hi
i am unable to connect to FTP server.My FTP password contain one special charecter '#'.it might be the problem for connecting.please clarify regarding this special charecter in the password.i need some information about restricted charecters in the shell script.
thanks (5 Replies)
we are ftping zipped up files from the development server to the production server daily.The files are in this format filename.dat.20061231.12131.gz
I have to unzip the file (i can do that with gunzip) and then strip out the timestamp after the .dat extension.
I can do something like this
... (4 Replies)
Hi All
I have a requirement where using a script I grep a file for string (KSG/Password in below ) , get the next line which is the password and I need replace the whole line of unknown special charecters (encrypted password) with another line as given below .
As in below i need to get... (12 Replies)
Hi
I have a requirement as follows. My Input file is as follows.
COL1,COL2,COL3,COL4,COL5
987,2,3~7~5,400~468~598,0005~4687~5980
1111,2,2~7,400~468,0005~897
Expected OUTPUT
============
COL1,COL2,COL3,COL4,COL5
987,2,3,400,0005
987,2,7,468,4687
987,2,5,598,5980
1111,2,2,400,0005... (6 Replies)
Hi
We have a sed command line to remove “\0” characters from specific file. This command redirects the output to a new different file. Is there a way to open the same file, remove special characters and close it, this avoids creating a new intermediate file for redirection.
Command:
sed... (1 Reply)
Hi,
I need to grep for text between " 01/Aug" and " 02/Aug" in a text file.
The awk command usually fails with the error saying "line too long"
Is there other simpler ways to achieve this ? (12 Replies)
Hi,
I am using solaris 10 OS.Please help me out with the commands needed in below two scenarios.
1)How to delete the existing files in the tar file.
suppose i have a main tarfile named application.tar and it contains a file called ingres.tar.
what is the command to remove ingres.tar... (2 Replies)
Hi,
This code works for me for file in $(find /path/to/dir -type f); do tr -d '\r' <$file >temp.$$ && mv temp.$$ $file done
However, i want this code to skip all .class files.
Can you help me with the modified code. (2 Replies)
Hi,
Below is my script where i wish to remove '^M' charecters from all files in the directory and sub-directories. Below code which is not able to remove all '^M' characters from all my files in all sub directories.
find properties/* -type f -exec sh -c '
for file do
tr -d '^M' < $file >... (3 Replies)
Discussion started by: mohtashims
3 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)