Deleting first line and lastline of a file using sed
Delete last line of a file. =========================== sed ‘$d’ < input_file > output_file Delete First line of a file. ============================ sed ‘1d’ input_file > output_file
Category: Linux/Unix
Adding a new disk and mount it automatically. on VMWARE LINUX
Adding a new disk and mount it automatically. Step-1 Add virtual disk to vmware server. ========================================= Step-2 Bounce the box ========================================= Step-3 Make sure the new hard drive should be identified by your linux box. ========================================= As following example, you can see I added /dev/sdc worth of 20GB. [root@oem ~]# fdisk -l Disk /dev/sda: 10.7…
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Sending email with file attachment.
Single File Attachemnt: ======================= cat test.dat|uuencode test.dat|mailx -s “subject” mailid Multiple file Attachment: ========================= (uuencode INPUTFILE $FILE_STRING.out ;uuencode INPUTFILE $FILE_STRING.err )|mailx -s “SUBJECT” $EMAIL_ID (uuencode INPUTFILE check_dr_notok.log ;uuencode INPUTFILE check_dr_ok.log )|mailx -s “Test multuple attachment” pmehta@1800flowers.com (uuencode check_dr_notok.log check_dr_notok.log ;uuencode check_dr_ok.log check_dr_notok.log)|mailx -s “Test multuple attachment” pmehta@1800flowers.com
Kernel Parameters for Solaris
* pre Solaris 10 * ——————- To view the current values of these parameters, enter the following commands: # grep noexec_user_stack /etc/system # /usr/sbin/sysdef | grep SEM # /usr/sbin/sysdef | grep SHM * Post Solaris 10 * =================== In Solaris 10, you are not required to make changes to the /etc/system file to implement the…
checking redhat linux version
cat /etc/redhat-release
More info about /proc folder and its relation with processes.
One of the most interesting directories on any Linux system is /proc, a virtual filesystem that provides a plethora of information on the hardware of the running system, and of the various processes running. In fact, many programs such as ps and top obtain their information by mining /proc. Some well-known virtual files in /proc…
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process id based files and processes
Following command can be used to find files used by specific processid. $ pfiles process_id Following command can be used to find files used by specific processid. $ pmap process_id
cold backup scripts to copy locally
==>cat SOX_BACKUP.ksh #!/usr/bin/ksh # +———————————————————————— # | Usage : ./SOX_BACKUP.ksh # | Description : Cold Backup of Database. Automatically starts/stop the DB. # +———————————————————————— . /export/home/oracle/FLRSTB.env sqlplus -s /nolog /mnt/ORACLEBACKUP/files.log connect / as sysdba set term off set feedback off; set head off; set pagesize 150 select name||’ /mnt/ORACLEBACKUP/FLRPRD’ from v$datafile; exit; EOF cat /mnt/ORACLEBACKUP/files.log|grep…
Removing Ctrl-M from end of line using vi
ou can remove the ^M by doing the following: Bring the datafile into the Unix editor vi. In command mode you would type in: :1,$s/^V^M// Make sure you are entering ‘control V’ and ‘control M’. The ‘control V’ says to accept the next character exactly as I type it. Adding the two slashes at the…
replacing ^M character when passing files from Windows to Unix
To replace the ^M ‘s on the screen in vi type :1, $ s/r/