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This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Write A Command To Find The Total Number Of Lines In A File Without Using Nr? |
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Answer» AWK 'BEGIN {SUM=0} {sum=sum+1} END {PRINT sum}' FILENAME awk 'BEGIN {sum=0} {sum=sum+1} END {print sum}' filename |
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| 2. |
Write A Command To Print The Fields In A Text File In Reverse Order? |
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Answer» AWK 'BEGIN {ORS=""} { for(i=NF;i>0;i--) print $i," "; print "n"}' FILENAME awk 'BEGIN {ORS=""} { for(i=NF;i>0;i--) print $i," "; print "n"}' filename |
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| 3. |
Write A Command To Rename The Files In A Directory With "_new" As Postfix? |
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Answer» LS -F | awk '{PRINT "mv "$1" "$1".new"}' | sh ls -F | awk '{print "mv "$1" "$1".new"}' | sh |
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| 4. |
Write A Command To Print Zero Byte Size Files? |
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Answer» LS -L | awk '/^-/ {if ($5 !=0 ) PRINT $9 }' ls -l | awk '/^-/ {if ($5 !=0 ) print $9 }' |
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| 5. |
Write A Command To Print The Second And Third Line Of A File Without Using Nr.? |
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Answer» awk 'BEGIN {RS="";FS="N"} {PRINT $2,$3}' filename awk 'BEGIN {RS="";FS="n"} {print $2,$3}' filename |
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| 6. |
Write A Command To Print The Line Number Before Each Line? |
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Answer» AWK '{PRINT NR, $0}' FILENAME. awk '{print NR, $0}' filename. |
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| 7. |
In The Text File, Some Lines Are Delimited By Colon And Some Are Delimited By Space. Write A Command To Print The Third Field Of Each Line.? |
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Answer» AWK '{ if( $0 ~ /:/ ) { FS=":"; } else { FS =" "; } print $3 }' filename awk '{ if( $0 ~ /:/ ) { FS=":"; } else { FS =" "; } print $3 }' filename |
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| 8. |
Write A Command To Find The Sum Of Bytes (size Of File) Of All Files In A Directory.? |
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Answer» ls -l | AWK 'BEGIN {SUM=0} {sum = sum + $5} END {PRINT sum}' ls -l | awk 'BEGIN {sum=0} {sum = sum + $5} END {print sum}' |
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| 9. |
Write A Command To Print The Squares Of Numbers From 1 To 10 Using Awk Command? |
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Answer» AWK 'BEGIN { for(i=1;i<=10;i++) {PRINT "SQUARE of",i,"is",i*i;}}' awk 'BEGIN { for(i=1;i<=10;i++) {print "square of",i,"is",i*i;}}' |
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| 11. |
Write A Command Remove All Empty Lines: |
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Answer» SED '/^$/d' test_file.txt sed '/./!d' test_file.txt sed '/^$/d' test_file.txt sed '/./!d' test_file.txt |
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| 12. |
How To Display Even Number Of Records Into One File And Odd Number Of Records Into Another File? |
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Answer» AWK 'NR %2 == 0' test_files.txt awk 'NR %2 != 0' test_files.txt awk 'NR %2 == 0' test_files.txt awk 'NR %2 != 0' test_files.txt |
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| 13. |
How Add A First Record And Last Record To The Current File In Linux? |
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Answer» SED -i -E '1i HEADER' -e '$a Trailor' test_file.txt sed -i -e '1i Header' -e '$a Trailor' test_file.txt |
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| 14. |
How To Get Only Zero Byte Files Which Are Present In The Directory? |
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Answer» LS -ltr| AWK '/^-/ { if($5 ==0) PRINT $9 }' ls -ltr| awk '/^-/ { if($5 ==0) print $9 }' |
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| 15. |
Write A Command Delete All Line Except First Line? |
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Answer» sed –n ‘1!d’ Test_file.txt |
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| 16. |
Write A Command To Print All Line Except First Line? |
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Answer» sed –n ‘1!p’ Test_file.txt |
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| 17. |
Write A Command To Print First And Last Line Using Sed Command? |
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Answer»
sed –n ‘$p’ Test_file.txt sed -n ‘1p’ Test_file.txt sed –n ‘$p’ Test_file.txt |
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| 18. |
How To Print Only Blank Line Of File.? |
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Answer» <P>SED -N '/^$/p' Test_file.txt sed -n '/^$/p' Test_file.txt |
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