If you want to use Perl, do it like this: perl -pi -e ‘s/[^[:ascii:]]//g’ filename Detailed Explanation The following explanation covers every part of the above command assuming the reader is unfamiliar with anything in the solution… perl run the perl interpreter. Perl is a programming language that is typically available on all unix like … Read more
The O in FIFO means “out”. Once your data is “out”, it’s gone. 🙂 So naturally if another process comes along and someone else has already issued a read, the data isn’t going to be there twice. To accomplish what you suggest you should look into Unix domain sockets. Manpage here. You can write a … Read more
Adding to Eric Jablow’s answer, here is a possible solution (it worked for me – linux mint 14 /nadia) find /path/to/search/ -type f -name “glob-to-find-files” | xargs cp -t /target/path/ You can refer to “How can I use xargs to copy files that have spaces and quotes in their names?” as well.
The -V option is the nicest, but I wanted to stay away from installing new/other software since my sort didn’t have that option. This is the command that worked for me in the end: sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n test.txt From comments: To reverse the order: sort -t. -k 1,1nr … Read more
If you want to extract the files to the respective folder you can try this find . -name “*.zip” | while read filename; do unzip -o -d “`dirname “$filename”`” “$filename”; done; A multi-processed version for systems that can handle high I/O: find . -name “*.zip” | xargs -P 5 -I fileName sh -c ‘unzip -o … Read more
exiftool does the job for me, it’s written in perl so should work for you on any o/s https://exiftool.org/ usage : exiftool -all= image.jpg UPDATED – as PeterCo explains below this will remove ALL of the tags. if you just want to remove the EXIF tags then you should use exiftool -EXIF= image.jpg
This error means you are trying to modify an executable while it is executing. The “Text” here refers to the fact that the file being modified is the text segment for a running program. Use lsof to check what other processes are using it. You can use kill command to kill it if needed.
Try this little trick to coax grep into thinking it is dealing with multiple files, so that it displays the filename: grep ‘pattern’ file /dev/null To also get the line number: grep -n ‘pattern’ file /dev/null
You can use the diff command for that: diff -bur folder1/ folder2/ This will output a recursive diff that ignore spaces, with a unified context: b flag means ignoring whitespace u flag means a unified context (3 lines before and after) r flag means recursive
awk ‘NR==FNR{a[$1,$2]=$3;next} ($1,$2) in a{print $0, a[$1,$2]}’ file1 file2 Look: $ cat file1 2L 5753 33158 2L 8813 33158 2L 7885 33159 2L 1279 33159 2L 5095 33158 $ $ cat file2 2L 8813 0.6 1.2 2L 5762 0.4 0.5 2L 1279 0.5 0.9 $ $ awk ‘NR==FNR{a[$1,$2]=$3;next} ($1,$2) in a{print $0, a[$1,$2]}’ file1 file2 … Read more