Sponsored Content
Full Discussion: purge xterm
Top Forums UNIX for Dummies Questions & Answers purge xterm Post 18319 by LivinFree on Wednesday 27th of March 2002 02:53:11 AM
Old 03-27-2002
Hmm... You want to get rid of your command history?
There is no real reason you should ever do this, and even if you do, a good admin can still catch what you're doing.
Depending on your shell, look in .history, .sh_history, or .bash_history. You can usually edit this file with a text editor, or null it out. Keep in mind though, that whatever command you used to do this will now show up in your history. And if you're using the bash shell, you have to log out first, log in, then edit, since the bash versions I've seen do not write to a file until the session closes.

Since I can't think of a good reason to be doing this, I'm not going to tell you how to do it without leaving traces...
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

script for purge

Hi , I want to purge 7 days older data from a list of data sorted on date in a log file... Can anyone provide me with the shell script for the same.. Thanks, Jaz (1 Reply)
Discussion started by: JP003
1 Replies

2. Shell Programming and Scripting

script to archive and purge

Hi, I am writing a shell script for archive data from a table. The design is as follows. Step 1: Execute the select query and extract the data into a text file. Step 2: The primary key for this table is TRACKING_NUM, TRACKING_NUM_SUFFIX, TIMESTAMP_UPDATED. So These three fields will be read... (1 Reply)
Discussion started by: kmanivan82
1 Replies

3. Shell Programming and Scripting

Purge files and archive

Hi Friends, I have an urgent requirement. I have many files huge in size which has occupied almost the entire disk space. The files are not being moved to the archived folder. But at present I need to purge those files, new to shell scripting, not sure how to proceed. Eg. Directory... (3 Replies)
Discussion started by: unx100
3 Replies

4. Red Hat

find help with directory purge.

Hi, I have a purge directory called /b02/purge which has backed up directories like this drwxrwxr-x 17 root root 4096 Jan 5 15:33 purge1 drwxrwxr-x 17 root root 4096 Jan 5 16:21 purge.new1 drwxrwxr-x 15 root root 4096 Jan 5 16:21 purge.new2 drwxrwxr-x 17 root root 4096 Jan 12... (3 Replies)
Discussion started by: uxadmin007
3 Replies

5. Shell Programming and Scripting

purge logs, keep the 30 lasts

Hi, I have to make a script to purge logs in a directory (this script will run automatically every day) and this script has to keep just the 30 last files. So I want it to count all the files in the directory, find the 30 most recents and delete the others. I just started shell scripting and... (4 Replies)
Discussion started by: jblecrou
4 Replies

6. UNIX for Advanced & Expert Users

Purge MAil file

Hi, merry christmas. on AIX 6.1, the file /var/spool/mail/user, should/can be purged manually ? Any commande line to purge it ? Thanks. (2 Replies)
Discussion started by: big123456
2 Replies

7. Emergency UNIX and Linux Support

Purge in oracle9i

From morning we are facing some issues in tablespaces in oracle9i. Tried deleting some huge records... but even thought it is still giving tablespcases in full. Then i tried and googling ... found we need to purge recyclebin of oracle.. but thats not woking in oracle9i... can any one... (1 Reply)
Discussion started by: greenworld123
1 Replies

8. Shell Programming and Scripting

Menu for Purge

I have these commands that help me find and delete files over certain days. How can I build a menu to list the files, and then hit y for yes to delete or no? find /logs/212/abinitio/prod/mfs/partitions/part0/mfs_12way_001/mfs_12way/sncrpt/main/ -name "*dat" -mtime +1 -exec ls -ltr {} \; find... (3 Replies)
Discussion started by: xgringo
3 Replies

9. UNIX for Dummies Questions & Answers

Apt-get install --purge

Hello, i would like to know what is the use of that command apt-get install --purgeI understand the use of --purge while using with remove parameter, but i don't get it when it's about installing. Enlight me please ! Thx ---------- Post updated 09-03-16 at 11:35 AM ---------- Previous... (0 Replies)
Discussion started by: Purgator
0 Replies
PMDABASH(1)						      General Commands Manual						       PMDABASH(1)

