11-06-2008
10 More Discussions You Might Find Interesting
1. Solaris
Hi how do i grep only a part of the line from a file from all the lines.
file:
asdfgh 543212376 nag
lkjh abhilash 543757858
How do i grep and print only 543212376 and 543757858
Can i grep something like 543* and print only that. (3 Replies)
Discussion started by: 123nagendrabhi
3 Replies
2. Shell Programming and Scripting
Hi,
In a file FILE, there is a line like this one
MOLECULE C2 H2
I want to extract "C2 H2". I can do it in two step in a script :
VARIABLE="`grep MOLECULE FILE`" # Assign "MOLECULE C2 H2"
VARIABLE=`echo ${VARIABLE/"MOLECULE "}` # Remove "MOLECULE ".
Then,
$echo $VARIABLE
gives
C2... (6 Replies)
Discussion started by: tipi
6 Replies
3. UNIX for Dummies Questions & Answers
Hello All. I have an output file which contains the phrase "Total DFT Energy =" and then a number. This occurs many times in the output file, and what I want is to pipe the numbers (which are all different) to a file so I can plot them. How do I grep "Total DFT Energy =" and then get the numbers... (3 Replies)
Discussion started by: EinsteinMcfly
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4. Shell Programming and Scripting
Hi,
Suppose,
DBconnection=jdbc: oracle:thin:@(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=x.x.x.x)(PORT=YYYY))(LOAD_BALANCE=yes)(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=project_db1)))
This is a part of a file <filename> . I Need to get the value of SERVICE_NAME from this line…
The... (4 Replies)
Discussion started by: Dpu
4 Replies
5. Shell Programming and Scripting
Hi I just started on GNU Grep with regex and am finding it very challenging and need to ask for help already...
here is the problem, I have a page (MYFILE) which consists of the following....
<div>
<input type="hidden" name="__EVENTTARGET" id="__EVENTTARGET" value="" />
<input type="hidden"... (2 Replies)
Discussion started by: noobie74645
2 Replies
6. UNIX for Dummies Questions & Answers
<exp code="12556a" message="ok, fine4" displayMessage="jksdfj ksd" \>
<exp code="123456a" message="ok, 2fine" displayMessage="jksdfj ksd" \>
<exp code="12dfgda" message="1ok, fine" displayMessage="jksdfj ksd" \>
now I want to cut code attribute and message attribute, such as ... (2 Replies)
Discussion started by: vincent_W
2 Replies
7. Shell Programming and Scripting
Hi,
I have 80 large files, from which I want to get a specific value to run a Bash script. Firstly, I want to get the part of a file which contains this:
Name =A
xxxxxx
yyyyyy
zzzzzz
aaaaaa
bbbbbb
Value = 57
This is necessary because in a file there are written more lines which... (6 Replies)
Discussion started by: wenclu
6 Replies
8. Shell Programming and Scripting
I need some help. I would like to read in a text file.
Take a variable such as ROW-D-01, compare it to what's in one line in the text file such as PROD/VM/ROW-D-01 and only input PROD/VM into a variable without the /ROW-D-01.
Is this possible? any help is appreciated. (2 Replies)
Discussion started by: xChristopher
2 Replies
9. UNIX for Dummies Questions & Answers
Hi,
I have a file with thousands of lines as below
INSERT INTO T_DIM_CLNT(CLNT_KY,CLNT_OBJ_ID,ISI_CLNT_ID,OPERN_ID,CLNT_NM,PRMRY_SIC_CD,PRMRY_SIC_DSC,RET_AGE_NBR,REC_CRT_TS,REC_DATA_EXTRC_TS,ETL_LOG_KY)
VALUES ( ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)... (5 Replies)
Discussion started by: sudhakar T
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10. Shell Programming and Scripting
Hello,
I am java command from a shell script which will generate the below output on the command prompt
signature Base64 :... (10 Replies)
Discussion started by: chetanojha
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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