Sponsored Content
Full Discussion: sed issue
Top Forums Shell Programming and Scripting sed issue Post 302576643 by jjb1989 on Friday 25th of November 2011 11:49:37 AM
Old 11-25-2011
sed issue

Hi guys. Can somone advise as to what the problem is with the following sed command?

Code:
1) read -p "Please enter new username you wish to replace old: " new_username
        sed "s/$username/$new_username/" information_file
        ;;

This is one of the case statements included but I'm having trouble with this one. All I want it to do is replace any occurence of a given username in information_file.txt with a new username provided by user. My sed command either does nothing to it or just appends the new username on every line as well as next to the current username.

Many thanks!

P.S. $username has been prompted above the case statement so I doubt that's the problem Smilie
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Issue with sed in script

I have a loop in a script that is given me an error but, when I do it on the command line it works perfectly. The sed statement has to use the variables from a file so the file is partitioned correctly. I am running on HP: <Begin error>: + cat /u01/bteam/CNAM/1121/.partition + read line + +... (3 Replies)
Discussion started by: bthomas
3 Replies

2. UNIX for Dummies Questions & Answers

SED Issue

Can anyone tell me ...on the below listed command cat /mnt/winbox/list_measurement/ds1c/ds1_f.rome_27A03A 2>> error_log | sed -e '1,3d;s/^/27A03A,/' | sed -e "s#\(.*\)#\1 ,$(date +%Y-%m-%d)#g" > /SBS/ds1_f.rome_27A03A The outcome is this: ,2005-08-29 Forestdale,3:02 am MON AUG 29,... (9 Replies)
Discussion started by: Redg
9 Replies

3. Shell Programming and Scripting

Issue with a sed one liner variant - sed 's/ ; /|/g' $TMP1 > $TMP

Execution of the following segment is giving the error - Script extract:- OUT=$DATADIR/sol_rsult_orphn.bcp TMP1=${OUT}_tmp1 TMP=${OUT}_tmp ( isql -w 400 $dbConnect_OPR <<EOF select convert(char(10), s.lead_id) +'|' + s.pho_loc_type, ";", s.sol_rsult_cmnt, ";", +'|'+ s.del_ind... (3 Replies)
Discussion started by: kzmatam
3 Replies

4. Shell Programming and Scripting

Sed Issue....

Can someone help me "port" this to AIX sed? sed '/nas/{n;s/true/false/}' I know it doesn't like the ; but i don't know how else to do it.... never had to sed on an AIX box :D (7 Replies)
Discussion started by: DeviousPete
7 Replies

5. Shell Programming and Scripting

sed issue

Hi All I'm getting this error while executing a sed script sed: 0602-404 Function /</ i\ File from New Cube: cannot be parsed. sed "/</ i\ File from New Cube: />/ i\ File from Old Cube:" difference1.txt > Difference.txt I've a file like this < Y2008 Dec ..... .... ... 345 I want... (6 Replies)
Discussion started by: Celvin VK
6 Replies

6. Shell Programming and Scripting

Issue with Sed Command

Hello , I am trying to replace a word :: complete to Failed . work: complete Sed command which i am using is given below :: sed s/work: complete/Failed/g temp1.txt > temp2.txt (Sed command is grabled if i use the above .. because of space which is there between work: and complete. I... (6 Replies)
Discussion started by: raghav1982
6 Replies

7. Shell Programming and Scripting

Sed Issue

Hi, I am trying to use 3 sed statements in a shell script, but it get foll error. sed : garbage after command. If I use only two sed statements, the script works well. Is there any restriction for sed usage or is there some catch which I am missing. Sample Script is as follows : ... (3 Replies)
Discussion started by: sameersalve
3 Replies

8. Shell Programming and Scripting

one more issue last- sed

hi i have following sed command this replaces "** in filename1 with octal value 007 filename2 when i put it in script it wont work but it works from command line my OS is sun OS ---------- Post updated at 06:38 PM ---------- Previous update was at 06:14 PM ---------- i... (10 Replies)
Discussion started by: er_zeeshan05
10 Replies

9. Shell Programming and Scripting

sed issue

I can't get this code to work, could I get some help... sed -i '' "s:${shLogpath1}${cell}:${shLogpath2}${cell}:g" test.txt Any Ideas, I think I need to separate the variables some how? (2 Replies)
Discussion started by: digitalviking
2 Replies

10. Shell Programming and Scripting

sed issue

I'm trying to change a date in a couple of large files using SED. The problem is when I use the -n parameter, it doesn't actually change the file. When I leave out the -n, it sends the whole file to the screen, but it does appear to change it. The problem is, these files are very large and it... (8 Replies)
Discussion started by: Drenhead
8 Replies
su(1)							      General Commands Manual							     su(1)

Name
       su - substitute a user ID

Syntax
       su [username]

       su - [username]

       su -f [username]

Description
       The  command  requests the password of the specified username.  If the correct password is given, changes to that username without changing
       the current directory.  The user environment is unchanged except for HOME and SHELL which are taken from the password file entry for  user-
       name.   The  shell  that  is  run  is also taken from the password file entry for username.  The new user ID stays in force until the shell
       exits.

       If no username is specified, `root' is assumed.	To remind the superuser of his responsibilities, the shell substitutes `#' for	its  usual
       prompt.

Options
       -f   Prevents from executing the .cshrc file, making start up faster.

       -    Simulates a full login.

Diagnostics
       Sorry
	    An invalid password was supplied for the specified username.

       Unknown login: username
	    The specified username was not found in the passwd database.

       No directory
	    The home directory for the username is not accessible at this time (only with ``-'' argument).

       No shell
	    The shell specified in the passwd database entry for username could not be executed.

       Kerberos initialization failure
	    Consult your system administrator.

       If enhanced security features are enabled the following error messages are also possible:

       Requires secure terminal
	    Attempt to su to UID 0 on a line that is not marked secure in

       User's password has expired
	    Access is denied because the password for username is expired.

       This account is disabled
	    Access is denied because the auth entry corresponding to username is marked disabled.

Files
       Log file of anyone who became
			root, with a date mark.

See Also
       csh(1), sh(1), passwd(5yp), environ(7), edauth(8)
       Security Guide for Administrators
       Security Guide for Users

																	     su(1)
All times are GMT -4. The time now is 03:35 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy