Using strings command you would be able to remove special characters from the file.. Thanks, Krishnaprasad -----Original Message----- From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Sadashiv Kulthe Sent: Thursday, December 13, 2007 4:58 PM To: redhat-list@xxxxxxxxxx Subject: Control characters getting displayed in log Hi, I am using redhat servers and have lot modification in installation process for application. It asks many questions on command prompt and take input from user. Reasons why control characters getting logged into logs are - 1. Script has a text-based menu-oriented UI, which uses control sequences to move the cursor around the screen, change the color of the text, etc. Therefore, the logged output contains control characters. 2. The message of a install contains a Ctrl-G character to sound the console bell/beeper (presumably to get the attention of whoever was performing the installation). That character is also logged to /var/log/messages. 3. Messages from Linux RC scripts often contain control sequences to print their status in either green (success) or red (failure). These messages may be logged to /var/log/messages. *I want to avoid control characters getting logged into logs. How can I do this?* Control characters looks like Nov 29 14:25:48 localhostconfig: ^[6 ^[6^[[1;1H Nov 29 14:25:50 localhost config: ^[[6;11H^[[0m^[[30m^[[47m+^[[30m^[[47m--------------^[[0m^[[30m^[[47m+ ^[[31m ^[[30m +^[[30m^[[47m---------------^[[0m^[[30m^[[47m+^[[7;11H| |^[[1m^[[37m^[[40m ^[[8;11H^[[0m^[[30m^[[47m| |^[[1m^[[37m^[[40m ^[[9;11H^[[0m^[[30m^[[47m| |^[[1m^[[37m^[[40m ^[[10;11H^[[0m^[[30m^[[47m| Station on |^[[1m^[[37m^[[40m ^[[11;11H^[[0m^[[30m^[[47m| an already installed and running |^[[1m^[[37m^[[40m ^[[12;11H^[[0m^[[30m^[[47m| |^[[1m^[[37m^[[40m ^[[13;11H^[[0m^[[30m^[[47m| |^[[1m^[[37m^[[40m ^[[14;11H^[[0m^[[30m^[[47m| ^[[37m^[[41m+-----+^[[30m^[[47m ^[[37m^[[41m+----+^[[30m^[[47m |^[[1m^[[37m^[[40m ^[[15;11H^[[0m^[[30m^[[47m| ^[[37m^[[41m|^[[31m^[[47m Yes Nov 29 14:26:10 localhost : ^[[14;22H^[[0m^[[30m^[[47m ^[[15;22H ^[[37m^[[41m+-----+^[[16;22H^[[30m^[[47m ^[[37m^[[41m|^[[31m^[[47m Yes ^[[37m^[[41m|^[[17;23H+-----+^[[16;29H Regards, Sadashiv Kulthe -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
