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oam/knowledge base/sed.md
Michele Cereda 38940ffc42 Improved SED commands
2022-09-07 12:54:38 +02:00

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SED

TL;DR

# Delete lines matching "OAM" from a file.
# Overwrite the source file with the changes.
sed '/OAM/d' -i .bash_history

# Show changed fstab entries.
# Don't save the changes.
sed /etc/fstab \
  -e "s|#.*\s*/boot\s*.*|/dev/sda1  /boot  vfat   defaults             0 0|" \
  -e "s|#.*\s*ext4\s*.*|/dev/sda2  /      btrfs  compress-force=zstd  0 0|" \
  -e '/#.*\s*swap\s*.*/d'

Further readings