies)
Discussion started by: crunchtime
2 Replies
2. Programming
Hi All,
We can find the maximum of open file descriptors in hold with respect to a process.
As default size was 256 (with getrlimit) and the hard limt was 65536
I tried changing the limit to 1024(with setrlimit)
successfully changed the limit
but still I couldnt have as many open file... (3 Replies)
Discussion started by: matrixmadhan
3 Replies
3. UNIX for Dummies Questions & Answers
I am looking for a bash command that counts the number of times a character appears in a file. For example "I am a newbie, trying to learn shell script". Then the command counts the number of e and gives them as 4. Also I want one that counts the number of times a character in a string is replaced.... (2 Replies)
Discussion started by: #moveon
2 Replies
4. UNIX for Dummies Questions & Answers
I have looked around on the internet and still i am no wiser as to how to show the number of files in a directory that have been accessed this week and also that as a percentage.
Any help would be much appreciated. (5 Replies)
Discussion started by: RAFC_99
5 Replies
5. Shell Programming and Scripting
i should use this script runs how many times before ?
how can i do_? (3 Replies)
Discussion started by: utoptas
3 Replies
6. Shell Programming and Scripting
Hi All,
I have written a script on this but it does not do the requisite job. My requirement is this:
1. I have two kinds of files each with different extensions. One set of files are *.dat (6000 unique DAT files all in one directory) and another set *.dic files (6000 unique DIC files in... (1 Reply)
Discussion started by: shoaibjameel123
1 Replies
7. UNIX for Dummies Questions & Answers
I'm trying to count the number of times each word in the file exist
for example if the file has:
today I have a lot to write, but I will not go for it. The main thing is that today I am looking for a way to get each word in this file with a word count after it specifying that this word has... (4 Replies)
Discussion started by: shnkool
4 Replies
8. Solaris
Hi,
I want to write a script with dtrace to count the number of read and write from and to a file. I use this for reading:
dtrace -n 'syscall::read:entry { @ = count(); }'
but it doesn'f give me a single answer. The result is always increasing.
:wall:
Please use next time
code tags... (0 Replies)
Discussion started by: golabi
0 Replies
9. Homework & Coursework Questions
1. The problem statement, all variables and given/known data:
Develop a shell script that accepts a phrase and counts the number of times that it is repeated in a specific website.
Note: Im not sure if it's the whole website, or just a specific page but im guessing its thewhole website.
... (2 Replies)
Discussion started by: Zakerii
2 Replies
10. Shell Programming and Scripting
I need to figure out how many times a location (columns 1 and 2) is present within a group of files. I figured using a combination of 'while read' and 'grep' I could count the number of instances but its not working for me.
cat file.txt | while read line
do
grep $line *08-new.txt | wc -l... (6 Replies)
Discussion started by: ncwxpanther
6 Replies
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)