I am seeing a strange behavior of the 'find' command on AIX. As you can see,
the find command sometimes finds the file and sometimes does not based on how
many characters I specified between the wildcards.
I know all of these issues
can be resolved by using double quotes like "*est*". But I am posting this to
see if any of you can explain why it is able to find the file when I
specified *estf* but could not when I used *est*.
Hi, it seems I've got an hw error on more than one device.
I use an AIX 5.2.
this is the problem desc.
Description
DISK OPERATION ERROR
Probable Causes
DASD DEVICE
Failure Causes
DISK DRIVE
DISK DRIVE ELECTRONICS
I wish to read the SYSLOG file, where is it ?
tk (1 Reply)
Hello everyone,
I was trying to install db2 on Ubuntu, but got messed up with manual installation and Synaptic. At the moment, I find myself with a filesystem where DB2 is NOT installed ( I removed it with a sudo rm :o ) and with Synaptic still flagging db2exc as installed. The problem is that... (1 Reply)
I have this in my .profile:
stty erase `tput kbs`
which sets erase to ^H for a vt and ^? for an xterm.
This has been fine up until now on all systems whether I login using a vt terminal emulator or an xterm.
On this new system though, if I log in directly using an xterm, backspace doesn't... (1 Reply)
:mad:
Dear All,
Here I am sending the error msg that come to to the terminal when I attempt to start my
linux redhat 2.4.18-3 system.
cheking file system
/boot clean
/home : clean
/usr :containing file system with errors,check forced
error reading block 35924(attempt to... (3 Replies)
May God never give you the bane of working on Solaris.
Now, I am trying to run this simple shell script:
#!/bin/sh
input="a
b
c"
data="123"
while read eachline
do
data="$data$eachline"
done << EOF
$(echo "$input")
EOF... (2 Replies)
Hi,
I have a passwd file with 3 users belonging to the the root group (gid=0), but the group file does not list these users as members of the root group?
Shoud I be worried and apart from manually changing it, how can it be remediated?
thx
Norgaard (1 Reply)
here in one of the server the lvol4 is having 20G and used space is 181M
but it showing 98% used kindly advice any one can i run fsck -y after unmounted that lvol4
/dev/mapper/vg01-lvol4
20G 19G 418M 98% /var/opt/fedex
aymara.emea $ du -sh /var/opt/fedex/... (3 Replies)
We have a Sun Server running Solaris 10 and Veritas Cluster Server. The RAID Volumes in the Server (/ , swap, opt, var, usr) are managed by VxVm and UFS is grown on all these volumes.
Lately the system has been crashing due to an inconsistency in the opt filesystem. Upon reboot we did a fsck on... (1 Reply)
Hi All,
I am running a parallel processing on aggregating a file. I am splitting the process into 7 separate parallel process and processing the same input file and the process will do the same for each 7 run. The issue I am having is for some reason the 1st parallel processes complete first... (7 Replies)
Discussion started by: arunkumar_mca
7 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)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 v5.16.3 2010-06-11 SHELL-QUOTE(1)