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Top Forums Shell Programming and Scripting sed Command on Multiple Files and retaining the same file name Post 302969272 by balajesuri on Monday 21st of March 2016 02:34:15 AM
Old 03-21-2016
use sed -i

Code:
[user@host ~]$ cat file
hello
world
[user@host ~]$ sed '1s/..//' file
llo
world
[user@host ~]$ sed -i '1s/..//' file
[user@host ~]$ cat file
llo
world
[user@host ~]$

This User Gave Thanks to balajesuri For This Post:
 

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innetgr(1)							   NSS utilities							innetgr(1)

NAME
innetgr - Check netgroup membership SYNTAX
innetgr [-d domain] [-h host] [-u user] [-v] <netgroup> DESCRIPTION
innetgr checks if the specified user, host or domain is a member of the given netgroup. The program does not produce any output unless the verbose ( -v ) flag is given. The exit status is 0 if the user/host/doman combination is a member of the given netgroup. Exit status is 1 if the combination is not found in the group, and 2 if one of the arguments are invalid. OPTIONS
--domain <domain> | -d <domain> Search in the given domain. --host <host name> | -h <host name> Search for the given host name. --user <user name> | -u <user name> Search for the given user name. --verbose | -v Enable verbose mode --version | -V Show version information. EXAMPLES
To check if the current host is listed in the netgroup allhosts, use this command line: if innetgr -h `uname -n` allhosts ; then echo "Found"; fi CONFORMING TO
A innetgr program first appeared in NetBSD 1.4. AUTHORS
Petter Reinholdtsen <pere@hungry.com> SEE ALSO
getent(1) netgroup(1) innetgr(3) netgroup(5) nsswitch.conf(5) Petter Reinholdtsen 0.7 innetgr(1)
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