Yes, we can trap the error and show the message to the user based on the return code.
But I wanted the message which can tell user why it is failed and only once. If we give error message to the user that "Something went wrong" that way user have no idea what went wrong.
Since the error message reported from OS have correct reason like :
but is repeated for all the rest of the files. I wanted the message like :
Hello
#!bin/ksh
sqlplus -s system/manager < |grep '^ORA' |uniq
select * from kk;
set echo on
show spool on
end;
/
EOF
save test.sh
sh test.sh
results
ORA-00942: table or view does not exist (3 Replies)
Hi
I'm hoping I could get some help on the following. I'm writing a script which will in turn create an ftp script then excecute it. eg
echo "user $user $pass" > $script
echo "cd $remote_dir" >> $script
echo "bi" >> $script
echo "mput $file" >> $script
echo "bye" >> $script
ftp -n -i $ip... (1 Reply)
I have written a UNIX script that will automatically ftp a file to a server. The problem is when I missed enter information w/in the .txt file that contains the userid/password and what file to transfer, I had no way of capturing the failuer of the file transfer. I verified w/in the script that the... (1 Reply)
Hi,
Can anybody tell me how to error trap an empty line. If i am asked for a password and I hit enter without entering any text, how do i display an error?
Thanks
Kev (6 Replies)
I am writing a program which is something like below:
rsh host1 "rcp file dest:directory"
I am running this script from a machine host2.
host1 has rlogin configuration for host2.
but, dest machine has no rlogin configuration for host1 and fails on remote calls.
Could anyone tell me how... (2 Replies)
Greets all. I'm using Slackware 12.0 with the bash shell. Calling my scripts with /bin/sh...
I'm building gnome-2.18.3 and I have all my build scripts ready and working but I'm calling them from a parent script which executes each child/build script in a certain order (for loop).
I have "set... (6 Replies)
This is gonna sound dumb but...
1 It seems that I cannot use the search function here properly.
In researching to find a solution to an FTP error trapping issue, I go to the search option in the forum and use FTP as a search term and ask it to select all forums to search in..... I get no... (2 Replies)
How can I trap and print "cannot find the pattern" when the grep is unable to find the specified pattern in the file using the for loop below ?
Any help would be appreciated.
bash3.4> cat test_file
apple
orange
pineapple
blackberry
script:
for x in `grep -n "mango" test_file... (4 Replies)
I hope that I can trap curl errors, and have my shell script error out and quit if curl has any sort of problem.
For example, I have the following command in my shell script:
curl --trace -n -v --ftp-ssl ftp://xxx.xxx.xxx.xxx:2122 --user user:password -o /tmp/file.txt
Works great, except... (2 Replies)
Hi,
I have one shell script as below
while read SegList
do
if test -s ${SourceFile_Path}/${Segment_List_Temp}
then
ls -r -1 ${FTP_Path}/${SegList}.DAT.${Datelist}.GZ|cut -d '.' -f2>>${SourceFile_Path}/${List_Temp}
echo "IF above statment Fail I want to Create Emtpy File How to Trapp... (3 Replies)
Discussion started by: samadhanpatil
3 Replies
LEARN ABOUT DEBIAN
bup-margin
bup-margin(1) General Commands Manual bup-margin(1)NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS --predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO bup-midx(1), bup-save(1)BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown-bup-margin(1)