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Commands tagged sed from sorted by
Terminal - Commands tagged sed - 317 results
echo -n "text" | od -A n -t x1 |sed 's/ /\\x/g'
2010-07-14 15:31:36
User: camocrazed
Functions: echo od sed
Tags: sed hex ascii od
4

If you're going to use od, here's how to suppress the labels at the beginning. Also, it doesn't output the \x, hence the sed command at the end. Remove it for space separated hex values instead

echo -n 'text' | xxd -ps | sed 's/[[:xdigit:]]\{2\}/\\x&/g'
2010-07-13 21:46:30
User: camocrazed
Functions: echo sed
Tags: sed hex ascii
0

Same as another one I saw, just with a cleaner sed command

Edit: updated the sed command to use the [[:xdigit:]] character class - more portable between locales

Note that it will have a newline inserted after every 32 characters of input, due to the output of xxd

echo "${1}" | egrep '^[[:digit:]]*$' ; if [ "$?" -eq 0 ] ; then sed -i "${1}"d $HOME/.ssh/known_hosts ; else printf "\tYou must enter a number!\n\n" ; exit 1 ; fi
2010-07-11 23:09:11
User: DaveQB
Functions: echo egrep exit printf sed
Tags: sed
-12

I have this as a file called deletekey in my ~/bin.

Makes life a little easier.

ssh-keygen -R <the_offending_host>
2010-07-11 19:37:24
User: bunam
Functions: ssh ssh-keygen
Tags: sed
41

In this case it's better do to use the dedicated tool

sed -i 8d ~/.ssh/known_hosts
sed -n '4{p;q}'
variable="foo" && sed 's/bar/'$variable'/g' $variable.conf >> $variable.temp && sed '1,5d' $variable.temp && mv $variable.temp $variable.conf
2010-07-09 22:12:51
User: jdorfman
Functions: mv sed
Tags: bash sed nginx
0

I wrote this script to speed up Nginx configs. This (long) one liner can be run via BASH. You will see that we set a variable in bash called 'foo' and the streamline editor (sed) finds 'bar' in 'foo.conf' next it writes that output to a temp file (foo.temp) and removes the first 5 lines (that aren't needed in this case) & lastly it moves (overwrites) foo.temp to foo.conf

cut -d: -f1 /etc/passwd | sort
sudo lsof|sed 's/ */ /g'|cut -f3 -d' '|sort -u
2010-07-07 08:20:28
User: binaryten
Functions: cut sed sort sudo
-4

Most systems (at least my macbook) have system users defined, such as _www and using "users" for example will not list them. This command allows you to see who the 'virtual' users are on your system.

vim --version | grep -P '^(\+|\-)' | sed 's/\s/\n/g' | grep -Pv '^ ?$'
2010-07-02 02:57:19
User: evaryont
Functions: grep sed vim
Tags: vim sed grep
2

The above output is for a custom compiled version of Vim on Arch Linux.

Just a quick shell one liner, and presents a list of all the enabled and disabled (those prefixed with a '-') features.

statt(){ C=c;stat --h|sed '/Th/,/NO/!d;/%/!d'|while read l;do p=${l/% */};[ $p == %Z ]&&C=fc&&echo ^FS:^;echo "`stat -$C $p \"$1\"` ^$p^${l#%* }";done|column -ts^; }
2010-06-11 23:31:03
User: AskApache
Functions: column read sed
3

This shows every bit of information that stat can get for any file, dir, fifo, etc. It's great because it also shows the format and explains it for each format option.

If you just want stat help, create this handy alias 'stath' to display all format options with explanations.

alias stath="stat --h|sed '/Th/,/NO/!d;/%/!d'"

To display on 2 lines:

( F=/etc/screenrc N=c IFS=$'\n'; for L in $(sed 's/%Z./%Z\n/'<<<`stat --h|sed -n '/^ *%/s/^ *%\(.\).*$/\1:%\1/p'`); do G=$(echo "stat -$N '$L' \"$F\""); eval $G; N=fc;done; )

For a similarly powerful stat-like function optimized for pretty output (and can sort by any field), check out the "lll" function

http://www.commandlinefu.com/commands/view/5815/advanced-ls-output-using-find-for-formattedsortable-file-stat-info

From my .bash_profile ->

http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html

alias sorth='sort --help|sed -n "/^ *-[^-]/s/^ *\(-[^ ]* -[^ ]*\) *\(.*\)/\1:\2/p"|column -ts":"'
3

Once you get into advanced/optimized scripts, functions, or cli usage, you will use the sort command alot. The options are difficult to master/memorize however, and when you use sort commands as much as I do (some examples below), it's useful to have the help available with a simple alias. I love this alias as I never seem to remember all the options for sort, and I use sort like crazy (much better than uniq for example).

# Sorts by file permissions

find . -maxdepth 1 -printf '%.5m %10M %p\n' | sort -k1 -r -g -bS 20%

00761 drwxrw---x ./tmp

00755 drwxr-xr-x .

00701 drwx-----x ./askapache-m

00644 -rw-r--r-- ./.htaccess

# Shows uniq history fast

history 1000 | sed 's/^[0-9 ]*//' | sort -fubdS 50%

exec bash -lxv

export TERM=putty-256color

Taken from my http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html

dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d' | xargs sudo apt-get -y purge
2010-06-10 20:33:32
User: mitzip
Functions: sed sudo xargs
4

This will remove all installed kernels on your debian based install, except the one you're currently using.

From:

http://tuxtweaks.com/2009/12/remove-old-kernels-in-ubuntu/comment-page-1/#comment-1590

IFS=`echo -en "\n\b"`; for i in $(curl http://feeds.digg.com/digg/container/technology/popular.rss | grep '<title>' | sed -e 's#<[^>]*>##g' | tail -n10); do echo $i; echo $i | sed 's/^/Did you hear about /g' | say; sleep 30; done
2010-06-07 22:16:19
User: echosedawk
Functions: echo grep sed sleep tail
Tags: bash sed curl osx
-2

Instead of having someone else read you the Digg headlines, Have OSX do it. Requires Curl+Sed+Say. This could probably be easily modified to use espeak for Linux.

find ~/.thunderbird/*.default/ -name *.msf | sed 's/ /\\ /g' | xargs rm {} \;
2010-06-04 12:35:24
User: allrightname
Functions: find rm sed xargs
-1

The thunderbird message datastores get corrupt some times causing random failures, compaction to fail and general suck in thunderbird. Removing them causes thunderbird to rebuild the indexes and makes things quick again.

ls -rl --time-style=+%s * | sed '/^$/,/^total [0-9]*$/d' | sort -nk6
sed -n 's/\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}/\nip&\n/gp' ips.txt | grep ip | sed 's/ip//'| sort | uniq
2010-05-23 11:26:32
User: rubenmoran
Functions: grep sed sort
Tags: sed ip address
1

Extracts ip addressess from file using sed. Uses a tag(ip) to grep the IP lines after extracting. Must be a way to just output regex matched on sed.

sortwc () { local L;while read -r L;do builtin printf "${#L}@%s\n" "$L";done|sort -n|sed -u 's/^[^@]*@//'; }
2010-05-20 20:13:52
User: AskApache
Functions: printf read sed sort
2

This provides a way to sort output based on the length of the line, so that shorter lines appear before longer lines. It's an addon to the sort that I've wanted for years, sometimes it's very useful. Taken from my http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html

command ps wwo pid,user,group,vsize:8,size:8,sz:6,rss:6,pmem:7,pcpu:7,time:7,wchan,sched=,stat,flags,comm,args k -vsz -A|sed -u '/^ *PID/d;10q'
2

I've wanted this for a long time, finally just sat down and came up with it. This shows you the sorted output of ps in a pretty format perfect for cron or startup scripts. You can sort by changing the k -vsz to k -pmem for example to sort by memory instead.

