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Full Discussion: Passing a variable to sudo sed command
Top Forums Shell Programming and Scripting Passing a variable to sudo sed command Post 302148074 by Smiling Dragon on Thursday 29th of November 2007 07:28:56 PM
Old 11-29-2007
Quote:
Originally Posted by sachin.tendulka
dataParse(){
line="$@"
name="cat /etc/passwd | grep "$line": | cut -f6 -d':'"
eval $name > sam.txt 2>&1

sudo -u $line sed -n 's/data-1/&/p' $name/test.xml >> sam1.txt

}
This looks a bit broken to me ?
You've got unescaped quotes in the name= line, and you seem to be trying to use the cat... commandline stored in name as part of a filepath in the sudo line... You're also running a farily dangerous grep as you arn't being specific as to which field in the password file to search (so someone with an odd shell or home dir could match incorrectly).

Not understanding what you're after, my guess may be off base, but try something like this to get closer:
Code:
uname=$1
homedir=`egrep "^${uname}:" /etc/passwd | cut -d ':' -f 6`
echo $uname > sam.txt    # But don't know why
sudo -u $uname "sed -n 's/data-1/&/p' ${homedir}/test.xml >> sam1.txt

If you elaborate on what you're after exactly, we can probablt offer more advice Smilie
 

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LEARN ABOUT DEBIAN

csp_helper

csp_helper(1)							  USER COMMANDS 						     csp_helper(1)

  NAME
      csp_helper - A collection of caspar helper scripts

  SYNOPSIS
      csp_install dir (directory) file (file)

      csp_mkdircp dir (directory) file (file)

      csp_scp_keep_mode h ([user@]host) dir (directory) file (file)

      csp_sucp h ([user@]host) dir (directory) file (file)

  DESCRIPTION
      The  scripts  csp_install,  csp_mkdircp,	csp_scp_keep_mode  and csp_sucp are helpers for caspar(7). These scripts typically are not invoked
      directly, but via a Makefile which uses caspar. See the notes on	csp_PUSH  in  caspar(7)  for  information  on  how  to	link  csp_install,
      csp_scp_keep_mode and csp_sucp to caspar.

  install DESCRIPTION
      csp_install creates the required directory (if needed) and installs the file, preserving timestamps. It uses install(1).

  install EXAMPLES
       csp_INSTALL_OPTIONS='--owner=www-data --group=www-data' 
	csp_INSTALL_MODE=ugo=r 
	csp_install /srv/www index.html

       csp_INSTALL_MODE=u=rwx,go= csp_install /usr/local/sbin mkpasswd

  install ENVIRONMENT
      csp_install honors csp_INSTALL_OPTIONS and csp_INSTALL_MODE (default is u=rw,go=r).

  mkdircp DESCRIPTION
      csp_mkdircp calls mkdir(1) and cp(1).

  scp_keep_mode DESCRIPTION
      csp_scp_keep_mode  uses  ssh to copy a file to a remote host, keeping its file permission mode. The trick used is a combination of mktemp(1)
      and mv(1).  Useful if you'd like to be sure a file gets installed e.g. group writable, without fiddling with permission bits on  the  remote
      host.

  scp_keep_mode EXAMPLE
	chmod g+w rc
	csp_scp_keep_mode root@gandalf /etc/uruk rc

  scp_keep_mode ENVIRONMENT
      csp_scp_keep_mode honors csp_SSH ("ssh" by default).

  sucp DESCRIPTION
      csp_sucp calls cat(1) from within sudo(1) from within ssh(1). This allows one to copy files to accounts on hosts one can only reach by call-
      ing sudo on the ssh-reachable remote host.

      Typically, one wants to install a root-owned file, but one does not want to allow access to the root-account directly  from  ssh.  Typically
      sudo is used as an extra line of defense.

  sucp EXAMPLES
      Some examples:

	csp_sucp rms@bilbo /etc fstab

	csp_sucp monty-python commit/ trailer.txt

  sucp BUGS
      If  NOPASSWD  is	not  set in the sudoers(5) file, and one's timestamp is expired, csp_sucp will forward the sudo password prompt. The given
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  AUTHOR
      Joost van Baal-Ili

  SEE ALSO
      caspar(7) The caspar homepage is at http://mdcc.cx/caspar/ .

  csp_helper 20120514						      14 mai 2012						       csp_helper(1)
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