File Comparison and Permission Commands

What does the comm command do?

• The comm command compares two sorted files and shows their differences.

• The comm command deletes duplicate lines from a file.

• The comm command sorts a single file alphabetically.

• The comm command merges two files into one.

How do you use the diff command to compare two files?

• Use the command 'compare file1.txt file2.txt'.

• Run 'diff --compare file1.txt file2.txt'.

• Use the command 'diff file1.txt file2.txt'.

• Execute 'diff file1 file2' without extensions.

What is the primary difference between the diff and comp commands?

• The 'diff' command shows line-by-line differences, while 'comp' provides a general comparison.

• The 'diff' command is used for merging files, while 'comp' is for splitting files.

• The 'diff' command compares file sizes, while 'comp' checks for identical files.

• The 'diff' command shows differences in file permissions, while 'comp' compares file ownership.

What is the syntax for the chmod command?

• chmod -R file mode

• chmod [file] [mode]

• chmod file mode options

• chmod [options] mode file

What are the three types of file permissions in Linux?

• read, write, execute

• open, close, rename

• create, modify, execute

• read, write, delete

How can you change file permissions using chmod?

• Use 'changeperm file' to modify permissions.

• Run 'setperm file' to adjust file access.

• Execute 'permissions file' to alter settings.

• Use 'chmod [options] mode file' to change file permissions.

How can you display only the lines that are different between two files using diff?

• diff -q file1.txt file2.txt

• diff -c file1.txt file2.txt

• diff -i file1.txt file2.txt

• diff -u file1.txt file2.txt

How do you compare two binary files using the comp command?

• Run 'diff file1.bin file2.bin' for binary comparison.

• Use 'compare file1.bin file2.bin' to check differences.

• Execute 'cmp file1.bin file2.bin' to analyze the files.

• Use 'comp file1.bin file2.bin' to compare two binary files.

What does the chmod command do?

• The chmod command changes file permissions.

• The chmod command creates new directories.

• The chmod command compresses files.

• The chmod command deletes files.

What is the effect of the chmod 755 command?

• Sets file permissions to read, write, execute for owner; read, execute for group and others.

• Sets file permissions to read, execute for owner; write for group and others.

• Sets file permissions to read, write for owner; read for group and others.

• Sets file permissions to read, write, execute for everyone.