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| <<Anchor(faq15)>> == How can I run a command on all files with the extension .gz? == Often a command already accepts several files as arguments, e.g. {{{ zcat -- *.gz }}} On some systems, you would use {{{gzcat}}} instead of {{{zcat}}}. If neither is available, or if you don't care to play guessing games, just use {{{gzip -dc}}} instead. The `--` prevents a filename beginning with a hyphen from causing unexpected results. If an explicit loop is desired, or if your command does not accept multiple filename arguments in one invocation, the {{{for}}} loop can be used: {{{ # Bourne for file in *.gz do echo "$file" # do something with "$file" done }}} To do it recursively, you should use a loop, plus the [[UsingFind|find]] command: {{{ # Bash while read file; do echo "$file" # do something with "$file" done < <(find . -name '*.gz' -print) }}} For more hints in this direction, see [[BashFAQ/020|FAQ #20]]. To see why the `find` command comes after the loop instead of before it, see [[BashFAQ/024|FAQ #24]]. ---- CategoryShell |
Light Technician Anthony from Carignan, has hobbies and interests including cycling, Samsung,nokia,sony Xperia,iphone, and dolls. During the last year has made a visit to Rock Shelters of Bhimbetka. |
Light Technician Anthony from Carignan, has hobbies and interests including cycling, Samsung,nokia,sony Xperia,iphone, and dolls. During the last year has made a visit to Rock Shelters of Bhimbetka.