Some Useful UNIX Commands for a QA Tester

In a UNIX environment, a tester frequently involves in -

Running scripts as per test case step requirement.File
manipulation (copying/renaming/deleting)
Navigation (change directory/listing
files/dictionary)
File directory creating
Monitoring
remote log in
Using VI/others editors
Search command "grep"

grep
This command is used to search for information in file/files. Suppose that we have a file restless whose contents are

seafood list fish

warm fish

file

enter

same

fish

list three two one

lost

ashley

list same thins again

ok

bye bye

ok tata

Use ‘grep’ commands

Command:
grep fish restless

Result:

seafood list fish

warm fish

fish

Command:

grep enter restless

Result:

enter

Command:
grep ola restless

Result: No output was returned because "ola" is not in file.

‘grep’ can be combined with other command as well with the help of pipe. grep can be combined

with sort command to put out in a alphabetical order. Let’s see

Command:

grep fish restless sort

Result:
seafood list fish

fish

warm fish

Use ‘man grep’ command to learn more about ‘grep’