Which option is used for checking if the file exists or not?(a) -e(b) -a(c) -n(d) -fThe question was posed to me in an interview for job.The question is from Using test and [ ] to Evaluate Expressions topic in portion Essential Shell Programming of Unix

Which option is used for checking if the file exists or not?(a) -e(b)

1.	Which option is used for checking if the file exists or not?(a) -e(b) -a(c) -n(d) -fThe question was posed to me in an interview for job.The question is from Using test and [ ] to Evaluate Expressions topic in portion Essential Shell Programming of Unix
Answer» Right option is (a) -e Best explanation: test can ALSO be used to test the various file ATTRIBUTES like its type (ordinary, regular or symbolic LINK). To CHECK whether the file EXISTS or not, we can use the -e option. For example,

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Which option is used for checking if the file exists or not?(a) -e(b) -a(c) -n(d) -fThe question was posed to me in an interview for job.The question is from Using test and [ ] to Evaluate Expressions topic in portion Essential Shell Programming of Unix

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