06-14-2015
Quote:
Originally Posted by
Don Cragun
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10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
THe following is the output when i run the command ls -ltr
can anyone explain the meaning of the field in red
-rw-r----- 3 orca orca 20924 Sep 08 19:21 BTL027SASI.gnt
-rw-r----- 3 orca orca 20924 Sep 08 19:21 BTL027RITD.gnt
-rw-r----- 3 orca orca ... (2 Replies)
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when I write the command ls -ltr it shows the detail of the files. Like
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-rwxrwxrwx 1 mqsiadm mqbrkrs 666 Aug 30 06:12 dspmq_script
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i have to list some file with certain exemption
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4. Shell Programming and Scripting
I am writing a script where in i have to log into a remote machine and check for necessary file by typing (ls -ltr *200505) (this gets all 05month of 2008 yr files) and if files are found get them to the local machine. If not found print a message saying no files on local machine.
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Hi,
I need to parse the listing (ls -ltr) in a given directory and get a particular value to see the success or failure. e.g
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Hi ,
Server details –
Machine hardware: sun4u
OS version: 5.9
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When I put ls –ltr command I get –
/users/testuser> ls -ltr
-rw-rw-r-- 1 testuser dba 76 Jan 13 2009 ftp.scr
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Hi ,
Whenever i try to execute ls with l as an option the system hangs.
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8. Programming
Hi All,
I have one requirement, where I need to have output of ls -l command sorted on 1) first on filename 2) last modified time ( descending ) - latest change first.
I am not able to figure out how to do it..
Also I dont have a way to change Date display for ls -ltr command..
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9. Shell Programming and Scripting
help me (2 Replies)
Discussion started by: sonu pandey
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10. Shell Programming and Scripting
Could you please let me know what each of the output fields in ls -ltr for a directory imply.
Example :
drwxrwsr-x 4294967295 infamgr infagrp 2147549184 Sep 2 17:01 job
basically would want to know 4294967295 and 2147549184 (6 Replies)
Discussion started by: infernalhell
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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)