Shell Scripting-6

More on commands Example
Type more than one command [shell_test@localhost ~]$ ls;pwd
Desktop Documents Download listoffiles Music Pictures Public Templates Videos
/home/shell_test
[shell_test@localhost ~]$
Sending a Command to the Background [shell_test@localhost ~]$ date > dateoftoday &
[1] 4653
[shell_test@localhost ~]$ ls
dateoftoday Desktop Documents Download listoffiles Music Pictures Public Templates Videos
[1]+ Done date > dateoftoday
[shell_test@localhost ~]$ cat dateoftoday
Thu Nov 19 07:55:22 IST 2009
[shell_test@localhost ~]$
The ps Command [shell_test@localhost ~]$ ps
PID TTY TIME CMD
4592 pts/0 00:00:00 bash
4660 pts/0 00:00:00 ps
[shell_test@localhost ~]$ ps -f
UID PID PPID C STIME TTY TIME CMD
501 4592 4583 0 07:48 pts/0 00:00:00 -bash
501 4661 4592 0 07:57 pts/0 00:00:00 ps -f
[shell_test@localhost ~]$ ps -e
PID TTY TIME CMD
1 ? 00:00:01 init
2 ? 00:00:00 kthreadd
3 ? 00:00:00 migration/0
4 ? 00:00:00 ksoftirqd/0
5 ? 00:00:00 watchdog/0
6 ? 00:00:00 migration/1
7 ? 00:00:00 ksoftirqd/1
8 ? 00:00:00 watchdog/1
9 ? 00:00:00 events/0
10 ? 00:00:00 events/1
11 ? 00:00:00 cpuset
12 ? 00:00:00 khelper
13 ? 00:00:00 netns
14 ? 00:00:00 async/mgr
15 ? 00:00:00 kintegrityd/0
16 ? 00:00:00 kintegrityd/1
17 ? 00:00:00 kblockd/0
18 ? 00:00:00 kblockd/1
19 ? 00:00:00 kacpid
20 ? 00:00:00 kacpi_notify
21 ? 00:00:00 ata/0
22 ? 00:00:00 ata/1
23 ? 00:00:00 ata_aux
24 ? 00:00:00 ksuspend_usbd
25 ? 00:00:00 khubd
26 ? 00:00:00 kseriod
27 ? 00:00:00 khungtaskd
28 ? 00:00:00 pdflush
29 ? 00:00:00 pdflush
30 ? 00:00:00 kswapd0
31 ? 00:00:00 aio/0
32 ? 00:00:00 aio/1
33 ? 00:00:00 crypto/0
34 ? 00:00:00 crypto/1
40 ? 00:00:00 kpsmoused
41 ? 00:00:00 kstriped
42 ? 00:00:00 ksnapd
43 ? 00:00:00 usbhid_resumer
60 ? 00:00:00 scsi_eh_0
61 ? 00:00:00 scsi_eh_1
73 ? 00:00:00 kdmflush
74 ? 00:00:00 kdmflush
75 ? 00:00:00 kjournald2
84 ? 00:00:00 kauditd
162 ? 00:00:00 udevd
285 ? 00:00:00 scsi_eh_2
286 ? 00:00:00 scsi_eh_3
299 ? 00:00:01 scsi_eh_4
306 ? 00:00:00 scsi_eh_5
336 ? 00:00:00 bluetooth
891 ? 00:00:00 hd-audio0
962 ? 00:00:00 kmpathd/0
963 ? 00:00:00 kmpathd/1
964 ? 00:00:00 kmpath_handlerd
989 ? 00:00:00 kjournald
1479 ? 00:00:00 auditd
1481 ? 00:00:00 audispd
1482 ? 00:00:00 sedispatch
1506 ? 00:00:00 rsyslogd
1525 ? 00:00:00 rpcbind
1539 ? 00:00:00 dbus-daemon
1549 ? 00:00:00 avahi-daemon
1550 ? 00:00:00 avahi-daemon
1559 ? 00:00:00 cupsd
1580 ? 00:00:00 acpid
1588 ? 00:00:00 hald
1591 ? 00:00:00 console-kit-dae
1592 ? 00:00:00 hald-runner
1683 ? 00:00:00 hald-addon-inpu
1712 ? 00:00:00 hald-addon-cpuf
1713 ? 00:00:00 hald-addon-acpi
1714 ? 00:00:01 hald-addon-stor
