Using grep to find text strings is very useful. This may also be used to view extra text around the matches to get extra context. Use grep like this. grep -R -A 10 -B 10 ‘command arguments’ * 2>/dev/nullgrep -R -A 10 -B 10 ‘command arguments’ * 2>/dev/null This returns 10 extra lines of text … Read more
Some very useful grep tips for a UNIX or Linux user This is a very useful example, this is how to stop grep finding letters before the start of the search term “file*[s-t]”. The \b operator is an end of word marker. ┌──[[email protected]]─[~] └──╼ ╼ $ grep -n "\bfile*[s-t]\b" /usr/share/dict/words 46437:files 46438:filet 46439:filet’s┌──[[email protected]]─[~] └──╼ ╼ … Read more
This is an interesting bash scripting trick. This allows deleting the first 10 lines from a text file, but keeping the rest of the file instead of deleting it. X=10 file="file.txt" # read the file, line by line while read -r line; do # add current line to array # (you can modify this to … Read more
This is how to actually count the lines of code in your C project on Linux. Some people advocate using wc -l, but that would not suit our purposes. The cloc utility is able to do this and more. Firstly, install this utility. sudo apt install clocsudo apt install cloc Then run the utility in … Read more