The man page of rm says: -r, -R, –recursive remove directories and their contents recursively This means the flag -r is expecting a directory. But *.xml is not a directory. If you want to remove the all .xml files from current directory recursively below is the command: find . -name “*.xml” -type f|xargs rm -f
To print all lines after, and including, the first match: $ echo -ne ‘apple\nbanana\ncherry\n’ | sed -ne ‘/banana/,$ p’ banana cherry To print all lines after, and NOT including, the first match: $ echo -ne ‘apple\nbanana\ncherry\n’ | sed -e ‘1,/banana/ d’ cherry Filtering lines when pattern matches between “text=” and “status=” can be done with … Read more
Short answer: HISTSIZE is the number of lines or commands that are stored in memory in a history list while your bash session is ongoing. HISTFILESIZE is the number of lines or commands that (a) are allowed in the history file at startup time of a session, and (b) are stored in the history file … Read more
If you are on the first line, pressing (upper case) J will join that line and the next line together, removing the newline. You can also combine this with a count, so pressing 3J will combine all 3 lines together.
Use utility file, sample usage: $ file /bin/bash /bin/bash: Mach-O universal binary with 2 architectures /bin/bash (for architecture x86_64): Mach-O 64-bit executable x86_64 /bin/bash (for architecture i386): Mach-O executable i386 $ file /etc/passwd /etc/passwd: ASCII English text $ file code.c code.c: ASCII c program text file manual page
There is no difference between umask 0022 and umask 022. The octal umasks are calculated via the bitwise AND of the unary complement of the argument using bitwise NOT. Set the umask like this: el@apollo:~$ umask 0077 el@apollo:~$ umask 0077 el@apollo:~$ umask 0022 el@apollo:~$ umask 0022 Brief summary of umask value meanings: umask 077 – … Read more
unzip myfile.zip extracts files in the working directory by keeping path names from the zip file. So if you get a subdirectory myfile it means it is part of the relative path of compressed files. Check it by listing the zip content unzip -l myfile.zip So you can unzip the file from the directory above, … Read more
You can either write a sed script file and use: sed -f sed.script file1 … Or you can use (multiple) -e ‘command’ options: sed -e ‘/SysAdmin/i\ Linux Scripting’ -e ‘1,$s/A/a/’ file1 … If you want to append something after a line, then: sed -e ‘234a\ Text to insert after line 234’ file1 …
In general, nothing can be said about the relative order of their execution. Now, let’s consider your specific problem. If: both processes take a non-trivial amount of time to run, and you’re saying that one runs to completion before the other makes any progress, and there are unused CPU cycles, and this happens every time … Read more
I found this script somewhere. I don’t remember where, but it works for me: #!/bin/ksh line=”———————————————” pids=$(/usr/bin/ps -ef | sed 1d | awk ‘{print $2}’) if [ $# -eq 0 ]; then read ans?”Enter port you would like to know pid for: ” else ans=$1 fi for f in $pids do /usr/proc/bin/pfiles $f 2>/dev/null | … Read more