:mad: I did this the other day but one of my support personnel removed my history so i could call it back up to remeber the exact command since i am air-headed at times. I am trying to take a 30 MEG file off the system and drop it to tape then i want to make the file go back to being 0 bytes so... (1 Reply)
I have tried winscp, filezilla to copy data from windows xp SP2 machine to the sun sparc unix machine. However speed is around 120 to 130 kb/sec. I do have lot of files & with large size.
So I switched to windows command prompt & transfered few files using sftp command. Its very fast as compared... (0 Replies)
Hello,
I have two files file1 & file2 containing both lines (1 word per line). I need to extract the lines that are in file1 and not present in file2 and have the result in output file.
i.e :
user>cat file1
line1
line2
line3
line4
line5
user>cat file2
line1
line3
line5
The... (2 Replies)
Hi, I have 7 terabytes of tar files, one for every single day since 1980. Inside these tar files are GRIB files, each with 100+ variables. There's 8 GRIBs in each tar, corresponding to different times of the day. I need 6 friggin variables..., and it takes TWO WEEKS TO EXTRACT ALL THE TAR FILES... (3 Replies)
Hi all,
My sample file is something like this,
ORA-00206: Message 206 not found; product=RDBMS; facility=ORA
ORA-00202: Message 202 not found; product=RDBMS; facility=ORA
ORA-27063: Message 27063 not found; product=RDBMS; facility=ORA
ORA-00206: Message 206 not found; ... (1 Reply)
Hi,
I want to untar all log files from following tarred directory hierarchy
Log_files.tar.gz/subject*.tar.gz/project*/*.log
It means there are subject1.tar.gz to subject9.tar.gz and in those tarred subect directories there are project1 - project5 directories and in those directories there... (2 Replies)
Hi,
I have some files that i want to concatene and put each of lines of this files on a specific position :
File1
AAAAAAA
BBBBBBB
CCCCCCC
File2
DDDDDDD
EEEEEEE
FFFFFFF
File3
GGGGGG
HHHHHH
IIIIII
New file (6 Replies)
Hi
here is my code
for i in `ls *.cmd`
do
msg
aaa imp -U$AAAUSER -P$AAAUSERPWD <$i>>$curdir/import_tap.out -Jutf8
done
I can only get all files with .cmd extension. what i need to get are all the files inside the specific folder
Thanks (2 Replies)
Discussion started by: cmarzan
2 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)