If you want a function, here's one from my http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html

aa_top_ps(){ local T N=${1:-10};T=${2:-vsz}; ps wwo pid,user,group,vsize:8,size:8,sz:6,rss:6,pmem:7,pcpu:7,time:7,wchan,sched=,stat,flags,comm,args k -${T} -A|sed -u "/^ *PID/d;${N}q"; }
find . -type f -not -regex ".*\/.svn\/.*" -exec sed -i 's/oldstring/newstring/g' {} +
(for i in `find . -maxdepth 2 -name .svn | sed 's/.svn$//'`; do echo $i; svn info $i; done ) | egrep '^.\/|^URL'
2010-05-09 11:54:37
User: jespere
Functions: echo egrep info sed
0

If you have lots of subversion working copies in one directory and want to see in which repositories they are stored, this will do the trick. Can be convenient if you need to move to a new subversion server.

tree -d -I 'CVS' -f -i | sed 's/\//./g' | sed 's/\.\.//g'
2010-05-03 09:00:13
User: ducleotide
Functions: sed
Tags: sed tree
2

if you need a quick way of printing out all the packages that contain classes this command will print the directory structure and replace '/' with '.'

It will also ignore CVS directories (we use CVS here)

LATEST=`readlink /boot/vmlinuz`; OLD=`readlink /boot/vmlinuz.old`; cat /boot/grub/grub.conf | sed -i -e 's/\(Latest \[[^-]*\).*\]/\1-'"${LATEST#*-}"]'/1' -e 's/\(Old \[[^-]*\).*\]/\1-'"${OLD#*-}"]'/1' /boot/grub/grub.conf
2010-04-21 19:16:51
User: algol
Functions: cat sed
1

I like to label my grub boot options with the correct kernel version/build.

After building and installing a new kernel with "make install" I had to edit my grub.conf by hand.

To avoid this, I've decided to write this little command line to:

1. read the version/build part of the filename to which the kernel symlinks point

2. replace the first label lines of grub.conf

grub.conf label lines must be in this format:

Latest [{name}-{version/build}]

Old [{name}-{version/build}]

only the {version/build} part is substituted.

For instance:

title Latest [GNU/Linux-2.6.31-gentoo-r10.201003]

would turn to

title Latest [GNU/Linux-2.6.32-gentoo-r7.201004]"

alias dateh='date --help|sed -n "/^ *%%/,/^ *%Z/p"|while read l;do F=${l/% */}; date +%$F:"|'"'"'${F//%n/ }'"'"'|${l#* }";done|sed "s/\ *|\ */|/g" |column -s "|" -t'
21

If you have used bash for any scripting, you've used the date command alot. It's perfect for using as a way to create filename's dynamically within aliases,functions, and commands like below.. This is actually an update to my first alias, since a few commenters (below) had good observations on what was wrong with my first command.

# creating a date-based ssh-key for askapache.github.com

ssh-keygen -f ~/.ssh/`date +git-$USER@$HOSTNAME-%m-%d-%g` -C 'webmaster@askapache.com' # /home/gpl/.ssh/git-gplnet@askapache.github.com-04-22-10

# create a tar+gzip backup of the current directory

tar -czf $(date +$HOME/.backups/%m-%d-%g-%R-`sed -u 's/\//#/g' <<< $PWD`.tgz) . # tar -czf /home/gpl/.backups/04-22-10-01:13-#home#gpl#.rr#src.tgz .

I personally find myself having to reference

date --help

quite a bit as a result. So this nice alias saves me a lot of time. This is one bdash mofo. Works in sh and bash (posix), but will likely need to be changed for other shells due to the parameter substitution going on.. Just extend the sed command, I prefer sed to pretty much everything anyways.. but it's always preferable to put in the extra effort to go for as much builtin use as you can. Otherwise it's not a top one-liner, it's a lazyboy recliner.

Here's the old version:

alias dateh='date --help|sed "/^ *%%/,/^ *%Z/!d;s/ \+/ /g"|while read l;do date "+ %${l/% */}_${l/% */}_${l#* }";done|column -s_ -t'

This trick from my [ http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html bash_profile ]

sed -n 's/.*<title>\(.*\)<\/title>.*/\1/ip;T;q' file.html
2010-04-19 07:41:10
User: octopus
Functions: sed
3

This command can be used to extract the title defined in HTML pages