What is shell variable?
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What is Linux language details
What is the use of a shebang line?
Write a shell script that adds two numbers if provided as the command line argument and if the two numbers are not entered throws an error message.
Rewrite the command to print the sentence and convert the variable to plural: echo “i like $variable”.
What is the difference between break and continue commands?
How to print some text on to the screen?
What is the significance of the shebang line in shell scripting?
How does path variable work?
on “sed” command EmpData(Sample Database) 1122|j.b. saxena |g.m. |account |12/12/52|6000 2233|n.k. gupta |d.g.m |sales |31/12/40|9000 4545|anil agarwal |director |account |06/07/47|7500 5656|lalit choudhury |executive|marketing|07/09/50|5000 1265|chanchal singhvi|g.m. |admin |12/09/63|6000 0110|shyam saksena |chairman |marketing|12/12/43|8000 5566|jai sharma |director |account |23/12/89|7000 7733|jayant |d.g.m |sales |29/02/70|6000 1. From the above database substitute the delimiter of first 3 lines with “ : “ 2. From the above database substitute the delimiter with “ : ” 3. Insert the string “ XYZ Employees” in the first line. 4. Store the lines pertaining to the directors, d.g.m and g.m into three separate files. 5. Using address store first 4 lines into a file Empupdate. 6. Find the pattern “account” in the database and replaces that with “accounts”. 7. Select those lines which do not have a pattern “g.m”. 8. Insert a blank line after every line in the database.
What is bash eval?
What are the two files of crontab command?
What is the difference between grep and egrep?