I have been tasked with getting an AIX 4.3.3 box to backup to a NAS applicance device which provides NFS service. It is an intermediary repository so that other tools can transport the resulting backup file to another NAS Applicance at a remote site on a secondary frame connection.
Anyone have... (10 Replies)
Dear All
I am using cat command for concatenating multiple files. Some time i also use append command when there are few files.
Is there faster way of concatenating multiple files(60 to 70 files) each of
156 MB or less/more.:)
Thanx (1 Reply)
Hi guys,
I have a redhat laptop and a sun solaris 8 server networked together
I created an nfs share on the sun server and backed up an image of the Redhat laptop to it.
The Hard disk size of the laptop is 40Gb but I have about 38Gb free space on the sun server. So I compressed the image... (9 Replies)
Hi All,
I have some 80,000 files in a directory which I need to rename. Below is the command which I am currently running and it seems, it is taking fore ever to run this command. This command seems too slow. Is there any way to speed up the command. I have have GNU Parallel installed on my... (6 Replies)
Hi Everyone,
we are running rsync with --backup mode, Are there any rsync options to remove backup folders on successful deployment?
Thanks in adv. (0 Replies)
Hello,
I was wondering if anyone knows a faster way to search and compare strings and dates from 2 files?
I'm currently using "for loop" but seems sluggish as i have to cycle through 10 directories with 10 files each containing thousands of lines.
Given:
-10 directories
-10 files... (4 Replies)
Good evening
Im new at unix shell scripting and im planning to script a shell that removes headers for about 120 files in a directory and each file contains about 200000
lines in average.
i know i will loop files to process each one and ive found in this great forum different solutions... (5 Replies)
We are taking backup of our application data(cobol file system, AIX/unix) before and after EOD job runs. The data size is approximately 260 GB in biggest branch. To reduce the backup time, 5 parallel execution is scheduled through control-m which backups up the files in 5 different *.gz. The job... (2 Replies)
We are taking backup of our application data(cobol file system, AIX/unix) before and after EOD job runs. The data size is approximately 260 GB in biggest branch. To reduce the backup time, 5 parallel execution is scheduled through control-m which backups up the files in 5 different *.gz. The job... (8 Replies)
I have a very big input file <inputFile1.txt> which has list of mobile no
inputFile1.txt
3434343
3434323
0970978
85233
... around 1 million records
i have another file as inputFile2.txt which has some log detail big file
inputFile2.txt
afjhjdhfkjdhfkd df h8983 3434343 | 3483 | myout1 |... (3 Replies)
Discussion started by: reldb
3 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS --debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.8.4 2005-05-03 SHELL-QUOTE(1p)