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Command Description DOS Command Unix Equivalent Command Description
Directory contents dir
ls -l
ls -l | more
ls -ltr

(Sort by date)
To list a file type abc.txt cat abc.txt
more abc.txt

(Will pause after every page, then you press a key and it will go to next page, will keep pausing after every page)
Change dir cd bin
cd bin\tmp
cd bin
cd bin/tmp

(Difference is forward slash and back slash)
Find a file dir/s abc.txt find . -name abc.txt
find .. -name abc.txt
find / -name abc.txt
find /home/bambi -name abc.txt
Where '.' is the current directory
To start search from parent dir
To start the search from root dir
To start search from /home/bambi dir
Search word in a file   grep jack abc.txt
grep -i jack abc.txt
grep jack *.txt
Search for word 'jack' in abc.txt
Search for word 'jack' in abc.txt but ignore case
Search for jack in all files ending with .txt in current directory
Current dir cd pwd  
Create Dir mkdir tmp mkdir tmp  
Delete File del abc.txt rm abc.txt

rm -i abc.txt
Files cannot be undeleted on Unix unless you are a Jedi, so be careful.
To prompt y/n before deleting a file.
Remove Dir rmdir tmp rmdir tmp  
copy file copy abc.txt c:\
copy abc.txt c:\jack
cp abc.txt \
cp abc.txt \jack
On Unix, home dirs aren't usually in root partition, so most likely you will run 'cp abc.txt \home\jack'
Disk Utilization Open Windows Explorer and look at properties of each dir or do dir df
df -k
Typical output of df

/home (/dev/vg00/lvol4 ): 1792 blocks 2328 i-nodes
/opt (/dev/vg00/lvol5 ): 706928 blocks 94085 i-nodes
/tmp (/dev/vg00/lvol8 ): 563674 blocks 75151 i-nodes
/usr (/dev/vg00/lvol7 ): 1063006 blocks 141721 i-nodes

Block size can be from 1K, 2K etc depending on what you specified while configuring the OS.

Typical output of df -k

/home (/dev/vg00/lvol4 ) : 512000 total allocated Kb
896 free allocated Kb
511104 used allocated Kb
99 % allocation used

/opt (/dev/vg00/lvol5 ) : 1513116 total allocated Kb
353464 free allocated Kb
1159652 used allocated Kb
76 % allocation used

© New England BSD User Group.