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Full Discussion: Replacing specific entry using sed
Top Forums Shell Programming and Scripting Replacing specific entry using sed Post 302758343 by sunnyd1 on Saturday 19th of January 2013 03:39:45 AM
Old 01-19-2013
Linux sed fid and replace example
Hello Guys ,

I am new to shell scripting.

Below is what i have for you guys

file name employee.txt where I have a ^M at the end of the file , i can remove ^M usind sed

Solution 1Example 1 :
Code:
sed 's/ ^M/ /gi' employee.txt

Solution 2 Example 2 : :
Code:
1,$s/ ^M/ /g

But here is a catch on 1 thing ,where we need to apply the same concept to a entire folder where we have more than 50 file having the same problem of ^M to be removed , how can we do that ?

Problem :
Code:
ls -lrt /root/sunny1/
                              
                               
-rw-r--r-- 1 root root  3325 Dec  7  2011 install.log.syslog
-rw-r--r-- 1 root root 26725 Dec  7  2011 install.log
-rw------- 1 root root   949 Dec  7  2011 anaconda-ks.cfg
-rw-r--r-- 1 root root  1071 Oct 30 20:13 emplst.sh
drwxr-xr-x 2 root root  4096 Dec 10 20:51 Desktop
-rw-r--r-- 1 root root  1669 Jan 10 17:53 natasha_access.sh
-rw-r--r-- 1 root root   108 Jan 10 17:54 natasha_others
-rw-r--r-- 1 root root   109 Jan 10 17:56 last_sasha.sh
-rw-r--r-- 1 root root   140 Jan 10 18:02 emplsts_1_4.sh
drwxr-xr-x 2 root root  4096 Jan 10 18:33 redhat
-rw-r--r-- 1 root root   812 Jan 10 18:37 emplsts.sh
-rw-r--r-- 1 root root    59 Jan 14 18:52 emp1.sh
-rw-r--r-- 1 root root   549 Jan 19 12:55 employee.txt
-rw-r--r-- 1 root root   549 Jan 19 13:14 n_employee.txt
-rw-r--r-- 1 root root   507 Jan 19 13:20 f_employee.txt
[root@localhost ~]#

Last edited by Scrutinizer; 01-19-2013 at 05:18 AM.. Reason: code tags
 

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LEARN ABOUT X11R4

systemd-volatile-root.service

SYSTEMD-VOLATILE-ROOT.SERVICE(8)			   systemd-volatile-root.service			  SYSTEMD-VOLATILE-ROOT.SERVICE(8)

NAME

       systemd-volatile-root.service, systemd-volatile-root - Make the root file system volatile

SYNOPSIS

       systemd-volatile-root.service

       /lib/systemd/systemd-volatile-root

DESCRIPTION

       systemd-volatile-root.service is a service that replaces the root directory with a volatile memory file system ("tmpfs"), mounting the
       original (non-volatile) /usr inside it read-only. This way, vendor data from /usr is available as usual, but all configuration data in
       /etc, all state data in /var and all other resources stored directly under the root directory are reset on boot and lost at shutdown,
       enabling fully stateless systems.

       This service is only enabled if full volatile mode is selected, for example by specifying "systemd.volatile=yes" on the kernel command
       line. This service runs only in the initial RAM disk ("initrd"), before the system transitions to the host's root directory. Note that this
       service is not used if "systemd.volatile=state" is used, as in that mode the root directory is non-volatile.

SEE ALSO

       systemd(1), systemd-fstab-generator(8), kernel-command-line(7)

systemd 237													  SYSTEMD-VOLATILE-ROOT.SERVICE(8)
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