NAME
pmdabash - Bourne-Again SHell trace performance metrics domain agent SYNOPSIS
$PCP_PMDAS_DIR/bash/pmdabash [-C] [-d domain] [-l logfile] [-I interval] [-t timeout] [-U username] configfile DESCRIPTION
pmdabash is an experimental Performance Metrics Domain Agent (PMDA) which exports "xtrace" events from a traced bash(1) process. This includes the command execution information that would usually be sent to standard error with the set -x option to the shell. Event metrics are exported showing each command executed, the function name and line number in the script, and a timestamp. Additionally, the process identifier for the shell and its parent process are exported. This requires bash version 4 or later. A brief description of the pmdabash command line options follows: -d It is absolutely crucial that the performance metrics domain number specified here is unique and consistent. That is, domain should be different for every PMDA on the one host, and the same domain number should be used for the same PMDA on all hosts. -l Location of the log file. By default, a log file named bash.log is written in the current directory of pmcd(1) when pmdabash is started, i.e. $PCP_LOG_DIR/pmcd. If the log file cannot be created or is not writable, output is written to the standard error instead. -s Amount of time (in seconds) between subsequent evaluations of the shell trace file descriptor(s). The default is 2 seconds. -m Maximum amount of memory to be allowed for each event queue (one per traced process). The default is 2 megabytes. -U User account under which to run the agent. The default is the unprivileged "pcp" account in current versions of PCP, but in older versions the superuser account ("root") was used by default. INSTALLATION
In order for a host to export the names, help text and values for the bash performance metrics, do the following as root: # cd $PCP_PMDAS_DIR/bash # ./Install As soon as an instrumented shell script (see INSTRUMENTATION selection below) is run, with tracing enabled, new metric values will appear - no further setup of the agent is required. If you want to undo the installation, do the following as root: # cd $PCP_PMDAS_DIR/bash # ./Remove pmdabash is launched by pmcd(1) and should never be executed directly. The Install and Remove scripts notify pmcd(1) when the agent is installed or removed. INSTRUMENTATION
In order to allow the flow of event data between a bash(1) script and pmdabash, the script should take the following actions: #!/bin/sh source $PCP_DIR/etc/pcp.sh pcp_trace on $@ # enable tracing echo "awoke, $count" pcp_trace off # disable tracing The tracing can be enabled and disabled any number of times by the script. On successful installation of the agent, several metrics will be available: $ pminfo bash bash.xtrace.numclients bash.xtrace.maxmem bash.xtrace.queuemem bash.xtrace.count bash.xtrace.records bash.xtrace.parameters.pid bash.xtrace.parameters.parent bash.xtrace.parameters.lineno bash.xtrace.parameters.function bash.xtrace.parameters.command When an instrumented script is running, the generation of event records can be verified using the pmevent(1) command, as follows: $ pmevent -t 1 -x '' bash.xtrace.records host: localhost samples: all bash.xtrace.records["4538 ./test-trace.sh 1 2 3"]: 5 event records 10:00:05.000 --- event record [0] flags 0x19 (point,id,parent) --- bash.xtrace.parameters.pid 4538 bash.xtrace.parameters.parent 4432 bash.xtrace.parameters.lineno 43 bash.xtrace.parameters.command "true" 10:00:05.000 --- event record [1] flags 0x19 (point,id,parent) --- bash.xtrace.parameters.pid 4538 bash.xtrace.parameters.parent 4432 bash.xtrace.parameters.lineno 45 bash.xtrace.parameters.command "(( count++ ))" 10:00:05.000 --- event record [2] flags 0x19 (point,id,parent) --- bash.xtrace.parameters.pid 4538 bash.xtrace.parameters.parent 4432 bash.xtrace.parameters.lineno 46 bash.xtrace.parameters.command "echo 'awoke, 3'" 10:00:05.000 --- event record [3] flags 0x19 (point,id,parent) --- bash.xtrace.parameters.pid 4538 bash.xtrace.parameters.parent 4432 bash.xtrace.parameters.lineno 47 bash.xtrace.parameters.command "tired 2" 10:00:05.000 --- event record [4] flags 0x19 (point,id,parent) --- bash.xtrace.parameters.pid 4538 bash.xtrace.parameters.parent 4432 bash.xtrace.parameters.lineno 38 bash.xtrace.parameters.function "tired" bash.xtrace.parameters.command "sleep 2" FILES
$PCP_PMCDCONF_PATH command line options used to launch pmdabash $PCP_PMDAS_DIR/bash/help default help text file for the bash metrics $PCP_PMDAS_DIR/bash/Install installation script for the pmdabash agent $PCP_PMDAS_DIR/bash/Remove undo installation script for pmdabash $PCP_LOG_DIR/pmcd/bash.log default log file for error messages and other information from pmdabash PCP ENVIRONMENT
Environment variables with the prefix PCP_ are used to parameterize the file and directory names used by PCP. On each installation, the file /etc/pcp.conf contains the local values for these variables. The $PCP_CONF variable may be used to specify an alternative configura- tion file, as described in pcp.conf(5). SEE ALSO
bash(1), pmevent(1) and pmcd(1). Performance Co-Pilot PCP PMDABASH(1)

Featured Tech Videos

All times are GMT -4. The time now is 03:08 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy