Hi, I'm very new to Unix, but have been given a command to type in which is :
this command is quite a basic one and sends an email containing the contents of the file "success.txt" to whatever email I put in with the subject of the email after the -s and works fine. What I would like to do is replace the subject of the email with the current folder name, but don't want to type it in directly I want Unix to enter the follder name automatically, is this possible, maybe by using the "pwd" command?
If you're using a shell that accepts basic Bourne shell syntax (such as a Bourne shell, bash, or ksh), you can just use:
Hi,
I am unable to see all files in a current directory when use "ls -lrt" command
it is giving error message as below ( I think this current directory is having about 500 files)
<CONTROL /home/ckanth/sri>ls -lrt
UX:ls: ERROR: Out of memory: Insufficient or invalid memory
But when i... (3 Replies)
Hi,
when I execute some simple commands on my solaris system, I am getting the following warning message:
Could anybody tell me what could be the reason
Ex:- If I give the command,
which ls
Warning: cannot determine current directory
... (15 Replies)
I want to perform a task on all the files in the current directory but I'd like to loop through them one at a time. How do I tell it to give me the first filename? (2 Replies)
Hi,
Am trying for a script which should delete more than 15 days older files in my current directory.Am using the below piece of code:
"find /tmp -type f -name "pattern" -mtime +15 -exec /usr/bin/ls -altr {} \;"
"find /tmp -type f -name "pattern" -mtime +15 -exec /usr/bin/rm -f {} \;"
... (9 Replies)
Hi All
I was wondering what is the most efficient way to find files in the current directory(that may contain 100,000's files), that meets a certain specified file type and of a certain age.
I have experimented with the find command in unix but it also searches all sub directories. I have... (2 Replies)
I wanna make a backup tarball. I wanna write a script that makes tarball of the current directory.
There are lots of files so I cant type all files, I wanna make the tarball by excluding few files.
Like there 1000 files in a directory I wanna create a tarball containing 98 files of that... (1 Reply)
Hello,
I want to use the string with the current directory in my awk command.
I tried: 'pwd=system("pwd")'
but it doesn't work. can please help somebody? (2 Replies)
Hi all,
How do I print the name of my current working directory only to screen?
Not pwd!
For example, if I was in /home/work I am looking for 'work' only (4 Replies)
I wanted to send an email to the client whenever there is failed record created in a /feed/HR-76/failed folder after processing of feed file.
I can find out with the help of below script that what is the new file created but that file didn't make just 15 minutes before.
... (1 Reply)
Discussion started by: puneetkhullar
1 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)