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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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linux:shell [2024/04/21 13:57] cyril [Misc] |
linux:shell [2024/12/11 09:40] (current) cyril [Misc] |
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| Line 92: | Line 92: | ||
| time (cat file1 > /dev/null; sync) | time (cat file1 > /dev/null; sync) | ||
| </ | </ | ||
| + | * **Check number of arguments and print usage: | ||
| + | if [[ $# -lt 2 ]]; then | ||
| + | echo " | ||
| + | exit 1 | ||
| + | fi | ||
| + | </ | ||
| + | * **Load command output as a file: | ||
| + | diff <(grep x file1) <(grep y file2) | ||
| + | </ | ||
| + | * **Remove extension from file name: | ||
| + | ${f%.png} # with all shells | ||
| + | ${f: | ||
| + | </ | ||
| + | |||
| + | |||