1730 ? 00:00:00 pcscd
1743 ? 00:00:00 NetworkManager
1747 ? 00:00:00 nm-system-setti
1748 ? 00:00:00 wpa_supplicant
1760 ? 00:00:00 rpc.statd
1787 ? 00:00:00 rpciod/0
1788 ? 00:00:00 rpciod/1
1797 ? 00:00:00 rpc.idmapd
1831 ? 00:00:00 bluetoothd
1850 ? 00:00:00 sshd
1874 ? 00:00:00 ntpd
1902 ? 00:00:00 krfcommd
1915 ? 00:00:00 rpc.rquotad
1918 ? 00:00:00 lockd
1919 ? 00:00:00 nfsd4
1920 ? 00:00:00 nfsd
1921 ? 00:00:00 nfsd
1922 ? 00:00:00 nfsd
1923 ? 00:00:00 nfsd
1924 ? 00:00:00 nfsd
1925 ? 00:00:00 nfsd
1926 ? 00:00:00 nfsd
1927 ? 00:00:00 nfsd
1930 ? 00:00:00 rpc.mountd
1976 ? 00:00:00 crond
1992 ? 00:00:00 atd
2000 ? 00:00:00 gdm-binary
2001 tty4 00:00:00 mingetty
2002 tty5 00:00:00 mingetty
2003 tty2 00:00:00 mingetty
2004 tty3 00:00:00 mingetty
2005 tty6 00:00:00 mingetty
2042 ? 00:00:00 gdm-simple-slav
2043 tty1 00:04:08 Xorg
2064 ? 00:00:00 dbus-launch
2112 ? 00:00:00 devkit-power-da
2114 ? 00:00:00 devkit-daemon
2135 ? 00:00:00 gdm-session-wor
2161 ? 00:00:00 gnome-keyring-d
2180 ? 00:00:00 gnome-session
2193 ? 00:00:00 dbus-launch
2194 ? 00:00:00 dbus-daemon
2269 ? 00:00:03 gconfd-2
2273 ? 00:00:00 gnome-settings-
2281 ? 00:00:03 metacity
2286 ? 00:00:16 pulseaudio
2287 ? 00:00:01 gnome-panel
2290 ? 00:00:00 gconf-helper
2292 ? 00:00:00 gvfsd
2305 ? 00:00:00 gvfs-fuse-daemo
2309 ? 00:00:01 nautilus
2311 ? 00:00:00 bonobo-activati
2313 ? 00:00:00 blueman-applet
2315 ? 00:00:00 seapplet
2318 ? 00:00:00 bluetooth-apple
2324 ? 00:00:00 nm-applet
2327 ? 00:00:00 im-settings-dae
2329 ? 00:00:00 gdu-notificatio
2331 ? 00:00:00 python
2333 ? 00:00:01 devkit-disks-da
2345 ? 00:00:00 gpk-update-icon
2353 ? 00:00:00 devkit-disks-da
2364 ? 00:00:00 notification-da
2403 ? 00:00:00 gnome-volume-co
2439 ? 00:00:00 kerneloops-appl
2453 ? 00:00:00 gnome-power-man
2496 ? 00:00:00 kerneloops
2497 ? 00:00:00 gconf-im-settin
2506 ? 00:00:00 gvfsd-trash
2509 ? 00:00:00 gvfs-gdu-volume
2513 ? 00:00:02 wnck-applet
2516 ? 00:00:00 trashapplet
2521 ? 00:00:00 gvfs-gphoto2-vo
2529 ? 00:00:00 gnome-keyboard-
2532 ? 00:00:08 clock-applet
2535 ? 00:00:00 gdm-user-switch
2539 ? 00:00:01 tomboy
2540 ? 00:00:00 notification-ar
2547 ? 00:00:00 obex-data-serve
2549 ? 00:00:00 gvfsd-burn
2638 ? 00:00:00 gnome-screensav
2681 ? 00:00:00 dhclient
2729 ? 00:00:00 sendmail
2731 ? 00:00:00 sendmail
4413 ? 00:00:02 kchmviewer
4415 ? 00:00:00 run-mozilla.sh
4430 ? 00:00:52 firefox
4533 ? 00:00:05 npviewer.bin
4562 ? 00:00:00 Terminal
4563 ? 00:00:00 gnome-pty-helpe
4565 pts/0 00:00:00 bash
4583 pts/0 00:00:00 su
4592 pts/0 00:00:00 bash
4662 pts/0 00:00:00 ps
[shell_test@localhost ~]$

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