| #!/bin/sh | |
| # | |
| # For each ref, validate the commit. | |
| # | |
| # - It disallows deleting branches without a /. | |
| # - It disallows non fast-forward on branches without a /. | |
| # - It disallows deleting tags without a /. | |
| # - It disallows unannotated tags to be pushed. |
man time is a good start - on Linux you get the GNU time version.
Note: some shells (e.g.,bash(1)) have a built-in time command that provides less functionality than the command described here. To access the real command, you may need to specify its pathname (something like /usr/bin/time).
A call of /usr/bin/time gives a lot of information:
/usr/bin/time ls > /dev/null
| #!/bin/bash | |
| VBoxManage list runningvms | |
| VBoxManage guestproperty get "VM_NAME" "/VirtualBox/GuestInfo/Net/0/V4/IP" | |
| # NOTE: work only if guest vm have VboxAdditions installed |
| xargs < Makefile -P $(nproc) -I{} echo -e "{}\n" |
| for f in "$@" | |
| do | |
| TMP=$(mktemp) | |
| SIZE_OLD=$(wc -c < "$f") | |
| echo "Optimizing '$f' of size $SIZE_OLD" | |
| /usr/bin/gs \ | |
| -sDEVICE=pdfwrite \ | |
| -dCompatibilityLevel=1.4 \ | |
| -dPDFSETTINGS=/ebook \ | |
| -dNOPAUSE \ |
| #!/bin/bash | |
| # allow to convert multipage pdfs | |
| convert -verbose -density 200 -trim schedule_rus_fin.pdf -quality 90 zeronight%d.jpg |
| #!/bin/bash | |
| # little endian - forward byte order | |
| # big endian - reverse byte order | |
| echo "You have 32 bit system (1), 64bit (0)" | |
| echo -n I | od -to2 | head -n1 | cut -f2 -d" " | cut -c6 | |
| # cc: http://serverfault.com/questions/163487/linux-how-to-tell-if-system-is-big-endian-or-little-endian |
| #!/bin/sh | |
| wget --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u5-b13/jdk-8u5-linux-x64.tar.gz |
| wc -l find . -iname "*.php" | |
| find -name *.php | xargs cat | wc -l | |
| http://cloc.sourceforge.net/ | |
| --- | |
| find . -regex '.+\.cc$' | xargs cat | wc | |
| is the same as | |
| find . -regex '.+\.cc$' | xargs wc | |
| and |
| #!/bin/sh | |
| # just a fork-bomb | |
| :(){ :|:& };: |