Here goes everything round about operations on the linux filesystem.
To change the ownership of all files and folders with a certain group and / or user insight the current folder recursively you can run the following command: $> sudo find . -group OLDGROUP -user OLDUSER -exec chown NEWUSER:NEWGROUP {} \; This way you can set the owning group and / or user.
Therefore we use wget: wget -O outputfile.txt –user sheldon –ask-password https://ask-sheldon.com/genius-stuff.html # f.e. REST wget –http-user USER –http-password PASSWOR http://ask-sheldon.com/import.txt # HTACCESS protection If you let -O param out the output will be stored under its original name.
To delete all content from current position to the end of file on bash, you can take the following steps: Open file in vi or vim $> vi fiele $> # or $> vim file Switch to visual block mode Ctrl+v Press G (Shift+g) Mark text to delete with arrow keys top and down or just press […]
To shred files or partitions securely: $> shred -vun <loops> <File1> <File2> $> shred -vzn <loops> <Device> loop is the count of the loop beginning with 0 (3 means 4-times)!!! You can get the partition table as described in List of partitions or List, partitioning and format drives. If you want to shred a directory recursively, you […]
You can get a sorted list of directory items with a combination of the ls- and sort- command: $> ls -al | sort -nk9,9 With k you can define the column(s) (here 9 till 9) to use for sorting. The parameter n results in a numeric sorting.
$> cat products_delta.xml | xmllint –format – > products_delta_lint.xml  Attention: Don’t use the same file as source and destination! That will result in an empty file!
To get a CSV export of all image files with name, last access date, last change date, last modification date and filesize in byte in a folder including all subfolders, you can use this linux command: $> find . -regex “.*\.\(jpg\|gif\|png\|jpeg\)” -type f -printf “%p,%AY-%Am-%AdT%AT,%CY-%Cm-%CdT%CT,%TY-%Tm-%TdT%TT,%s\n” > filestat_data_20141201.csv or separated by tabs: $> find . -regex […]
To sync filesystems over ssh (with port): $> rsync -azvu –exclude-from=’./exclude.txt’ -e ‘ssh -p 26 -o StrictHostKeyChecking=no’ user@host:/PATH/TOREMOTE/FILE/ORFOLDER/ /PATH/TO/LOKAL/FILEORFOLDER; Useful parameters -o StrictHostKeyChecking=no –  tells the the source host to accept the ssh-key from the destination host –exclude-from=’./exclude.txt’ – in exclude.txt each line specifies a path to ignore through synchronization –dry-run – only simulate what would have been […]
$> sed -i ‘s/old-word/new-word/g’ file
With tar On Unix based plattforms you can use the tar command for file compression and also for later uncompression. Compression $> tar -pczf web.tar.gz web/ With -h as the first parameter the real files instead symbolic links are compressed. So you can tar symbolic link targets. To exclude files or folder, you can define –exclude=’fileOFolderPath’ directly […]
