grep start with
Use: grep -o '-[.*apal' file.txt. Replace file.txt with the actual filename. On the other hand, if you want to match [ at the start of the line: grep -o '^-[.*apal' file.txt. , Your regular expression doesn't mean what you think it does. It matches all lines starting (^) with one (1) repeated zero or more (*) times.
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 grep start with 相關參考資料
Check if a line does not start with a specific string with grep ...
Simply use the below grep command, grep -v '^Nov 06' file. From grep --help , -v, --invert-match select non-matching lines. Another hack through regex, grep -P ... https://stackoverflow.com grep all strings that start with a certain char, and finish with ...
Use: grep -o '-[.*apal' file.txt. Replace file.txt with the actual filename. On the other hand, if you want to match [ at the start of the line: grep -o '^-[.*apal' file.txt. https://unix.stackexchange.com grep lines starting with "1" in Ubuntu - Unix & Linux Stack ...
Your regular expression doesn't mean what you think it does. It matches all lines starting (^) with one (1) repeated zero or more (*) times. https://unix.stackexchange.com grep lines that start with a specific string - Stack Overflow
You should use awk instead of grep for non-regex search using index function: awk -v s="$my_string" 'index($0, s) == 1' file. index($0, s) == 1 ... https://stackoverflow.com Grep only line starting with.... - UNIX and Linux Forums
What I need from grep is the line that start with 1266. (with dot) But that string is also contained into other rows and the grep reports wrong output. The output I'm ... https://www.unix.com How to grep lines which does not begin with "#" or ";"? - Unix ...
grep "^[^#;]" smb.conf. The first ^ refers to the beginning of the line, so lines with comments starting after the first character will not be excluded. [^#;] means any ... https://unix.stackexchange.com Regular expressions in grep ( regex ) with examples - nixCraft
Next I need to find all filenames starting with purchase and followed by another character: grep 'purchase.db' demo.txt. Our final example find ... https://www.cyberciti.biz Use grep to search for words beginning with letter "s" - Stack ...
For all these that want to search for words starting with given letter not for lines this one-liner will do: grep -E '-bs' file.txt # all words starting with ... https://stackoverflow.com |