This is an extract from a script that i am trying to run.
for tim in "2005:00:" "2005:01:" "2005:02:" "2005:03:" "2005:04:" "2005:05:"; do
FormString="$tim"
echo "grep '$FormString' access.10Aug-1201AM"
count=`grep "$FormString" access.10Aug-1201AM | wc -l`
... (1 Reply)
hi guys,
i was hoping you could help me out with the following
im designing a help site for my work colleagues and would like a little script which would do a grep to check if an application is running on unix
for example this is what i do on unix
ps -ef | grep mqm
and this tells me if... (4 Replies)
Hi,
I am new to this - I have a unix command (below) that I would like to make automated. I would like the script to run the below command line but would like user input for '\' and '\' as these values will change depending on what i'm searching for. Is this possible? if so please help.
... (13 Replies)
Hi.
I am trying to extract the output of the first few lines of a continuos sh script.
The when i run it, i wont to grep the the first 20 lines of it for an entry and basically do a crtl z out of it or to that effect, and output the results to a text file.
I basically want to script... (5 Replies)
I need help in the following script. I want to grep the sql errors insert into the error table and exit the shell script if there is any error, otherwise keep running the scripts.
Here is my script
#!/bin/csh -f
source .orapass
set user = $USER
set pass = $PASS
cd /opt/data/scripts
echo... (2 Replies)
Hi
i wrote script use it as watchdog ( i mean it check another program (pooya) whenever that was killed (closed or crashed) it run another script (pooya_start.sh) to start it,
this script work fine and do the job for me , i need help of an expert to tell me (exact command) how to change this... (8 Replies)
Hello,
I have a command and would like to make that as a script. How do I do that?
my command is:
grep -Eo +\.+\.+\.+.
and i want to have that like grepscript.sh x.txt > IP.txt
Can somebody help me? (3 Replies)
i have this line of code that looks for the same file if it is currently running and returns the count.
`ps -eaf -o args | grep -i sfs_pcard_load_file.ksh | grep -v grep | wc -l`
basically it is assigned to a variable
ISRUNNING=`ps -eaf -o args | grep -i sfs_pcard_load_file.ksh |... (6 Replies)
Hallo gentlemen,
i've a problem removing lines from txt file. To make it simple, here is an example:
TEXT1.TXT --- contents:
9.9.9.9 geek.net
1.1.1.1 geek.com
2.2.2.2 leet.net
TEXT2.TXT --- contents:
geek.com
coolbar.org
I simply do:
cat text1.txt | grep -f text2.txt >... (7 Replies)
Hi,
New to scripting and looking for some help.
I am trying to write a script that will search a specified directory for any new or modified files within the last 7 days and display the results. This will be ran daily and emailed?
Thanks (18 Replies)
Discussion started by: Con592
18 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)