1. UNIX for Dummies Questions & Answers

I have installed vnc on my computer but do not want every one to be able to incite a vncserver how can I limit users of the vncserver command to only a specifc group? (1 Reply)

2. Shell Programming and Scripting

Hi Friends, I am having a funny problem with grep. When I run grep 'expr' file.txt things work fine. But when try to get the line number using the -n option, i.e, grep -n 'expr' file.txt I get a message, "grep: 0652-226 Maximum line length of 2048 exceeded." If the line has more than... (3 Replies)

3. Shell Programming and Scripting

Hi All, I am using a csh ftp to get all the relevant files i need. When i reduce the number of file to 4 (which is aaa,bbb,ccc,ddd), the script manage to get all the files i need. But when i add "eee" to the mget command, it doesn;t seem to get any files at all. Is there a limit to how many... (0 Replies)

4. AIX

Hi, I'm using AIX version 5.3 currently. I'm trying to create a user id, e.g. andyleong, which the system prompted the length is too long. 1. I would like to know is that the length of user id is limited to maximum 8 characters for AIX. 2. Is it apply to all versions of AIX? If no... (2 Replies)

5. UNIX for Dummies Questions & Answers

I want to find out the record length of a fixed length file? I forgot the command. Any body know? (9 Replies)

6. Cybersecurity

Hello, I am currently trying to limit incoming UDP length 20 packets on a per IP basis to 5 a second using IPTables on a Linux machine (CentOS 5.2). Basically, if an IP is sending more than 5 length 20 UDP packet a second to the local machine, I would like the machine to drop the excess... (1 Reply)

7. Shell Programming and Scripting

I am trying to use the following code: awk '{s=$0;if(length(s) < 750){getline; s=s " " $0}printf("%s\n",s)}' filename but an error shows that 'awk' is too long. Is there a limit to the awk length function? and what could be an alternate solution for long fixed width records? The code... (3 Replies)

8. Shell Programming and Scripting

I am using the code below to list all the Errors files from the directory in the for loop. When the number of files are less then 6000 then it's works fine but if it more than that then for loop fails. for file in `ls $ERR_DIR/PPL_Prov_Engine_Error_*` do memrecno=`cut -f2 -d'|' $file` ||... (6 Replies)

9. Programming

Is there any stabdard limitation on size of a code line in C code? I am interesting in UNIX limitation, particulary on SUN. Thanks! (8 Replies)

10. Shell Programming and Scripting

Hi. I'm trying to learn sed. I want to limit the length of a string. I tried this: sed -n 's/^\(...........................\).*/\1/p' textfile.txt This works fine, but how do I give it as a range rather than putting a hundred dots? I'd like to limit the number of characters to 144 for... (3 Replies)