This is the command to print all regular files in the src folder but excluding all files within the .svn folders: $ find src -name .svn -prune -o -type f -print where -o is the or operator. Define a shortcut: ff () { find $1 -name .svn -prune -o -...

Unix hidden files are named starting with a dot ".". To find hidden files in the current directory: $ find . -type f -name '.*' or $ find . -type f | grep \\/\\. To find hidden files in the marketing directory: $ find marketing -type f -name '.*' or $ find marketing -type f | grep \\/\\.

First try (this lists files by directory, including directories themselves): ls -R -lrt Second try: find . -type f | xargs ls -lrt

GNU cpio copies files into or out of a cpio or tar archive. There are 3 modes: -o : copy-out mode, copies files into an archive -i : copy-in mode, copies files out of an archive -p : copy-pass mode, combines the copy-out and copy-in steps without actually using an archive Examples: # create a cpio archive with all files in the ...

Operator Meaning -e file1 file1 exists -b file1 file1 is a block special file -c file1 file1 is a character special file -d file1 file1 is a directory -f file1 file1 is a regular -g file1 Set Group ID (sgid) bit is set for file1 -h file1 file1 is a symbolic link -k file1 Sticky bit is set for file1 -L file1 file1 is a symbolic link -p file1 file1 is a named pipe (FIFO) -r file1 file1 is readable by the current process -s file1 file1 has a size greater than zero. -t FileDescriptor FileDescriptor is open and associated with a terminal. -u file1 Set User ID (suid) bit is set for file1 -w file1 Write flag (w) is on for file1 -x file1...

Perl file test operators are unary operators that takes one argument, which can be a file name, a filehandle, or dirhandle. If the argument is omitted, it tests $_ , except for -t , which tests STDIN. Syntax: -X FILEHANDLE -X EXPR -X DIRHANDLE -X where X is: Operator Meaning -r File is readable by effective uid/gid. -w File is writable by effective uid/gid. -x File is executable by effective uid/gid. -o File is owned by effective uid. -R File is readable by real uid/gid. -W File is writable by real uid/gid. -X File is executable by real uid/gid. -O File is owned by real uid. -e File exists. -z File has zero size (is empty). -s File has nonzero size (returns size in bytes)....

Compile mod_proxy_html from source code. Prerequisite: Apache httpd installed on system with header files. Command: # /usr/local/apache2/bin/apxs -i -c -I/usr/local/i... Output: /usr/local/apache2/build/libtool --silent --mode=c...

Use useradd to add a user (the switches are not required, but it's a good idea to give them. For example, without -m you'd create a user without a home directory): # -d switch specifies user home directory # -m ... You also need to use the passwd command to set a new password before the user can log in. To delete a user, use the userdel command: userdel demo

Variable Meaning $_ The default or implicit variable. @_ Within a subroutine the array @_ contains the parameters passed to that subroutine. $a, $b Special package variables when using sort() $<digit> Contains the subpattern from the corresponding set of capturing parentheses from the last pattern match, not counting patterns matched in nested blocks that have been exited already. $. Current line number for the last filehandle accessed. $/ The input record separator, newline by default. $| If set to nonzero, forces a flush right away and after every write or print on the currently selected output channel. Default is 0 (regardless of whether the channel is really buffered by the system or not; $| tells you only whether you've asked Perl explicitly to flush after...

One liners: Oldest find . -printf "%T@ %Tx %TX %p\n" | sort -n | head... Newest find . -printf "%T@ %Tx %TX %p\n" | sort -n -r | h... Shell scripts: Oldest #!/bin/ksh touch -t $(($(date "+%Y") + 1))$(dat... Newest #!/bin/ksh touch -t 197001010000 compareTo N...