Revisions to Test if a string contains a substring

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edited Feb 26, 2020 at 18:50

user232326

For the portable way to test if an string contains a substring, use:

file="JetConst_reco_allconst_4j2t.png";       testseq="gen"

[ "${file##*$testseq*}" != "$file" ] &&|| echo True Substring is present

Or "${file##*"$testseq"*}" to avoid interpreting glob characters in testseq.

For the portable way to test if an string contains a substring, use:

file="JetConst_reco_allconst_4j2t.png";       testseq="gen"

[ "${file##*$testseq*}" != "$file" ] && echo True Substring is present

Or "${file##*"$testseq"*}" to avoid interpreting glob characters in testseq.

For the portable way to test if an string contains a substring, use:

file="JetConst_reco_allconst_4j2t.png";       testseq="gen"

[ "${file##*$testseq*}" ] || echo True Substring is present

Or "${file##*"$testseq"*}" to avoid interpreting glob characters in testseq.

added 11 characters in body

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edited Feb 26, 2020 at 18:42

user232326

For the portable way to test if an string contains a substring, use:

file="JetConst_reco_allconst_4j2t.png";       testseq="gen"

[ "${file##*$testseq*}" != "$file" ] ||&& echo True Substring is present

Or "${file##*"$testseq"*}" to avoid interpreting glob characters in testseq.

For the portable way to test if an string contains a substring, use:

file="JetConst_reco_allconst_4j2t.png";       testseq="gen"

[ "${file##*$testseq*}" ] || echo True Substring is present

Or "${file##*"$testseq"*}" to avoid interpreting glob characters in testseq.

For the portable way to test if an string contains a substring, use:

file="JetConst_reco_allconst_4j2t.png";       testseq="gen"

[ "${file##*$testseq*}" != "$file" ] && echo True Substring is present

Or "${file##*"$testseq"*}" to avoid interpreting glob characters in testseq.

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answered Nov 28, 2019 at 20:15

user232326

For the portable way to test if an string contains a substring, use:

file="JetConst_reco_allconst_4j2t.png";       testseq="gen"

[ "${file##*$testseq*}" ] || echo True Substring is present

Or "${file##*"$testseq"*}" to avoid interpreting glob characters in testseq.

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