Answer Posted / arpita das

df -k will give the filesystem usage in kilobytes.
if you do df -a it will giv eth efile system usage as well
as the usage of its partitions also.You can check the
example also..
E.g:1--

bash-3.00$ df -k

Filesystem 1K-blocks Used Available Use%
Mounted on
/dev/sda1 50394964 8614616 39220392 19% /
none 1032140 158900 873240
16% /dev/shm
/dev/sda3 98403344 527484 92877236
1% /viewstore


E.g:2--

bash-3.00$ df -a
Filesystem 1K-blocks Used Available Use%
Mounted on
/dev/sda1 50394964 8614676 39220332 19% /
none 0 0 0 -
/proc
none 0 0 0 - /sys
none 0 0 0 -
/dev/pts
usbfs 0 0 0 -
/proc/bus/usb
none 1032140 158900 873240
16% /dev/shm
/dev/sda3 98403344 527484 92877236
1% /viewstore
none 0 0 0 -
/proc/sys/fs/binfmt_misc
sunrpc 0 0 0 -
/var/lib/nfs/rpc_pipefs
automount(pid5461) 0 0 0 - /net
automount(pid5538) 0 0 0 -
/home
nfsd 0 0 0 -
/proc/fs/nfsd

Describe the usage and functionality of the command rm –r * in unix?

2022

---

What is the command to find maximum memory taking process on the server?

1175

---

Why is shebang used?

1074

---

What are the general commands in using unix os for a beginner?

1132

---

What is merge command in unix?

1462

---

What is the use of find command in unix?

1105

---

Which command is used to create a directory?

1122

---

How do I run a whois command?

1121

---

What does the command '$ls | wc –l > file1' do?

1195

---

Can you explain a little bit about command substitution?

1076

---

Which command is used to restrict incoming messages?

1066

---

Which command is used to copy files?

1141

---

How can we use grep command in unix?

1163

---

Enlist some filename manipulation commands in unix.

1116

---

What's a command word?

1128

---