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1
score
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View specific column of data from a large file with long lines$ cat /tmp/log.data |colrm 1 155|colrm 60 300 |
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1
score
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Replace a regexp pattern in many files at once$ vi +'bufdo %s/pattern/replacement/g | update' +q $(grep -rl pattern /path/to/dir) |
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-1
score
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Delete all untagged Docker images$ docker rmi $(docker images -f "dangling=true" -q) |
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-1
score
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Get a free shell account on a community server$ sh <(curl hashbang.sh | gpg) |
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-1
score
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Run a local shell script on a remote server without copying it there$ ssh user@server bash < /path/to/local/script.sh |
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0
score
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Generate a random 32 characters password$ tr -dc 'a-zA-Z0-9~!@#$%^&*_()+}{?></";.,[]=-' < /dev/urandom | fold -w 32 | head -n 1 |
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0
score
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Date March-18-2019_21h-11m-02s Month-DD-YYYY HH MM SS$ date +"%B-%d-%Y_%Hh-%Mm-%S"s |
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0
score
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Print the list of your Git commits this month$ git log --since='last month' --author="$(git config user.name)" --oneline |
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0
score
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Store the output of find in an array$ mapfile -d $'\0' arr < <(find /path/to -print0) |
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0
score
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Check if a text snippet is valid C code$ gcc -fsyntax-only -xc - <<< "text snippet" |
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0
score
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While loop to pretty print system load (1, 5 & 15 minutes)$ while :; do date; awk '{printf "1 minute load: %.2f\n", $1; printf "5 minute load: %.2f\n", $2; printf "15 minute load: %.2f\n", $3}' /proc/loadavg; sleep 3; done |
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0
score
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Scan entire Git repos for dangerous Amazon Web Service IDs$ git ls-tree --full-tree -r --name-only HEAD | xargs egrep -w '[A-Z0-9]{20}' |
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0
score
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While loop to pretty print system load (1, 5 & 15 minutes)$ while [ 1 == 1 ]; do cat /proc/loadavg | awk '{printf "1 minute load: %.2f\n", $(NF-5)}' && cat /proc/loadavg |awk '{printf "5 minute load: %.2f\n", $(NF-3)}' && cat /proc/loadavg |awk '{printf "15 minute load: %.2f\n", $(NF-2)}'; sleep 3; date; done |
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0
score
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Dump all AWS IAM users/roles to a Terraform file for editing / reusing in another environment$ echo iamg iamgm iamgp iamip iamp iampa iamr iamrp iamu iamup | AWS_PROFILE=myprofile xargs -n1 terraforming |
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0
score
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Organise image by portrait and landscape$ mkdir "portraits"; mkdir "landscapes"; for f in ./*.jpg; do WIDTH=$(identify -format "%w" "$f")> /dev/null; HEIGHT=$(identify -format "%h" "$f")> /dev/null; if [[ "$HEIGHT" > "$WIDTH" ]]; then mv "$f" portraits/ ; else mv "$f" landscapes/ ; fi; done |
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0
score
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Create a txt files with 10000 rows$ for FILE in *.full ; do split -l 100000 $FILE; mv -f xaa `echo "$FILE" | cut -d'.' -f1`.txt; rm -f x*; done |
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0
score
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Remove all container from an specific network (docker)$ docker ps -a -f network=$NETWORK --format='{{.ID}}' | xargs docker rm -f |
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0
score
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Up all docker services as detached mode over all immediate subdirectories$ for dir in $(ls -d */); do eval $(cd $PWD/$dir && docker-compose up -d && cd ..); done; |
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0
score
|
Find and replace string inside specific files$ grep -ril '$SEARCH_PATTERN' src | sed -i 's/$FIND_PATTERN/$REPLACE_PATTERN/g' |
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0
score
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Puppet/Bash: test compare json objects.$ unless => "client_remote=\"$(curl localhost:9200/_cluster/settings | python -c \"import json,sys;obj=json.load(sys.stdin);print(obj['persistent']['search']['remote'])\")\"; new_remote=\"$( echo $persistent_json | python -c \"import json,sys;obj=json.load(sys.stdin);print(obj['persistent']['search']['remote'])\")\"; [ \"$client_remote\" = \"$new_remote\" ]", |
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0
score
|
Print wifi access points sorted by signal$ iw dev IFACE scan | egrep "SSID|signal" | awk -F ":" '{print $2}' | sed 'N;s/\n/:/' | sort |
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0
score
|
Delete all untagged Docker images$ docker images -q -f dangling=true | xargs --no-run-if-empty --delim='\n' docker rmi |
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0
score
|
Source without circular reference$ [ ! "${LIB}" ] && ( readonly LIB; . "${ $( cd $( dirname $0 ) && pwd ) }/<path_to>/LIB.sh" ) |
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0
score
|
Remove new lines from files and folders$ rename 's/[\r\n]//g' * |
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0
score
|
Kill a process running on port 8080$ lsof -i :8080 | awk 'NR > 1 {print $2}' | xargs --no-run-if-empty kill |