iegik
3/17/2015 - 10:16 PM

Bash oneliners

oneliners

jpg2webp.sh
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#!/bin/sh
for i in `ls -1`; do cwebp $i -o ${i%%.jpg}.webp ; done
README.md
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  • Rendered
  • Source

echo

echo "Hello, World"

cat <<< "Hello, World"

2>&1 <<< "Hello, World"

loop files

for i in `ls -1`; do ... ; done

Search and Replace

grep -se '' ...

-s shows occurancies

sed -ie '' ...

-i replaces file instantly

Reverse search (have no occurancies)

grep -ve '' ...
jpg2png.sh
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#!/bin/sh
for i in `ls -1`; do convert $i ${i%%.jpg}.png ; done