Hello all
i have big test file that has allot of structure text something like this :
<foo1 *.html>
<blah action>
somthing 1
somthing 2
</blah>
</foo1 >
now i will like to insert 2 more lines of text below the <blah action>
so it will be like :
<foo1... (1 Reply)
Hi All,
I have a file that I need to be able to find a pattern match on a line, search that line for a text pattern, and replace that text.
An example of 4 lines in my file is:
1. MatchText_randomNumberOfText moreData ReplaceMe moreData
2. MatchText_randomNumberOfText moreData moreData... (4 Replies)
i am very new to UNIX
plz help me in this scenario
i have two text files as below
file1.txt
name=Rajakumar.
Discipline=Electronics and communication.
Designation=software Engineer.
file2.txt
name=Kannan.
Discipline=Mechanical.
Designation=CADD Design Engineer.
... (6 Replies)
hai
i am very new to unix.
i am having two files like this.
first.properties
cache.ZA.TL_CCY=SELECT trim(CCY_CODE)||trim(COUNTRY_CODE)||trim(CITY_CODE) AS... (4 Replies)
To trim 3rd field in for all the lines of a file and replace the modified string in that particular field.
For example i have a file called Temp.txt having content
Temp.txt
-----------------
100,234,M1234
400,234,K1734
300,345,T3456
----------------
So the modified file output should... (4 Replies)
Dear All,
i want to search particular string and want to replance next line value.
following is the test file.
search string is
tmp,???
,10:1 "???" may contain any 3 character it should remain the same and next line replace with ,10:50
tmp,123 --- if match tmp,??? then... (3 Replies)
Hello, I am using awk to match text in a tab separated field and am able to do so when matching the exact word. My problem is that I would like to match any sequence of text in the tab-separated field without having to match it all. Any help will be appreciated. Please see the code below.
awk... (3 Replies)
I need to search the file using strings "Request Type" , " Request Method" , "Response Type" and by using result set find the xml tags and convert into a single line?. below are the scenarios.
Cat test
Nov 10, 2012 5:17:53 AM
INFO: Request Type
Line 1.... (5 Replies)
Hi,
Need your help for this scripting issue I have. I am not really good at this, so seeking your help.
I have a file looking similar to this:
Hello, i am human and name=ABCD.
How are you?
Hello, i am human and name=PQRS.
I am good.
Hello, i am human and name=ABCD.
Good bye.
Hello, i... (12 Replies)
Hi Everyone,
I have a requirement in ksh where i have a set of files in a directory. I need to search each and every file if a particular string is present in the file, delete that line and replace that line with another string expression in the same file.
I am very new to unix. Kindly help... (10 Replies)
Discussion started by: Pradhikshan
10 Replies
LEARN ABOUT MOJAVE
su
SU(1) BSD General Commands Manual SU(1)NAME
su -- substitute user identity
SYNOPSIS
su [-] [-flm] [login [args]]
DESCRIPTION
The su utility requests appropriate user credentials via PAM and switches to that user ID (the default user is the superuser). A shell is
then executed.
PAM is used to set the policy su(1) will use. In particular, by default only users in the ``admin'' or ``wheel'' groups can switch to UID 0
(``root''). This group requirement may be changed by modifying the ``pam_group'' section of /etc/pam.d/su. See pam_group(8) for details on
how to modify this setting.
By default, the environment is unmodified with the exception of USER, HOME, and SHELL. HOME and SHELL are set to the target login's default
values. USER is set to the target login, unless the target login has a user ID of 0, in which case it is unmodified. The invoked shell is
the one belonging to the target login. This is the traditional behavior of su.
The options are as follows:
-f If the invoked shell is csh(1), this option prevents it from reading the ``.cshrc'' file.
-l Simulate a full login. The environment is discarded except for HOME, SHELL, PATH, TERM, and USER. HOME and SHELL are modified as
above. USER is set to the target login. PATH is set to ``/bin:/usr/bin''. TERM is imported from your current environment. The
invoked shell is the target login's, and su will change directory to the target login's home directory.
- (no letter) The same as -l.
-m Leave the environment unmodified. The invoked shell is your login shell, and no directory changes are made. As a security precau-
tion, if the target user's shell is a non-standard shell (as defined by getusershell(3)) and the caller's real uid is non-zero, su
will fail.
The -l (or -) and -m options are mutually exclusive; the last one specified overrides any previous ones.
If the optional args are provided on the command line, they are passed to the login shell of the target login. Note that all command line
arguments before the target login name are processed by su itself, everything after the target login name gets passed to the login shell.
By default (unless the prompt is reset by a startup file) the super-user prompt is set to ``#'' to remind one of its awesome power.
ENVIRONMENT
Environment variables used by su:
HOME Default home directory of real user ID unless modified as specified above.
PATH Default search path of real user ID unless modified as specified above.
TERM Provides terminal type which may be retained for the substituted user ID.
USER The user ID is always the effective ID (the target user ID) after an su unless the user ID is 0 (root).
FILES
/etc/pam.d/su PAM configuration for su.
EXAMPLES
su man -c catman
Runs the command catman as user man. You will be asked for man's password unless your real UID is 0.
su man -c 'catman /usr/share/man /usr/local/man'
Same as above, but the target command consists of more than a single word and hence is quoted for use with the -c option being passed
to the shell. (Most shells expect the argument to -c to be a single word).
su -l foo
Simulate a login for user foo.
su - foo
Same as above.
su - Simulate a login for root.
SEE ALSO csh(1), sh(1), group(5), passwd(5), environ(7), pam_group(8)HISTORY
A su command appeared in Version 1 AT&T UNIX.
BSD September 13, 2006 BSD